Answers
Answer:
The yellow region is 13.73 cm squared
Step-by-step explanation:
---
Area of square:
[tex]8 * 8 = 64 cm^2[/tex]
Area of the 4 quarter-circles:
[tex]4(\pi r^2)/4[/tex]
The fours cancel each other, we are left with:
[tex]\pi r^2[/tex]
r = 4, so substitute that, we get:
[tex]\pi 4^2 = 16 \pi cm^2[/tex]
Which can be approximated to 50.27 cm squared
Subtract the area of the circle from the square:
[tex]64 - 50.27 = 13.73 cm^2[/tex]
So the area of the yellow region is 13.73 cm squared
Related Questions
Find the LCD of the given rational equation
Answers
The LCD of the rational equation above is 4(x + 7)(x - 7).
What is the explanation for the above response?To find the LCD (Least Common Denominator) of the given rational equation, we need to factor the denominators of each fraction and then take the product of the highest powers of each factor.
The first denominator, x^2 - 49, can be factored using the difference of squares formula:
x^2 - 49 = (x + 7)(x - 7)
The second denominator, 4x + 28, can be factored by factoring out the greatest common factor:
4x + 28 = 4(x + 7)
Therefore, the LCD is the product of the highest powers of each factor, which is:
LCD = 4(x + 7)(x - 7)
So we need to multiply each term in the equation by an appropriate form of 1 so that the denominators of all the fractions become the LCD, 4(x + 7)(x - 7).
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Find to value of a if you knew the perimeter was 250 inches long
Answers
Answer:
To find the value of "a" when you know the perimeter of a shape, you need to know the specific shape you're referring to. Please provide more information about the shape in question, such as whether it's a rectangle, triangle, or another geometric figure. Additionally, if you have any specific measurements or relationships between the sides of the shape, please provide them as well.
14. The distance between (x, 2) and (0, 6) is 5 units. Use the Distance Formula to determine
the value of x. Show all your work.
Answers
Answer:
The value of x is 3.
Step-by-step explanation:
The Distance Formula is:
d = √[(x2 - x1)² + (y2 - y1)²]
Using the given points, we have:
d = √[(0 - x)² + (6 - 2)²]
Simplifying inside the square root gives:
d = √[x² + 16]
We know that the distance between (x, 2) and (0, 6) is 5 units, so we can set up the equation:
5 = √[x² + 16]
Squaring both sides gives:
25 = x² + 16
Subtracting 16 from both sides gives:
9 = x²
Taking the square root of both sides gives:
x = ±3
Since we are looking for the value of x, we choose the positive solution:
x = 3
Therefore, the value of x is 3.
An airplane is heading north at an airspeed of 550 km/hr, but there is a wind blowing from the southwest at 40 km/hr.
The plane will end up flying
degrees off course
The plane's speed relative to the ground will be
km/hr
Answers
Answer: To end up due north, the pilot will need to fly the plane 3.382 degrees east of north.
Step-by-step explanation:
don't know how to explain got it form chegg
The hypotenuse of an isosceles right triangle is 13 centimeters longer than either of its legs. Find the exact length of
each side. (Hint: An isosceles right triangle is a right triangle whose legs are the same length.)
The length of one leg is
the length of the other leg is
(Simplify your answers. Type exact answers, using radicals as needed.)
and the length of the hypotenuse is
Answers
The length of the other legs of the isosceles right triangle is 13 + 13√2 centimetres.
How to find the sides of a right triangle?The hypotenuse of an isosceles right triangle is 13 centimetres longer than either of its legs.
An isosceles right triangle is a right triangle whose legs are the same length. The sides of a right triangle can be found using Pythagoras's theorem.
Therefore,
let
y = other legs
Therefore,
(x + 13)² = x² + x²
(x + 13)(x + 13) = 2x²
x² + 13x + 13x + 169 = 2x²
x² - 26x - 169 = 0
Therefore, using the quadratic formula,
[tex]\frac{-b+\sqrt{b^{2} - 4ac } }{2a}[/tex]
where
a = 1b = -26c = -169x = 13 ± 13√2
Therefore, we can only use positive values
x = 13 + 13√2
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Compare each pair of expressions using >, <, or =.
