Answer:
87.92ft^3
Step-by-step explanation:
Formula:
V= π*r^2 *h
V=π*2^2*7V=π*4*7V=12.56 *7V=87.92ft^3Answer Number 2 pleaseeee
Answer:
Yes
Step-by-step explanation:
Find the measure of
Step-by-step explanation:
angles a,f,g form a triangle
sum of angles in ∆ = 33 + 112+ a = 180
145 + a = 180
a = 35°
The price of a camera is $ 9810 inclusive of sales tax. If the rate of sales tax is 9%, find the printed price of the camera.
Answer:
$8927.1
Step-by-step explanation:
printed price is the actual price without including tax price
tax price= 9/100×9810
tax price= 0.09×9810= $882.9
printed price of the camera= 9810-882.9= $8927.1
A semi- circle has an area of 35cm . What is its diameter?
Answer:
Area Semicircle = 1/2 πr²where
r radius of semicircle
→ ½ * 22/7 * r² = 35
→ 11/7 * r² = 35
→ r² = 35*7/11
→ r² = 245/11
→ r² = 22.77
→ r = √22.77
→ r = 4.77
Therefore,
Diameter = 2*4.77
= 9.54 cm
The function C(t)=100*e^-0.000121t describes how to find the percentage of carbon-14, C(t), remaining in an object after t years. According to this information, what was the percentage of carbon-14 remaining in an object after 55 years? (Round your answer to the nearest hundredth.)
Answer:
99.34 years
Explanation:
Given function:
[tex]\sf C(t)=100*e^{-0.000121t}[/tex]
Insert t = 55:
[tex]\sf C(55)=100*e^{-0.000121(55)}[/tex]
Simplify following:
[tex]\sf C(55)=99.3367[/tex]
Round to nearest hundredth:
[tex]\sf C(55)=99.34[/tex]
Select two values that can replace \square□\square to make the equation true. \square=5. 40
Answer and Explanation:
x= 5.04
so, as this is a multiple choice question, the two values are
A - five ones and forty thousands
and
C - (5x1) + (4 x 1/100)
and as they both equal 5.04 (the value of "x"), those two would be the correct answers out of the four options given, hope this helps!!
Roger is sixteen years old and eats granola bars. He attends P.R. Walker High School. In this example, is the independent variable.
Roger's age
Roger's school
Roger's diet
Answer:
Since the Independent variable is something that is modified or controlled in a scientific experiment, it is his age.
I don't understand can anyone help me pls
In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Smitha answered all questions and scored (-15) marks though he got 3 correct answers. How many incorrect answer had she attempted?
Any one help I will mark u as BRAINLIEST ANSWER if u help me plssssss! I will not accept wrong answer pls
Answer:
15 answers
Step-by-step explanation:
To solve this question we need to set up an equation.
Let's name the number of incorrect answers x.
We can set up an equation that's essentially:
(Points for correct answer)*(number of correct answers)+(points for incorrect answer)*(number of incorrect answers)=final score
When we plug in our numbers and variables it looks like this:
5(3)+(-2x)=-15
Simplify
15-2x=-15
Subtract 15 from both sides
-2x=-30
Divide both sides by -2
x=15
This means Smitha attempted 15 wrong answers, and that there were 18 questions in total.
The coordinates of the point SS are (7,6)(7,6) and the coordinates of point TT are (-2,6).(−2,6). What is the distance, in units, between the point SS and point T?T?
Answer:
9 units
Step-by-step explanation:
In the points S and T, the y- co ordinate are unchanged. So, the line joining S and T are parallel to x -axis.
So, the distance will be the sum of obsolute value of the x- coordinates.
Distance = I 7I + I - 2I
= 7 + 2
= 9 units
Ryan and Patrick are eating together. They spent a total of
18 dollars on pizzas and calzones. Each pizza is 3 dollars
and each calzone is 2 dollars. They spent 2 minutes
eating each pizza and spent 5 minutes per calzone. It
took them 23 minutes to eat their food.
