Mathematics Middle School

For 1–3, find the area of each circle. Use 3.14 for π. Round to the nearest tenth if necessary.

2. a circle with diameter 8.4 ft

Answers

Answer 1

Answer:

55.4ft

Step-by-step explanation:

Answer 2

9514 1404 393

Answer:

  55.4 square feet

Step-by-step explanation:

The formula for the area of a circle can be written as ...

  A = (π/4)d²

For the given values, this is ...

  A = (3.14/4)(8.4 ft)² = 55.3896 ft²

The area of the circle is about 55.4 square feet.

Related Questions

Can someone Pease help me with this question

Answers

Vertex 0,-1 and axis of symmetry is x=0

Answer: See explanation

Step-by-step explanation:

Vertex is the point where two lines meet.

The vertex of the function is (0, -1)

The axis of symmetry is a line that divides the function into two symmetrical lines.

The axis of symmetry is x = 0 since that's the line that meets with the vertex and it makes the lines symmetrical.

Hope this helped!

There are 169 South American animals in a zoo. That is 45 more than half the number of African animals in the zoo. Enter an equation you could use to find n, the number of African animals in the zoo.


The equation n ÷ __+ __ = __
can help find out how many African animals there are in the zoo.

Answers

Answer:

the n÷45+169=214

Answer:

248

Step-by-step explanation:

There are 169 South American animals in a zoo. That is 45 more than half the number of African animals in the zoo. Enter an equation you could use to find n, the number of African animals in the zoo.

n ÷ __+ __ = __

169 S.A

169 - 45 = 124

124 times 2

248

7 cm
4 cm
8 cm
What is the area of the parallelogram. Show work

Answers

8 x 4 = 32cm^2

The answer is:
32cm^2
I’m pretty sure the answer is 32cm

pls answer all 3 parts

Answers

Answer:

a. 14

b. 1

c. 2

Step-by-step explanation:

If there are 4 one point questions and 5 two point questions, then 5 multiplied by two is 10 and adding it to 4 is 14. The quiz would be 14 points total. If you scored 87.5% on the quiz then you would know that you got 12 of the questions correct and you would know that by finding 87.5% of 14 which the equation to do so would be 87.5/100= 0.875, then 0.875* 14= 12.25. If you round 12.25 to the nearest whole number then it's 12. And since you got all the 1 point questions right, then you must of gotten 1 two point question wrong.

I hope this helps!

Answers
A-14
B-1
C-2
:)

Please help me I need to find the value of x picture is included

Answers

Answer:

x=17

Step-by-step explanation:

I just know well i hope this help <3

17 is x yuhhughihug. Gc np. Thx hbu gb

The measure of angle AFB = 78°

Answers

Answer: is C

Step-by-step explanation: you have a 90 so 90-78 is 12

The answer is 12

We know that angles AFB and CFD and BFC sum up to 180

Using this information we can write the equation

AFB + CFD +BFC = 180

Now substitute known values:

78 + 90 (it is a right angle) + BFC = 180

Now solve-
You should get

180-168 which is 12

Plz Help!!! Due un 5 minutes! I will give brainliest!!

Answers

Answer:

1.11     2.40

Step-by-step explanation:

Answer:

1-  around 11

(Thats all i could answer)

Step-by-step explanation:

Subtract 406-278= 128 ÷ 12= approximately 11

What is the total surface area of the triangular prism below if A = 8, B = 9 and C = 5?

Answers

Answer:I don’t know

Step-by-step explanation: No

I’m pretty sure the answer is 99

Giving brainliest!!!!!!!!!!!!

Answers

The answer would be D

Answer:

D

Step-by-step explanation:

there are data values from 17-26

so D

Consider the circles A, B, C, and D. SOMEONE PLEASE HELP ASAPPPP THANKS!!!

Answers

Answer:

a= d and b= b

Step-by-step explanation:

circumference falls hand and hand with diameter and radius

a has a circumference of about 301 inches

b is about 62 inches

c is about 75 inches

d is about 314

Answer: first question = d and second question = b

Hope this helped

HELP PLEASE!!!
A flower bed is in the shape of a triangle, with a base of 11 feet and a height of 7 feet. What is the area of the flower bed?

38.5 square feet
42.5 square feet
72 square feet
77 square feet

Answers

The answer is 77

7x11=77
:)
It’s 38.5 because it a triangle

Multiply the length by width then divide by 2

Annie went bowling. It cost $3 to rent shoes, plus $4 for every game that she played. She spent $11 total. How would you represent this situation using an equation, and using algebra tiles?

Answers

Answer:

Step-by-step explanation:

3+4g=11, subtract 3 from both sides

4g=8, divide both sides by 4

g=2, so two games were played

3s + 4g= $11

S= means shoes
G= means games

Plz help mee thank you

Answers

i think its b)3.........
It’s letter b number 3

i give yall brainliest

Answers

Answer:

1 ) 7

2 ) 4

3 ) it is always zero !!

Step-by-step explanation:

number 1 is easy !! its always the positive value of whatever number is inside the brackets.

number two, since the signs are both negative, you just divide it normally !! so thats 4 !

and the last one is just a simple rule, where it is always zero.

i hope this helps !

use long division 4÷14.4

HELP

Answers

= 3.60

Solution:
We have the equation:
14.4 ÷ 4 = 3.60
Calculated to 2 decimal places.