.-32
. |-32|
5 -5
15
___|15|
. |5|_____|-5|
2-17
▾
2 ____ |-17|
. |-27|_____|-45|
.-27______-45
Answers
Comparing each pair of expressions using >, <, or = is given below:
15 > |___15| (because |___15| is equal to 15)2 - 17 < ▾ (because 2 - 17 equals -15, which is less than the square root symbol)-27 > -45 (because -27 is closer to zero than -45)'How to solve-32 < |-32| (because -32 is negative and |-32| is positive)
5 - 5 = 0 (because subtracting the same number results in zero)
15 > |___15| (because |___15| is equal to 15)
|5| = |___|-5|| (because both expressions are equal to 5)
2 - 17 < ▾ (because 2 - 17 equals -15, which is less than the square root symbol)
2 > |____|-17|| (because 2 is positive and |-17| is also positive)
|-27| > ||-45|| (because |-27| is 27 and ||-45|| is 45)
-27 > -45 (because -27 is closer to zero than -45)
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PLEASE HELPPPPP MEHHHH
A composite figure is composed of a semicircle whose radius measures 5 inches added to a square whose side measures 10 inches. A point within the figure is randomly chosen.
What is the probability that the randomly selected point is in the semicircular region?
Enter your answer rounded to the nearest tenth in the box.
%
Answers
The area of a semicircle with radius r is (1/2)πr^2, and the area of a square with side s is s^2. Therefore, the total area of the composite figure is:
Total area = (1/2)π(5^2) + 10^2 = 25π/2 + 100
The area of the semicircular region is (1/2)π(5^2) = 25π/2.
The probability of selecting a point in the semicircular region is:
Probability = Area of semicircular region / Total area
Probability = (25π/2) / (25π/2 + 100)
Probability = 0.198 (rounded to the nearest tenth)
Therefore, the probability that the randomly selected point is in the semicircular region is approximately 0.2, or 20%.
CNNBC recently reported that the mean annual cost of auto insurance is 957 dollars. Assume the standard deviation is 193 dollars. You will use a simple random sample of 58 auto insurance policies. You may assume original population is approximatley normally distributed, and round your answers to three decimals.
Find the probability that a single randomly selected policy has a mean value between 964.6 and 1000.1 dollars.
P(964.6 < X < 1000.1) = ???
Find the probability that a random sample of size
has a mean value between 964.6 and 1000.1 dollars.
P(964.6 < M < 1000.1) = ???
Answers
The probabilities are given as follows:
P(964.6 < X < 1000.1) = 0.071 = 7.1%.P(964.6 < M < 1000.1) = 0.338 = 33.8%How to obtain probabilities using the normal distribution?The z-score of a measure X of a normally distributed variable that has mean represented by [tex]\mu[/tex] and standard deviation represented by [tex]\sigma[/tex] is obtained by the equation presented as follows:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution of the data-set, depending if the obtained z-score is positive(above the mean) or negative(below the mean).The z-score table is used to obtain the p-value of the z-score, and it represents the percentile of the measure X in the distribution.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation given by the equation presented as follows: [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].The mean and the standard deviation for this problem is given as follows:
[tex]\mu = 957, \sigma = 193[/tex]
The probability is the p-value of Z when X = 1000.1 subtracted by the p-value of Z when X = 964.6, hence:
Z = (1000.1 - 957)/193
Z = 0.22.
Z = 0.22 has a p-value of 0.5871.
Z = (964.6 - 957)/193
Z = 0.04.
Z = 0.04 has a p-value of 0.5160.
Hence:
0.5871 - 0.5160 = 0.0711.
For the sample of 58, the standard error is obtained as follows:
s = 193/sqrt(58) = 25.34.
Hence:
Z = (1000.1 - 957)/25.34
Z = 1.7.
Z = 1.7 has a p-value of 0.9554.
Z = (964.6 - 957)/25.34
Z = 0.3.
Z = 0.3 has a p-value of 0.6179.
