Answer:
-4/15 would be your answer
Step-by-step explanation:
an easier way to recognize this would be to ignore the parenthesis and take the 2 negatives that would then be next to each other, and combine them into a positive, making them -9/15+5/15=-4/15 as your answer.
what is the mean median mode and range of 14, 9, 20, 5, 17, 13
Answer:
no mode, median=8.5 mean 13
Step-by-step explanation:
5, 9, 13, 14, 17, 20
A survey was given to a random sample of 45 residents of a town to determine
whether they support a new plan to raise taxes in order to increase education
spending. of those surveyed, 9 respondents said they were in favor of the plan. at the
95% confidence level, what is the margin of error for this survey expressed as a
proportion to the nearest thousandth?.
Using the z-distribution, it is found that the margin of error for the 95% confidence interval is of 0.117.
What is a confidence interval of proportions?A confidence interval of proportions is given by:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which:
[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.The margin of error is given by:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In this problem, we have a 95% confidence level, hence[tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so the critical value is z = 1.96.
The sample size and the estimate are given as follows:
[tex]n = 45, \pi = \frac{9}{45} = 0.2[/tex]
Hence the margin of error is given by:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]M = 1.96\sqrt{\frac{0.2(0.8)}{45}}[/tex]
M = 0.117.
More can be learned about the z-distribution at https://brainly.com/question/25890103
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BRAINLIEST To whoever can give the correct answer with an in-depth explanation !
Step-by-step explanation:
1
area of the square :
6×6 = 36 cm²
area of the triangle :
6×4/2 = 6×2 = 12 cm²
height of triangle :
area of the triangle is
10×height/2 = 40
10×height = 80
height = 80/10 = 8 cm
width of the logo :
the central square has ashtray an area of 5×5 = 25 cm².
that leaves us 125 - 25 = 100 cm² for the 4 triangles.
I assume all 4 triangles are equal, so each has an area of 100/4 = 25 cm².
the area of such a triangle is
baseline × height / 2.
so, in our case
5 × height / 2 = 25
5 × height = 50
height = 10 cm
and so, the width of the logo is 2 times the height of these side triangles, and 1 time the side length of the central square :
2×10 + 5 = 25 cm
Emma is great at the standing long jump. Her best jump is 10 feet 8 inches. How many inches is this?
Answer:
128 in.
Step-by-step explanation:
1 ft = 12 in
10 x 12 = 120
120 + 8 = 128
128 in.
Hey guys! Sorry to bother but I need help with these. 5th grade math, will give brainliest! (If you see multiple questions by me that look the same, they are all different.)
Answer:
Question 3: 1/15 Question 4: 50
Step-by-step explanation:
Just divide the fractions by the numbers.
A diagonal of a cube measures
150 cm. The diagonal of a face measures 10 cm.
3999
What is the length, in centimeters, of an edge of the cube? Round the answer to the nearest tenth.
centimeters
Save and Fit
S
Answer: 7cm
Step-by-step explanation:
Use pythagorean theorum:
Variables:
Let the edge = A
Face diagonal (F) = 10cm
Inner diagonal (I) = sqrt(150) cm
A^2 = I^2 - F^2
A^2 = [sqrt(150)]^2 - 10^2
A^2 = 150 - 100
A^2 = 50
A = sqrt(50)
A = 7.0710678 cm
A = 7cm (to the nearest tenth)
so, length of an edge = 7cm
A lock has a three number code made up of 17 numbers if none of the numbers are allowed to repeat how many different ways can you choose three different numbers in order for unit code?
Answer:
680
Step-by-step explanation:
Use the binomial coefficient where you choose [tex]k=3[/tex] numbers out of [tex]n=17[/tex] possible numbers and find the total amount of combinations since order does not matter:
[tex]\displaystyle \binom{n}{k}=\frac{n!}{k!(n-k)!}\\ \\\binom{17}{3}=\frac{17!}{3!(17-3)!}\\\\\binom{17}{3}=\frac{17!}{3!(14)!}\\\\\binom{17}{3}=\frac{17*16*15}{3*2*1}\\\\\binom{17}{3}=680[/tex]
Thus, you can make 680 three-non-repeating-number codes
The area of the triangle is
Answer:
3units squared
Step-by-step explanation:
1/2 the base times the height
1/2 * 2 * 3 = 3
Victoria wants to purchase a skateboard. She has $125 to spend. She
finds one that regularly sells for $140 and is on sale for 15% off. Sales
tax is 7%.
Victoria says that she has enough money to buy the skateboard. Is she
correct?
