Mathematics Middle School

Find the area of the circle with a circumference of 30 π. Use 3.14 for π. Round to the nearest hundredth.

530.66

615.44

706.50

803.84

Answers

Answer 1

Answer:

A≈ 71.62

Step-by-step explanation:

Answer 2
I think it is 71.62 (so sorry if im wrong)

Related Questions

Write and solve an equation to find the value of X

Answers

Angles on a straight line add up to 180 degrees so

45 + 3x = 180
Subtract 45 from both sides to remove the 45 on the left

3x = 135
Then divide both sides by 3
x = 45

Answer is X = 45

Answer:

45 + 3x = 180

x = 45

Step-by-step explanation:

45 + 3x = 180

3x = 180 - 45

3x = 135

x = 135/3

so, x = 45

Please helppppppppppppp!!!!?

Answers

Answer:

c

Step-by-step explanation:

The answer is c thanks

The lengths of the legs of a right triangle are 9 feet and 12 feet. What is the length, in feet, of the third side of the triangle?
A. 21
B. 15
C. 10.5
D. 7.9

Answers

Twenty one feet long
I’m not sure but I think the answer is 21. Hope this can help, tell me if got it wrong I’m sorry if I got it wrong

Help help help read the image please

Answers

all it’s asking is how many students basically scored 90 and under. there’s a total of 25 kids and 14 scored a 90 or less.
It’s only asking how many of them scored under 90 or over 90

The cone in the diagram below has a radius of 10 mm and its height is 24 mm.
The length of the slant height, l, is ______mm

PLEASE HELP ME ASAP!!!!!!!!!!!!

Answers

Slant height l is 26 mm
The slant height for “L” should be 26mm

Find the missing dimension of the cylinder. Round your answer to the nearest whole number.

Volume = 600,000 cm³

Answers

Answer:

look at this

Step-by-step explanation:

helpppp meeeee plzzzz

Answers

Answer:

Our eyes are sensitive to all electromagnet waves with a wavelength longer than infrared

Step-by-step explanation:

I hope this helps :) good luck!

Please, please help me!

Answers

Answer:

X in.

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

We use the Pythagorean theorem

a^2 + b^2 = c^2, here, x is a, x + 2 = b, and 10 is c

x = 6:

6^2 + (6 + 2)^2 = 10^2

36 + 8^2 = 100

26 + 64 = 100

100 = 100

x = 6

Mr. Allway’s math class surveyed all the seventh-grade students to find out their favorite sport.
The following circle graph shows a breakdown of the survey findings.
A circle graph with 39% football, 28% baseball, 30% basketball, and 3% other
If there are 360° in a circle, find the number of degrees for football.
101°
108°
140°
11°
5 of 30

Answers

Answer:

140 degrees

Step-by-step explanation:

39% likes football, multiply the percent by 360 to get the answer. 39% = 0.39

0.39*360 = 140.4

Answer:

C. 140

Step-by-step explanation:

Suppose you flip four coins and you want to determine the probability of exactly three of these coins flipping a head. if flipping three heads is a favorable compound event, what ratio can be used to determine the probability.

Answers

Answer:

Favorable, Possible

Step-by-step explanation:

Circumference (rounding)

Answers

Answer:

41

Step-by-step explanation:

13 cm × 3.14 ( pi )

will give you

40.82 = 41

Answer:

40.8 cm²

Step-by-step explanation:

Use the equation C=2πr to solve

Find the values needed. C=2π·6.5 (radius is half of diameter)Solve your equation. 40.84=2π·6.5Round. 40.84≈40.8

1.4 is what percent of 1.12?

Answers

1.4 is what percent of 1.12=125

Step-by-step explanation:

125

Answer:

1.4 is 125% of 1.12

Step-by-step explanation:

1. We assume, that the number 1.12 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 1.12, so we can write it down as 100%=1.12.

4. We know, that x% equals 1.4 of the output value, so we can write it down as x%=1.4.

5. Now we have two simple equations:

1) 100%=1.12

2) x%=1.4

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=1.12/1.4

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 1.4 is what percent of 1.12

100%/x%=1.12/1.4

(100/x)*x=(1.12/1.4)*x       - we multiply both sides of the equation by x

100=0.8*x       - we divide both sides of the equation by (0.8) to get x

100/0.8=x

125=x

x=125

now we have:

1.4 is 125% of 1.12

6. Consider the diagram below. Solve for x.

Answers

Answer:

X = 33°

Step-by-step explanation:

Hope this helps.

Answer:

33

Step-by-step explanation:

We know that the square is 90 so we can add 90+57 and get 147 so we subtract 180-147 and get 33

Please help, I need three numbers

Answers

The answer is thirty three thousand
33,000 should be your answer

(Please help me) read all of it pls)
For lunch, Nancy bought a glass of juice for $1.50, a chicken sandwich for $5.10, as well as some cobbler for $3.10. The tax came out to $.40, and Nancy paid with $18.00. How much change should Nancy receive?

Answers

Nancy should receive $7.90 in change.