Hence:
0.9554 - 0.6179 = 0.338.
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Assume the random variable x is distributed with mean of 50 and a standard deviation of 7. Compute the probability.
P(x > 38)
Answers
Using the given random variable and the mean the required probability in the given situation is 0.9772.
What is probability?A probability is a numerical representation of the likelihood or chance that a specific event will take place.
Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
= P(x>36) = P(X-μ/σ>36-50/7)
= P(Z>-14/7) Z=X-μ/σ
= P(Z>-2)
= P(Z<2) [P(Z<z) = P(Z>-z)]
= 0.9772 by the p-value table
Therefore, using the given random variable and the mean the required probability in the given situation is 0.9772.
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Correct question:
Assume the random variable x is normally distributed with mean 50 and a standard deviation 7. Find the indicated probability. P(X>36)
Put the expressions in order from the least to greatest
Answers
Step-by-step explanation:
[tex] { ({4}^{ - 4} )}^{3} \\ = {4}^{ - 12} [/tex]
[tex] \frac{ {4}^{15} }{ {4}^{5} } \\ = {4}^{10} [/tex]
[tex] {4}^{ - 5} \times {4}^{ - 4} \\ = {4}^{ - 9} [/tex]
[tex] \frac{1}{ {4}^{ - 12} } \\ = {4}^{12} [/tex]
least to greatest
[tex]1)\: {4}^{ - 12} \\ 2) \: {4}^{ - 9} \\ 3) \: {4}^{10 } \\ 4) \: {4}^{12} [/tex]
#CMIIWOn Monday Harriet ate 1/4 of a 8 slice of pizza on Tuesday she ate 1/2 of the same pizza what fraction of The Whole Pizza did she eat
Answers
Harriet ate a total of 3/4 of the total pizza
Given data ,
On Monday Harriet ate 1/4 of a 8 slice of pizza
And , on Tuesday she ate 1/2 of the same pizza
Now , If the pizza has 8 slices, then Harriet ate 1/4 of 8 slices on Monday, which is 2 slices.
On Tuesday, Harriet ate 1/2 of the same pizza, which is 4 slices.
So, in total, Harriet ate 2 + 4 = 6 slices of pizza
On simplifying the equation , we get
The whole pizza has 8 slices, so Harriet ate 6/8 of the pizza, which simplifies to 3/4.
Hence , Harriet ate 3/4 of the whole pizza
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1. A survey conducted by a national research center asked a random sample of 920
teenagers in the United States how often they use a video streaming service.
From the sample, 59% answered that they use a video streaming service every day.
a. Construct and interpret a 95% confidence interval for the proportion of all
teenagers in the United States who would respond that they use a video
streaming service every day.
b. Based on the confidence interval in part (a), do the sample data provide
convincing statistical evidence that the proportion of all teenagers in the United
States who would respond that they use a video streaming service every day is
not 0.5? Justify your answer.
Mean Standard Deviation Sample Size
Standard care 0.57 0.26 56
New treatment 0.69 0.27 56
2. Patients experiencing symptoms of a heart attack are routinely transported to a
hospital in an ambulance. In a study of a new treatment thought to reduce damage to
the heart, patients experiencing symptoms of a heart attack were randomly assigned to
one of two groups. During transportation to the hospital, patients in one group received
standard care, and patients in the other group received the new treatment consisting of
standard care and the application of a blood pressure cuff.
The response variable measured for each patient was a number between 0 and 1,
referred to as the myocardial salvage index (MSI). A higher MSI value indicates a more
positive outcome for the patient. Summary statistics for the MSI responses of the two
groups are shown in the table.
Do the data provide convincing statistical evidence that the new treatment results in a
higher mean MSI value than does the standard care among people similar to the
patients in the study?
Answers
Since the calculated t-value is greater than the critical t-value, we reject the null hypothesis, concluding that there's convincing evidence that the new treatment results in a higher mean MSI value than standard care.