Help me
Answer:
Will you be my friend? please answer
Step-by-step explanation:
what do you need to find ?
the number of pizzas and calzones they were eating ?
if so :
p = number of pizzas
c = number of calzones
3p + 2c = 18
2p + 5c = 23
let's multiply the first equation by 2 and the second squadron by 3, and then subtract the second from the first :
6p + 4c = 36
- 6p + 15c = 69
-------------------------
0 -11c = - 33
c = 3
2p + 5c = 23
2p + 5×3 = 23
2p + 15 = 23
2p = 8
p = 4
so, they were eating 4 pizzas and 3 calzones.
17 of 3017 of 30 Questions
Question 1
Rectangle PQRS is graphed on the coordinate plane.
Part A
Rectangle PQRS is rotated 90° counterclockwise about the origin to create rectangle P'Q'R'S' (not shown). What are the coordinates of point R'?
a) When rotating 90 degrees clockwise, (x,y) maps onto (-y,x), meaning R(6,-7) maps onto (7, 6).
Does the infinite geometric series diverge or
converge? Explain.
5 + 20 + 80 + 320 +
Answer:
Diverge
Step-by-step explanation:
Infinite geometric series: In infinite geometeric series, if the common ratio 'r' is in between the interval -1 < r < 1, then it converges. If the common ratio 'r' is is not in the interval -1 < r < 1, then it diverges.5 + 20 + 80 + 320 + .....
[tex]\sf Common \ ratio = \dfrac{second \ term}{first \ term}\\[/tex]
[tex]\sf r = \dfrac{20}{5}\\\\ r = 4[/tex]
r = 4 is not in the interval -1 < r < 1. So this infinite geometric series diverges.What is the surface area of this figure?
Answer:
582 ft squared
Step-by-step explanation:
15*9*2 = 270
15*4*2 = 120
6*6*2 = 72
9*4*2 = 72
6*4*2 = 48
270 + 120 + 72 + 72 + 48 = 582
More common denominators with Aleks
Answer:
1/10
Step-by-step explanation:
1/2 - 2/5
common denominator is 10 (2x5)
5/10 - 4/10 = 1/10
a figure has 2 pairs of parallel sides, 2 pair of sides of equal length, and 4 right angles what quadrilateral best describes this figure
if line a is perpendicular to line b and the slope of line a is 7 whats the slope of line b
Answer:
If a line is perpendicular to another line, that means that the slope is completely opposite that of the original line. The first thing that we do to the slope is we negate the number which means that if we have a slope of [tex]-7[/tex] our slope because [tex]7[/tex] in this step. In our case our slope is [tex]7[/tex] so in this step it becomes [tex]-7[/tex].
Moving onto the second part which is to get the reciprocal of the number which means that if we have [tex]\frac{1}{2}[/tex] then we would switch it to [tex]2[/tex]. In our case our number is [tex]-7[/tex] so we would make that into a fraction like this [tex]-\frac{1}{7}[/tex].
In conclusion, our final slope of the perpendicular line is [tex]-\frac{1}{7}[/tex].
Hope this helps! Let me know if you have any questions
Answer: " [tex]-\frac{1}{7}[/tex] " .
_____________
Step-by-step explanation:
Assume we have a two-dimension Cartesian plane graph;
in which equations of straight lines can be expressed in the form of:
" y = mx + b " ;
in which:
"m" is the slope; as well as the "coefficient" of "x" ;
and: "b" is the y-intercept; that is, the value "y" value of the "(x, y)" coordinate at the point which "x = 0" ; that is, where the graph crosses the "y-axis".
Given the ^aformentioned conditions:
Note that if we select a line that can be written in the format:
" y = mx + b " ; then another line that is "perpendicular" to that
[selected line] will have the slope, "m"; of the value that is the "negative reciprocal value" of the slope, "m" ; of the other line.