Answer:

$7.90

Step-by-step explanation:

hope this helps :)

The coordinates of the points below represents the vertices of a rectangle.
E: (4,2)
F: (10,2)
G: (10,8)
H: (4,8)
What is the perimeter, in units, of rectangle EFGH?

Answers

Answer:

I believe that the answer would be 24 units. Hope this helps.

Step-by-step explanation:

I really need help. If you would answer, thank you!

Answers

it would be like this:
when x is 2 y is 1
when x is 1 y is 5/2
when x is 0 y is 4
when x is -1 y is 11/2
when x is -2 y is 7

Help me please! Giving brainliest to the correct answer!

Answers

Answer: The answer is 1125 cm

Step-by-step explanation:

By using the equation Area=1/2(b*h) (b=base, h=height)

By using this you can see that the area is 1125 cm

Area=1/2(30*75)= an area of 1125 cm

Answer:

1125 is the answer

Step-by-step explanation:

Hey, can I get some help with this?

Answers

Answer:

1.23E7

Step-by-step explanation:

Answer:

1.23·10^-7

Step-by-step explanation:

To find the solution:

Make it so that the number, 1.23, is less than ten but more than 1. Find how many times you have to move the decimal place to get it to the original number. In this case, it is -7 because you are going back which makes it a negative.Use your amount of spaces needed to go bac as the exponent.You find your final solution of 1.23·10^-7

8. Consider the diagram below. Solve for k.

Answers

the answer is k=73
hope this helps
The answer to your problem above with the diagram is K=73

Need help with logic question please dont answer if you are just putting a s*upid useless answer

Suppose that the given statement is true.
If Quentin goes to the mall, then Bill likes candy.
Which statement must also be true?
1. If Quentin does not go to the mall, then Bill does not like candy.
2. If Bill does not like candy, then Quentin does not go to the mall.
3. If Bill likes candy, then Quentin goes to the mall.

Answers

Statement 3 must be true!

Mark with crown please!

What is the inverse operation of division?

negative numbers
negative numbers

addition
addition

division
division

multiplication
multiplication

subtraction

Answers

multiplication is the inverse operation of division
Answer: Multiplication

PLEASE HELPP
Consider the net of a triangular prism where each unit on the coordinate plane represents ten feet. If a can of spray paint covers 50 square feet, how many cans of spray paint are needed to paint the outside of the prism red?
A) 8 cans
B) 10 cans
C) 12 cans
D) 15 cans

Answers

Answer:

I think the answer is 8

Step-by-step explanation:

Not sure but hope it helps

12 or 8 sorry if not correct, higher chance of being 8

Answer both of the questions please :<

no links!!!

Answers

Answer:

First one: 37.5

Second one: 108

Step-by-step explanation:

For the first one:

the figure shown is a triangle

The area of a triangle can be calculated using this formula

[tex]A=\frac{bh}{2}[/tex] where b = base length and h = height

The triangle shown has a height of 7.5 and a base length of 10

Using this information we plug in the values into the formula.

[tex]A=\frac{7.5*10}{2} \\7.5*10=75\\\frac{75}{2} =37.5\\[/tex]

Hence the area of the figure is 37.5 square units

For the second one.

The figure shown is a parallelogram with a height of 9 and a base length of 12

The area of a parallelogram can simply be calculated by multiplying the base length by the height

So area = 9 * 12

9 * 12 = 108

Hence the area of the figure is 108 square units

Answer:

The answer to the first one is 37.5

The answer to the second one is 108

A=bh=12·9=108

Which point is coplanar with A, B, and C in the diagram below

1.G
2.F
3.E
4.D

Answers

Answer:

D

Step-by-step explanation:

The answer is d
Sksllslems

pls help, will give brainliest to correct answer

Answers

try b and d i’m pretty sure those are it

A straight line measures 150 degrees

a.True
b.False

Answers

Answer:

B. False

Step-by-step explanation:

A straight line is 180 degrees.

Describe the following as:
1.a function but not a relation
2.neither a function or a relation
3.a function and a relation
4.a relation but not a function

Answers

Answer:

It is a relation but not a function. I hope this helps :)

Step-by-step explanation:

If you do the vertical line test it will go through two points and not one so it’s not a function

A relation but not a function, some input values have more than one output value

Solve the equation. Check your solution.

n12 = −3

A. 4


B. -4


C. 36


D. -36

Answers

i’m pretty sure it’s -4

The tree in your friend's yard casts a shadow that is 27 feet long. Your friend is 5 feet tall and casts a shadow that is 4.5 feet long. What is the height of the tree?

Answers

Answer:

the tree is 30 ft tall

Step-by-step explanation:

27/x = 4.5/5

cross multiply

(4.5)(x) = (27)(5)

4.5x = 135

divide the entire equation by 4.5 to isolate x

135/4.5 = 30

x = 30

Answer:

30ft

Step-by-step explanation:

Proportion/ratio question

Tree : Your friend

27ft  :   4.5ft

?      :   5ft

Formula given divided by the original or missing value equivalent

g/o = 5/4.5 = 1.11111 multiplier

Then use multiplier for the tree given value.

27 x 1.111111 = 29.999997

= 30ft

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