How to solvea. The 95% confidence interval for the proportion of teenagers using video streaming services daily is (0.5579, 0.6221). This means we're 95% confident that 55.79% to 62.21% of US teenagers use such services daily.
b. The results demonstrate that the proportion is not 0.5 because the full confidence interval is higher than 0.5.2. We obtain a t-value of roughly 2.51 with 108.52 degrees of freedom using a two-sample t-test.
At a significance level of 0.05, the critical t-value for a one-tailed test is approximately 1.66.
Since the calculated t-value is greater than the critical t-value, we reject the null hypothesis, concluding that there's convincing evidence that the new treatment results in a higher mean MSI value than standard care.
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The graph shows the area in square feet Sally has left to paint. The equation A=392-14x gives the square feet Lisa has left to paint as a function of time in minutes. Which statements are true?
Answers
The statements that are true include the following:
B. Lisa paints more square feet per minute than Sally.
C. Lisa will finish painting before Sally.
D. After 10 minutes of painting Sally will have less to paint than Lisa.
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical expression:
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (0 - 360)/(30 - 0)
Slope (m) = -360/30
Slope (m) = -12
At data point (0, 360) and a slope of -12, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 360 = -12(x - 0)
y = -12x + 360
A = 360 - 12x
For Sally, the time to finish;
360 = 12x
x = 360/12 = 30 min.
For Lisa, the time to finish;
392 = 14x
x = 392/14 = 28 min (Lisa will finish painting before Sally)
For Sally, when x = 10;
A = 360 - 12(10)
A = 240 sq. feet.
For Lisa, when x = 10;
A = 392 - 14(10)
A = 252 sq. feet.
For Sally, when x = 20;
A = 360 - 12(20)
A = 120 sq. feet.
For Lisa, when x = 20;
A = 392 - 14(20)
A = 112 sq. feet.
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please answer i need help!!!!!!!!!!!!!!
Answers
Answer: 29
Step-by-step explanation:
<F is 29 degrees because 180-58=122 and 180-122= 58, so then you divide 58 by 2 to get 29 for each x. The x's are each equal to 29.
Answer:
29 degrees
Step-by-step explanation:
The problem shows angle HGE as 58 degrees.
Segment HF is 180 degrees so we can subtract 58 from 180 to get 122 degrees for angle g
Now, the sum of all angles in a triangle is 180.
So, there are 3 angles in the triangle:
g(we know this is 122)
e
f
the graph denotes that the measures of angle e and f are the same because they are the same variable.
Lets subtract 122 from 180 to get 58.
So, angle e and f together combine to make 58 degrees.
But we also know that e and f have the same measure.
So, to find the measure of f, simply divide 58/2 to get 29 degrees.
May I please have Brainliest? I put a lot of thought and effort into my answers, so it would be much appreciated!
Please answer if you know this one with the steps thank you.
Answers
Answer: 36600 = E
Step-by-step explanation:
Given:
T=.2 (E - 10600)
T=5200
Find: E
Solution:
>substitute into thequation. You know T=5200
5200 = .2(E-10600) > Divide both sides by .2
26000 = E- 10600 > add 10600 to both sides
36600 = E
A gas station sells regular gas for $2.20 per gallon and premium gas for $2.75 a gallon. At the end of a business day 340 gallons of gas had been sold, and receipts totaled $803. How many gallons of each type of gas had been sold?
Answers
Using a system of equations, the quantities of each type of gas sold by the gas station for the business day are as follows:
Regular Gas = 240 gallonsPremium Gas = 100 gallons.What is a system of equations?A system of equations refers to two or more equations solved concurrently.
A system of equations is also known as simultaneous equations because they can be solved at the same time.
Regular Premium
Price per gallon $2.20 $2.75
Total number of gallons of gas sold = 340
The total receipts for the 340 gallons = $803.
Let the number of gallons of the regular gas = x
Let the number of gallons of the premium gas = y
Equations:x + y = 340 ...Equation 1
2.2x + 2.75y = 803 ...Equation 2
Multiply Equation 1 by 2.2:
2.2x + 2.2y = 748 ...Equation 3
Subtract Equation 3 from Equation 2:
2.2x + 2.75y = 803
-
2.2x + 2.2y = 748
0.55y = 55
y = 100
x = 240 (340 - 100)
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Fully factorise 3h² + 12h
Answers
Answer: To factorize 3h² + 12h, we can first find the greatest common factor (GCF) of the two terms, which is 3h:
3h(h + 4)
This is the fully factorized form of 3h² + 12h.