Answer:

3.6 is the answer

Step-by-step explanation:

I hope this helps!

The scatter plot shows the relationship between the test scores of a group of students and the number of hours they spend on social media in a week:

A scatter plot is shown. The x-axis is labeled Hours spent on social media, and the y-axis is labeled test score. Data points are located at 0.5 and 100, 2 and 100, 1 and 95, 3 and 85, 3 and 78, 5 and 75, 5 and 72, 6 and 70, 6 and 98, 7 and 60. A circle labeled A includes all of the points except for the one at 6 and 98. Point 6 and 98 is labled B.
Part A: What is the group of points labeled A called? What is the point labeled B called? Give a possible reason for the presence of point B. (3 points)
Part B: Describe the association between a student's test scores and the number of hours spent on social media. (2 points)

Your answer:

Answers

Answer:

A: Not sure what A is called sorry. B is called the outliner. He could be generally better at the subject and understood it more, he could have cheated on his test. He could have simply guessed and got  lucky.

B: The longer he/she spent on social media the worse their test scores became.

Step-by-step explanation:

(as a expression)
]Jerry started doing sit-ups every day. The first day he did 18 sit-ups. Every day after that he did 2 more sit-ups than he had done the previous day. Today Jerry did 28 sit-ups. Enter an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day.

Answers

Answer:

4 or 5

Step-by-step explanation:

28-18+2x
That’s the equation hope it helps

Kevin is driving a truck filled with mulch. The mulch is packed in a container 20 feet long, 15 feet wide, and 12 feet tall. If each cubic foot of mulch weighs 5.6 pounds, what is the weight of the mulch in the truck?

Answers

Answer:

20160 pounds

Step-by-step explanation:

20 * 15 * 12 = 3600 feet^3 = Volume

3600 feet^3 * 5.6 pounds = 20160 lbs

Answer:

The answer is 3605

Step-by-step explanation:

That is the answer because you have to do 20x15x12 and that will equal 3600 and then you do 3600+5.6 and that will equal 3605

kay Kay walks upstairs to make her legs stronger. Every day at work, she walks up 9 flights of stairs. If there are 13 steps in 1 flight of stairs, how many steps does Kay climb in 5 days at work?

Answers

Answer:

The answer is 585

Step-by-step explanation:

Because if you multiply 13 by 9, you get 117, and if you multiply 117 by 5, you get 585.

Answer:

9 flights = 13 steps x 9

everyday

9x13= 117 (117- how many steps she walks in a day)

then for five days

117x5=585

hope this helps

~gold

Find f(4) if f(x) = 12x – 2

Answers

Answer:

21

Step-by-step explanation:

A lawnmower that regularly sells for $150 is on sale for $120. By what percentage was the price decreased?

Answers

Answer:

20%

Step-by-step explanation:

Find the difference of both prices.

150 - 120 = 30

Calculate the ratio of the decrease in price to the original price.

30/150 = 0.2

Multiply the decimal by 100 to get your percentage.

0.2(100) = 20

PLS HELP!! :)
Thx if you do!

Answers

If I am correct the anwser is D. for the 1st one. And for the 2nd one i think its D. I did this in my head so srry if I'm wrong ;)

Step-by-step explanation:

I think the answer for both of them is D too sorry if I’m wrong also lol

A local bookstore is selling each of their books at the same price. Jamal bought 5 books for a total of $64.95.

Which of the following equations represents the cost, C, in dollars for b books?

A. C=5b


B. C=b5


C. C=12.99b


D. C=b12.99

Answers

C ........................

Can someone Pease help me with this question

Answers

Answer:

5 hours after sunrise until 15 hours after sunrise.

Step-by-step explanation:

5 hours after sunset to 15 hours to sunrise

i need help please, again, im sorry.. im gonna be grounded for a year if i dont get this done correctly! this is page 3 of this assignemt and the last page of it.. please help..

Answers

Answer:

1. A

2. H

3. D

______

the algebraic expression that represents "The product of 12 and a number, n.

Answers

Answer:

3+n=12

Step-by-step explanation:

Answer:

The expression would be 12 x n

Step-by-step explanation:

hELP pLSSSSS iT iS dUE tODAY

Answers

X = -4 if that’s what the question is asking
Heres all three. Hopefully this is what you need

Explain how precipitation happens. Use complete sentences and give at least two supporting details​

Answers

Answer:

Precipitation is any liquid or frozen water that forms in the atmosphere and falls back to the Earth. ... Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the Earth.

Step-by-step explanation:

the sun evaporates the water from a stream or some type of water source and it then gets collected  into the clouds and then condensation and the last step is when the water is too heavy so the clouds release it and that is called precipitation. hope this helps.

Zoom in to see the question plzzz help I’m being timed!!!

Answers

Answer: B
Quadrant 2
G is located in Quadrant 2

Hi i just need the missing side for these thanks in advance.

Answers

Answer:

I think its 9

Step-by-step explanation:

I think it’s 9
Not to sure but it might be
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