Answer:
we know that
Victoria has $125 to spend
[purchase price skateboard]=$139.99-0.15*$139.99-----> $139.99-$21
[purchase price skateboard]=$118.99
sales tax is 7%----------> 0.07*$118.99----------> $8.33
sales tax is $8.33
Victoria has to pay [$118.99]+[$8.33]=$127.32
$127.32 > $125
therefore
Victoria has not enough money to buy the skateboard
the answer is
Victoria has not enough money to buy the skateboard
Step-by-step explanation:
A hockey puck strikes a wall at an angle of 30 degrees. the puck then travels away from the wall at the same angle.
Two or more angles whose sum is 180° are called supplementary angles. The measure of the ∠y is 120°.
What are supplementary angles?Two or more angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two-two angles are two pairs of supplementary angles. That means, that if supplementary angles are aligned adjacent to each other, their exterior sides will make a straight line.
Given the puck strikes the wall at an angle of 30°, it goes away at the same angle of 30°. Therefore, the measure of angle y can be found using the sum of the angle as a supplementary angle. Thus, we can write,
30° + ∠y + 30° = 180°
60° + ∠y = 180°
∠y = 180° - 60° = 120°
Hence, the measure of the ∠y is 120°.
Learn more about Supplementary Angles:
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Micah wants to cover the seats with a weatherproofing stain how much stain will he need
Answer:
Enough to cover the seat
Step-by-step explanation: If this is a question dealing with the area of said object (seat) simply make an equation to find the area of your object. So let's say we got a seat that is 4 feet wide and 6 feet tall.
We will multiply 4 feet times 6 feet and that's where we get 24 feet.
So we know how many inches are in a feet right, there are 12 inches per foot. So 12 time 24 is our problem 12 x 24 = 288 inches. So we would need enough stain to cover 288 inches .
I hope this helps, when you ask for an awswer on brainly. I would highly recommend providing as much relevant context as you can. Have a nice day, and don't over think things ;)
On Amber’s math test, she was asked whether the equation x=1/2y^2 represents a function. She made the following table and graph. Amber concluded that the equation represents a function. Which additional point could be added to the graph to show Amber that the equation does not represent a function?
A. (–2, 2)
B. (0, 0)
C. (8, –4)
D. (8, 8)
Answer:
C
Step-by-step explanation:
I took the test.
The additional point could be added to the graph to show Amber that the equation does not represent a function will be (8, -4). Then the correct option is C.
What is a function?A statement, principle, or policy that creates the link between two variables is known as a function.
The equation is given below.
x = (1/2)y²
For the single value of x, the value of y is not single.
Thus, it is not a function.
The additional point could be added to the graph to show Amber that the equation does not represent a function will be (8, -4).
Then the correct option is C.
More about the function link is given below.
https://brainly.com/question/5245372
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ms. Diaz buys strawberries by the pound at a farmers market . she pays $21.25 for all her strawberries. one pound of strawberries cost $4.25
Answer:
5 strawberries
Step-by-step explanation:
$21.25÷$4.25=5
if 6y+3x+=15 what is the value of 5(3x+6)?
Answer: 15x+30
Step-by-step explanation:
The value of 5(3x+6) is 15x+30
What is the distributive propertyTo “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Given that;
[tex]5(3x+6)[/tex]
/ \
[tex]15x+30[/tex]
Therefore, The value of 5(3x+6) is 15x+30
Learn more about the distributive property here:
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Solve 2 log x = log 36. x = 1.6 x = 6 x = 18 x = 72
Answer:
Answer is B. X=6, Positive and negitive terms cancel out
Step-by-step explanation:
Answer:
x=6
Step-by-step explanation:
I took the test
This is an example of which method/property?
Answer:
distributive
Step-by-step explanation:
(x+y) (z) = xz+ yz is distributive
how many quarts are in 2 gallons?
Answer:
8 quarts
Step-by-step explanation:
There are 4 quarts in 1 gallon
So in 2 gallons there would be 4 × 2 = 8 quarts
Its 2 Lquid gallons = 8 Liquid quart
A toy store is building a display with two rectangular prisms. The base of each prism is a square with an edge length of 6 inches. One prism is 10 inches tall and the other is twice as tall. The two prisms are stacked on top of each other. What is the total volume of the display?
If the two prisms are stacked on top of each other then the height of the prism is 30 inches. Then the volume of the prism will be 1080 in³.
What is a rectangular prism?A rectangular prism is a closed solid that has two parallel rectangular bases connected by a rectangle surface.
A toy store is building a display with two rectangular prisms.
The base of each prism is a square with an edge length of 6 inches.
One prism is 10 inches tall and the other is twice as tall.
The two prisms are stacked on top of each other.