Enter the endpoints as ordered pairs (x, y).
Provide your answer below:
The endpoints of the latus rectum are and
(y + 3)² = (x - 2)
Answers
The endpoints of the latus rectum of the parabola are (3, -2) and (3, -4)
Given data ,
Let the equation of the parabola be (y + 3)² = (x - 2)
Now , y² + 6y + 9 = x - 2
y² + 6y = x - 11
Now we can see that the vertex of the parabola is (2, -3), and the axis of symmetry is parallel to the y-axis. This means that the focus and directrix will also be parallel to the y-axis.
x = h - p
where (h, k) is the vertex and "p" is the distance between the vertex and the focus. In this case, (h, k) = (2, -3) and p = 1, so
x = 2 - 1
x = 1
Therefore, the equation of the directrix is x = 1
And , the axis of symmetry of the parabola is parallel to the y-axis, the latus rectum will be parallel to the directrix, and its endpoints will be equidistant from the focus and the directrix
The distance between the focus and the directrix is 1 unit, so the distance between the endpoints of the latus rectum will also be 1 unit
Therefore, the endpoints of the latus rectum will be at the points where the perpendiculars drawn from the focus to the directrix intersect the parabola
To find the points of intersection between this line and the parabola, we can substitute x = 3 into the equation of the parabola and solve for y
(y + 3)² = (x - 2)
(y + 3)² = (3 - 2)
(y + 3)² = 1
y + 3 = ±1
y = -2 or y = -4
Hence , the points of intersection between the perpendicular and the parabola are (3, -2) and (3, -4)
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Mateo produces a street sign graphic on his computer that is 4 inches by 5 inches. He enlarges the graphic by a scale factor of 3 to print. Then Mateo enlarges the image by a scale factor of 4 before sending it to the machinist.
What are the dimensions of the sign? Write the smaller dimension first and the larger dimension second.
Answers
The dimensions of the sign are as follows, using an overall scale factor of 12 on the original graphic:
Smaller Dimensions = 12 inches by 15 inchesLarger Dimensions = 48 inches by 60 inches.What is the scale factor?The scale factor refers to the ratio of an original scale, object, or drawing to its model or final version.
The scale factor may enlarge or reduce the original dimensions.
The dimensions of the street sign graphic on computer = 4 inches by 5 inches
Scale factor of the graphic on print = 3
The first smaller dimensions:
4 x 3 inches and 5 x 3 inches
= 12 inches by 15 inches
The second larger dimensions:
Scale factor = 4
12 x 4 inches by 15 x 4 inches60 i
= 48 inches by 60 inches
Overall scale factor of the original graphic to the last model = 12 (3 x 4)
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There are 8 blue marbles, 6 red marbles, 2 green marbles and 4 black marbles in a box.
What is the probability that the marble is not green?
Answers
the probability that the marble is not green is 0.9 or 90%. This means that if we were to randomly select a marble from the box, there is a 90% chance that it will not be green.
How to solve probability?
To calculate the probability that a marble is not green, we need to first determine the total number of marbles in the box, which is given by:
Total number of marbles = 8 + 6 + 2 + 4 = 20
Next, we need to determine the number of marbles that are not green. Since there are 2 green marbles, the number of marbles that are not green is given by:
Number of marbles that are not green = 20 - 2 = 18
Finally, we can calculate the probability of selecting a marble that is not green by dividing the number of marbles that are not green by the total number of marbles in the box, as follows:
Probability of selecting a marble that is not green = Number of marbles that are not green / Total number of marbles
= 18 / 20
= 0.9 or 90%
Therefore, the probability that the marble is not green is 0.9 or 90%. This means that if we were to randomly select a marble from the box, there is a 90% chance that it will not be green.