Note that is our problem, we select a line—in our given problem:
"Line a" —with a slope, "m = 7 " ;
which is perpendicular to the slope of "Line b" ;
→ then: the slope of "Line B" ; would be the "negative reciprocal value"
of "7" .
Note: " [tex]7 = \frac{7}{1}[/tex] " ; the recriprocal would be: " [tex]-\frac{1}{7}[/tex] " .
_____________
Hope this answer is helpful to you!
What is the length of ZA? ZA = 3cm ZA = 4cm ZA = 5cm ZA = 6cm
Answer:
please what is the correct question
Answer: its the last one
Step-by-step explanation:
if f(x)=7x-3, what is the value of x when f(x)=1
Determine if (0, 3) is a solution to y > 2. If so, graph the inequality.
Using two or more complete sentences, describe how to find the general rule for the geometric sequence with
a
4
=
3
and
a
6
=
3
16
. In your final answer, include all of your calculations.
Answer:
123x222
Step-by-step explanation:
because2=2 and 4=4
170 over 360 simplify
Answer: 17/36
Step-by-step explanation:
find the two square roots of the number 16
Answer:
4
Step-by-step explanation:
square root of 16 is 4,
4*4 = 16
Answer:
The square root of 16 is 4.
Step-by-step explanation:
Ms. Remi is planning a dance recital for her students. The maximum duration for the recital is 120 minutes. Group dance performances last 8 minutes and solo dance performances last 3 minutes. x = the number of group dances on the program y = the number of solo dances on the program Which inequality in standard form represents this situation?
A) 3x + 8y ≥ 120
B) 3x + 8y ≤ 120
C) 8x + 3y ≥ 120
D) 8x + 3y ≤ 120
The inequality in a standard form that represents the given statement will be equal to 8x + 3y ≥ 120.
What is an equation?Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.
This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.
As per the given data available in the question,
The maximum duration of the recital is 120 minutes.
Time for group dance = 8 minutes.
Time for solo dance = 3 minutes.
Then, the inequality will be,
8x + 3y ≥ 120
Here, x is the number of group dances on the program, and y is the number of solo dances on the program.
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Can someone please answer this, ill give you brainliest Would be very appreciated.
Answer:
(4, 0) and (-2, 0)(1, -9)(0, -8)Step-by-step explanation:
Finding the x-intercepts :
y-value of the x-intercept is 00 = (x - 4)(x + 2)x - 4 = 0 ⇒ x = 4x + 2 = 0 ⇒ x = -2The x-intercepts are : (4, 0) and (-2, 0)Finding the vertex :
Expanding the function ff(x) = (x - 4)(x + 2)f(x) = x² - 4x + 2x - 8f(x) = x² - 2x - 8Vertex = (h, k)h = -b/2a = -(-2)/2(1) = 1k = (1)² - 2(1) - 8k = 1 - 2 - 8 = -9The vertex is : (1, -9)Finding the y-intercept :
Substitute x = 0 in the functionf(0) = 0² - 2(0) - 8f(0) = -8The y-intercept is : (0, -8)In order to find x-intercept, the f(x) or y will be 0
=================
(x-4)(x + 2) = 0
(x-4) = 0, (x + 2) = 0
x = 4, x = -2
x intercepts: (4, 0) and (-2, 0)
2) What is the ordered pair of the vertex?In order to find vertex use the formula: x = -b/2a
y = (x-4)(x + 2)
y = x² -4x + 2x -8
y = x² - 2x -8
Now find x-coordinate of vertex:
x = -(-2)/2(1)
x = 2/2
x = 1
y coordinates: (1-4)(1 + 2) = -9
Ordered pair of vertex: (1, -9)
3) What is the y intercepts of the graph?In order to find y intercept, insert x = 0
y = (0-4)(0 + 2)
y = -8
y intercept: (0, -8)
What is the third term of the sequence described by the following explicit formula? an = 9 + (n - 1)8
Answer: Solve for a: a = [tex]\frac{8n+1}{n}[/tex]
Solve for n: [tex]n=\frac{1}{a-8}[/tex]
Step-by-step explanation:
solve for n: Move all terms to the left side and set them equal to zero. Then set each factor equal to zero.
solve for a: Divide each term in an = 9 + (n−1) ⋅ 8 by n and simplify.