Then the total volume of the display will be
The volume of the prism will be
Volume = Base area × Height
Then the height of the second prism will be
h₂ = 2 × 10 = 20 inches
Then the volume of the prism will be
Volume = 6 × 6 × 10 + 6 × 6 × 20
Volume = 360 + 720
Volume = 1080 cubic inches
More about the rectangular prism link is given below.
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what is 635 divided by 8
Answer: 79.375
Step-by-step explanation:
Answer:
79.375
Step-by-step explanation:
hope i helped
Linet passes through points (2, 2) and (10, 9). Line u is parallel to line t. What is the slope of
line u?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
7/8
Step-by-step explanation:
Understanding the situation
Parallel lines have the same slopes.
If line t is parallel to line u then the slope of line t is the same as the slope of line u.
Finding the slope of line t
Slope formula = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
where the x and y values are derived from points on the line
here, we are given that line to goes through (2,2) and (10,9)
Given that we can assign variables
we have (x1,y1) = (2,2) so x1 = 2 and y1 = 2
we also have (x2,y2) = (10,9) so x2 = 10 and y2 = 9
Now that we have assigned variables we plug them into the formula
Recall formula : [tex]slope=\frac{y_2-y_1}{x_2-x_1}[/tex]
==> plug in x1 = 2 , y1 = 2, x2 = 10 and y2 = 9
[tex]slope =\frac{9-2}{10-2}[/tex]
==> simplify top and bottom
[tex]slope =\frac{7}{8}[/tex]
The slope of line t is 7/8
Finding the slope of line u
Because line t and line u are parallel line u also has a slope of 7/8
Please help me on this!
Answer:
C. the amount the tomato plant grows each week
Step-by-step explanation:
its height is already 23 and it grows by 2.4 each week (x)
Have a nice day! :)
julia and her friends are making kites out of paper. For each kite, they need a piece of paper that is \dfrac{65}{100} \text{ meter} 100 65 meterstart fraction, 65, divided by, 100, end fraction, start text, space, m, e, t, e, r, end text wide. How many centimeters of paper will they need to make 444 kites?
Answer:
260 cm
Step-by-step explanation:
Each 1/00 of a meter is 1 cm, so 65/100 meters is 65 cm. If that is the length of paper required for 1 kite, then 4 times that length will be required for 4 kites.
__
The paper required for 4 kites is ...
(65 cm) × 4 = 260 cm
can someone please tell me how many cups is 7/2 pints??
Answer:
8
Step-by-step explanation:
can somebody helpp wit these two????
Answer:
i think the answer is c
Step-by-step explanation:
What is the value of the expression g (g + 1)2 for g = 2 ?
F.
10
G.
12
H.
18
J.
20
K.
36
Answer:
Step-by-step explanation:
2(2 + 1)^2 = 2(3)^2 = 2(9)= 18
Find the distance between (5, 6) and (-9, -2)
Answer:
So we must determine the distance between our two given points and that can be found using the distance formula [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex].
Plugging the values into the equation and solve
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]d=\sqrt{(-9-5)^2+(-2-6)^2}[/tex]
[tex]d=\sqrt{(-14)^2+(-8)^2}[/tex]
[tex]d=\sqrt{196+64}[/tex]
[tex]d=\sqrt{260}[/tex]
[tex]d=16.125\ units[/tex]
Therefore, our final answer is that the distance is 16.125 units
Hope this helps! Let me know if you have any questions
Which of the following could be the length of the sides of the triangle. YES or NO
1. 13,10,11
2. 12,8,10
3. 2,2,4
4. 6,7,8
5. a,b,a+b
6. 21,9,38
7. 20,20,41
8. 4.5,8.5,12.5
9. 12.4,7.2, 20
10. 56,44,90
Answer:
it's I'd 20,20,41 number seven
An athlete completes one round of a circular track of diameter 200 m in 40 s what will be the distance covered and displacement at the end of 2 min 20s
Answer:
700π m ~ 2199 m
Step-by-step explanation:
diameter = d = 200 m
2 min 20s = 140 s
1 round / 40 s
140 = 40 * 3 + 20
so the athlete will cover 3 round and half
1 round = d * π
covered = c = 3 * 200 * π + 200/2 * π = 700 * π
Select the quotient that is less than 1?
A) 2.805 ÷ 2.58
B) 1.001 ÷ 1.01
C) 0.46 ÷ 0.406
In which number is the value represented by the digit in the hundreds place 10 times
the value represented by the digit in the tens place?
4,771
3,389
3,244
1,437
Answer:
4,771
Step-by-step explanation:
In the number 4771, the hundreds digit (7) is 10 times the tens digit (7).