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using calculations show that the height of the barrel of oil is 96.82cm
Answers
The use of calculations to show that the height of the barrel of oil is 96.82cm is given below:
The volume is given as V = 42 gal
The radius is given as r = 18/2 = 9 in
The height is given as h= 96.83 cm
How to solveUsing the formula:
V = πr²h
h = V/(πr²)
The volume is given as V = 42 gal
42 gal x 3.7854 l/gal = 158.987 l
158.987 l = 158,987 ml = 158,987 cm³
The radius is given as r = 18/2 = 9 in
9 in x 2.54 cm/in = 22.86 cm
The height is given as h = (158987 cm³) / π(22.86 cm)² ≈ 96.82 cm
depending on how you round, the more precise answer is 96.8285 ≈ 96.83 cm
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ASAP
A rectangular prism is shown in the image.
A rectangular prism with dimensions of 3 yards by 5 yards by 5 and one half yard.
What is the volume of the prism?
forty one and one fourth yd3
fifty six and one fourth yd3
eighty two and one half yd3
165 yd3
Answers
As a result, the prism's volume is given by V = lwh = 3 x 5 x 5.5 = 82.5 cubic yards. Thus, option C—eighty two and a half yards—is the correct response.
what is volume ?The quantity of room an object takes up in three dimensions is measured by its volume. It is frequently expressed in cubic units like cubic metres, cubic feet, and cubic centimetres. Mathematics formulas that are particular to the shape of the object can be used to calculate its volume, such as V = l w h for a rectangular shape or V = (4/3)r3 for a sphere.
given
V = lwh is the formula for calculating the volume of a rectangular prism, where l, w, and h stand for the prism's length, width, and height, respectively.
Here, the dimensions are 3 yards in length, 5 yards in breadth, and 5.5 yards in height.
As a result, the prism's volume is given by V = lwh = 3 x 5 x 5.5 = 82.5 cubic yards.
Thus, option C—eighty two and a half yards—is the correct response.
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Can someone help me please
Answers
The matrix formed by performing the row operation 2R₁ + R₂ — R₂ on M will have a new R₂ = [ -8 -1 -3]
What is the row of a matrixA rectangular array of numbers or mathematical objects which are arranged in rows and columns is called a matrix. Each row of a matrix is a horizontal sequence of numbers or objects that are separated by commas and enclosed within square brackets, and it represents a vector in the row space of the matrix.
performing the row operation 2R₁ + R₂ — R₂ on M, we have;
2(-3) + (-2) = -8 {row 2 column 1}
2(-1) + 1 = -1 {row 2 column 2}
2(-4) + 5 = -3 {row 2 column 3}
Therefore, the matrix formed by performing the row operation 2R₁ + R₂ — R₂ on M will have a new R₂ = [ -8 -1 -3]
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please help me for 50 points!!
simplify: -3 √84x^3
A. -6x√21x
B. -6√21
C. 6x√21x
Answers
Answer:
C
Step-by-step explanation:
the prime factorization of 84 is 2 x2 x 3 x 7
I can rewrite the problem
-3[tex]\sqrt{84x^{3} }[/tex]
-3[tex]\sqrt{(2)(2)(3)(7)xxx}[/tex] pull out the pairs
-3(2)x[tex]\sqrt{(3)(7)x}[/tex]
-6x[tex]\sqrt{21x}[/tex]
Helping in the name of Jesus.
Transactions on Furnell's credit card are shown for the month of June. The interest rate is 1.4% per month.
June 1 Balance $352.12
June 4 Sears $331.89
June 8 eBay $81.58
June 15 Outback $30
June 18 Payment $200
Find the average daily balance $
184.89
Find the interest for the month $
Find the balance for the following month $
Answers
The interest for the month is: $2.59
The balance for the month is: $598.18.
We have the information from the question is:
The interest rate is 1.4% per month.
June 1 Balance $352.12
June 4 Sears $331.89
June 8 eBay $81.58
June 15 Outback $30
June 18 Payment $200
Now, According to the question:
The average daily balance for June is $184.89.
To calculate the interest for the month,
Multiply the average daily balance by the interest rate:
$184.89 × 1.4% = $2.59.