There are 10 balls in a bag numbered from 1 to 10. Three balls are selected at random without replacement.
A. How many different ways are there of selecting the three balls?
B. What is the probability that one of the balls selected is the number 5?
Answer:
A=1000
B=3.33
Step-by-step explanation:
I think?
A. The total numebr of ways or permutaion selecting three balls from the bag without replacement is 720.
B. The probability of getteing a ball or selecting a ball marked with number five is [tex]\frac{1}{5}[/tex].
What is permutation?A permutation is a mathematical technique that determines the number of possible arrangements in a set when the order of the arrangements matters.
What is th eformula for permutation?The formula for the permutation is
[tex]^{n} P_{r} = \frac{n!}{(n-r)!}[/tex]
Where,
n is the total number of objects
r is the total number of selected students
[tex]^{n} P_{r}[/tex] is the total number of permuations
What is probability?The probability is the measure of the likelihood of an event to happen. It measures the certainty of the event. The formula for probability is given by; P(E) = Number of Favourable Outcomes/Number of total outcomes.
According to the given question.
Total number of balls in a bag = 10
A. Three balls are selected at a randow.
Since, repetition is not allowed or replacement is not allowed.
So, the number of ways selecting the first ball is 10
Number of ways selectiong the second ball is (10-1)
Number of ways selecting the third ball is (9-1)
Therefore,
The total number of ways or permutation selecting three balls from a bag
= [tex]^{10} P_{3}[/tex]
[tex]= \frac{10!}{(10-3)!}[/tex]
[tex]= \frac{10!}{7!}[/tex]
[tex]=\frac{10\times 9\times 8\times 7!}{7!}[/tex]
[tex]= 10\times 9\times 8[/tex]
[tex]= 720[/tex] ways
Hence, the total numebr of ways or permutaion selecting three balls from the bag without replacement is 720.
B.
Total number of ball in a bag = 10
Total number of ball in a bag marked with 5 = 1
Thereofre,
the probability of selecting a ball marked with number 5
= [tex]\frac{total\ number\ of \ balls\ marked\ with \ number\ five\ }{total\ number\ of\ balls\ in\ a \ bag}[/tex]
[tex]= \frac{1}{5}[/tex]
Hence, the probability of getteing a ball or selecting a ball marked with number five is [tex]\frac{1}{5}[/tex].
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Which expressions result in a product that has a best estimate of 60? Select all that apply. A. 0 . 63 × 104 B. 32 . 4 × 21 C. 1 . 1 × 58 D. 0 . 18 × 27 E. 6 × 9 . 82
The expression 6×9.82 is the result of a product that has the best estimate of 60 option (E) is correct.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
We have value of quantity is 60
A) 0.63×104 = 65.52
B) 32.4×21 = 68.04
C) 1.1 × 58 = 63.8
D) 0.18×27 = 4.86
E) 6×9.82 = 58.92
The value of 6×9.82 is 58.92 which is best estimate of 60.
Thus, the expression 6×9.82 is the result of a product that has the best estimate of 60 option (E) is correct.
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Answer: a b e
Step-by-step explanation:
What is seven minus 4
Answer:
3
Step-by-step explanation:
7-4 = 3
4 = 1 + 1 + 1 + 1
So...
Substitute 4 with 1+1...
7 - 1 - 1 - 1 -1
Get rid of the ones one at a time:
6 - 1 - 1 - 1
5 - 1 - 1
4 - 1
3
Mark brainliest please!
Use the diagram to the right to find value of x and y
Answer: Alternativa B
X= 12 raíz de 3 e Y= 6.