To find the balance for the month :
Add the initial balance, transactions, and interest, then subtract the payment:
$352.12 + $331.89 + $81.58 + $30 + $2.59 - $200 = $598.18.
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P(RI-T) = 0.25, P(-R|T) = 0.2, P(T) = 0.1
What is P(R)?
O 0.245
O insufficient information
O 0.1060
O 0.305
Answers
Answer:
We can use Bayes' theorem to calculate P(R), which states that the probability of an event A given event B is equal to the probability of B given A multiplied by the probability of A, divided by the probability of B:
P(R|T) = P(T|R) * P(R) / P(T)
We can rearrange this equation to solve for P(R):
P(R) = P(R|T) * P(T) / P(T|R)
We are given that P(RI-T) = 0.25, which can be written as:
P(R∩T) = P(R|T) * P(T) = 0.25
We are also given that P(-R|T) = 0.2, which can be written as:
P(-R∩T) = P(-R|T) * P(T) = 0.2 * 0.1 = 0.02
We can use the law of total probability to find P(T|R):
P(T|R) = P(RI-T) / P(R) = 0.25 / P(R)
We can substitute these values into the equation for P(R) to get:
P(R) = P(R|T) * P(T) / P(T|R)
= 0.25 / [P(T|R) * P(T) + P(-R|T) * P(T)]
= 0.25 / [0.25 + 0.02]
= 0.1060
Therefore, the answer is option C: 0.1060.
the set of five number each of which is divisble by 3
Answers
Answer:
Here's a set of five numbers, each of which is divisible by 3:
{ 3, 6, 9, 12, 15 }
All the numbers in this set are multiples of 3, so they are all divisible by 3.
find surface area of rectangular prism 2.5 2 14 1.5
Answers
The surface area of the rectangular prism is 24.62 square units
What is the surface area of the rectangular prism?From the question, we have the following parameters that can be used in our computation:
2.5 by 2.14 by 1.5
The surface area of the rectangular prism is calculated as
Area = 2 * (Length * Width + Length * Height + Height * Width )
substitute the known values in the above equation, so, we have the following representation
Area = 2 * (2.5 * 2.14 + 2.5 * 1.5 + 2.14 * 1.5)
Evaluate
Area = 24.62
Hence, the surface area is 24.62 square units
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A pair of standard dice are rolled. Find the
probability of rolling a sum of 7 with these dice.
Answers
Answer:
6 out of 36 or 1 out of 6
Step-by-step explanation:
There are 36 possible ways two dice can roll, so the probability of the sum of seven is 6 out of 36, or 1/6.
[tex]\boxed{\sf 16.67\%}.[/tex]
Step-by-step explanation:1. Determine the total amount of different outcomes.So since we have a pair of dice, assuming they are standard 6 faced dices, the total amount of outcomes is given by just multiplying the number of faces or different numbers that the dices can present:
6 x 6 = 36 possible outcomes.
2. Determine the amout of outcomes that meet the requirement of adding up to 7.Now, here we need to count all the possible cases where the outcome of both dices will equal 7. And there are said cases:
1 + 6 = 7
Explanation. Here the first dice presented number 1 and the second presented number 6, adding up to 7.
Other cases that meet the requirement:
2 + 5 = 7
3 + 4 = 7
4 + 3 = 7
5 + 2 = 7
6 + 1 = 7
So the total amount of events that will meet the requirement is 6.
3. Find the probability.So if we have an event with 36 possible outcomes, and only 6 of those 36 outcomes will mean a success on the experiment. Then, to find the probability of those 6 events from happening all we need to do is divide the amount of events considered "success" which is the numbers adding up to 7 by the total amout of outcomes (36).
So, the probability of rolling a sum of 7 with 2 dices is:
[tex]\sf P(\dfrac{6}{36} )=\dfrac{1}{6} =\boxed{\sf 16.67\%}.[/tex]
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Simplify using law of exponents. (3^4)^8
Answers
Step-by-step explanation:
[tex] {( ({3})^{4} })^{8} \\ = {3}^{32} [/tex]