Find the diameter of a circle with an area of 240.25π square millimeters. Round to the nearest tenth.

Answers

Answer 1

Answer:

D = 31 mm

Step-by-step explanation:

The area of a circle, A = 240.25π sq mm

We need to find the diameter of a circle.

The formula for the area of a circle is given by :

[tex]A=\pi r^2\\\\r=\sqrt{\dfrac{A}{\pi}}[/tex]

If D is the diameter of the circle, D = 2r

So,

[tex]\dfrac{D}{2}=\sqrt{\dfrac{A}{\pi}} \\\\D=2\times \sqrt{\dfrac{A}{\pi}} \\\\=2\times \sqrt{\dfrac{240.25\pi }{\pi}}\\\\=2\times 15.5\\\\=31\ mm[/tex]

So, the diameter of the circle is equal to 31 mm.


Related Questions

HELP ME!!! 20 points!!

Answers

The answer for this question is 1,3,5

what is ( 9 x 2/3 ) x 2/3

Answers

Answer: The answer is 4

calculate the surface area of the following cylinders

Answers

Answer:

~1445.13

Step-by-step explanation:

A = 2 x pi x r + 2 x pi x r^2

Answer:

260π or id we take π=3.14 816.4

Step-by-step explanation:

h=13ft

r=10ft

A=2πr(h+r)=2*10*13*π=260π=816.4

The figure is made up of a cylinder and 2 cones. What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth.


A cylinder and 2 cones. All have a radius of 2 millimeters. The cones have heights of 4 millimeters and 2 millimeters, and the cylinder has a height of 5 millimeters.

Recall the formulas V = B h and V = one-third B h

Answers

Answer:

87.92

Step-by-step explanation:

I took the unit test review in edge 2021

Please help me. PLEASE

Answers

Answer:

Part A: (3, 2)

Part B: 5

Step-by-step explanation:

Point B of the parallelogram is the top right dot on the graph. In order to find its coordinate, we simply trace the dot's trajectory back to the x and y axis accordingly. If we look under the dot we see that its x-axis is 3 and if we look to the left of the dot we see that its y-axis is 2. Therefore, the coordinate of the fourth vertex B is (3, 2)

To calculate the length of side AB we simply count the number of squares between them, which looking at the graph we can see is 5 squares. Therefore the length of AB is 5

.............................................................

Answers

Answer:

0.058863

Step-by-step explanation:

Please help me out with this please and thank you

No links no stealing points

Answers

Answer:

A

5/2 for line 1

5/2 for line 2

5/2 for line 3

B they are all parallel because the have equal slope

Step-by-step explanation:

explanation is in the image

that's all...have fun

what is x⁸ + x² bro this looks easy but I don't understand ​

Answers

Answer:

The sum is;

x⁸ + x²

Step-by-step explanation:

Here, we want to add two polynomials

To add, we check the power of both values in the expression

As we can see, the power is not the same

What this mean is that we can not add the two terms beyond this written expression

So we have the value of the polynomial expression as still being the same

is 10/24 equal to 8/20

Answers

Answer:

No, 10/24 is not equal to 8/20

Step-by-step explanation:

10/24=5/12 when simplified

8/20=2/5 when simplified

Therefore, 10/24 is not equal to 8/20. I hope this helps, and mark me brainliest, please!

Thank you have a wonderful Sunday!

I will give BRAINLEST TO WHO ANSWER !!!!!

Answers

Answer:

a=7 b=24 c=25

Step-by-step explanation:

Leg a=7

Leg b=24

According to Pythagorean theorem: a^2+b^2=c^2

49+576=c^2

C^2=625

c=25

Answer:

Step-by-step explanation:

This is a right triangle, so we may apply the Pythagorean Theorem.  The two leg lengths are 7 and 24 respectively, and so the length of the hypotenuse is

√(7² + 24²) = 25

what is (-5) × (+5) its about intergers! :)

Answers

Answer:

= -25

Step-by-step explanation:

A plumbing contractor charges a fee of $100 a visit and an additional charge of $50 per hour. Which equation can be used to find the number of hours x he worked if he gets paid $950 for a day's work?

Answers

Answer:

100 + 50x = 950

100 - 100 + 50x = 950 - 100

50x = 850

50x/50 = 850/50

x = 17

2,2,3,3,34,5,5,6,8,14 in mean and mode

Answers

Answer:

Step-by-step explanation:

Mean: all the numbers added then divided by the total number of numbers

[tex]m=\frac{2+2+3+3+3+4+5+5+5+6+8+14}{10}\\m= \frac{60}{10}\\\\m=6[/tex]

Mode: number(s) that is most often listed in the list of numbers.

3

Note: should be correct now

Step-by-step explanation:

mean is 7

mode is 2,3,5

your welcome

Can someone please help me with math.

Answers

Answer:

D. (8,1)

Step-by-step explanation:

hope this helps :)

if one zero of the following polynomial 8x^2-13x-4k is the reciprocal of the other, then find k

Answers

Answer:

k = -2

Step-by-step explanation:

2 way to solve:

1st: 8x²-13x-4k = 8(x²-(13/8)x-(k/2))

if 2 roots: a and 1/a

8(x-a)(x-1/a) = 8(x²-(13/8)x-(k/2))

x²-(a+1/a)x+1 = x²-(13/8)x-(k/2)

1 = -(k/2)

k = -2

2nd: 2 roots of 8x²-13x-4k      x=(-b±√b²-4ac)/2a

x = (13±√169-4*8*(-4k))/16 = (13±√169+128k)/16

(13+(√169+128k))/16 = 16/ (13-(√169+128k))  ... root1=1/root2

(13+(√169+128k))*(13-(√169+128k)) = 16*16

13² - (√169+128k)² = 256

169-169-128k = 256

-128k = 256

k = -2

the spinner below is spun.What is the probability of spinning

Answers

WHO HAS THE ANSWER!! I DONT GET IT. PLEASE COMMENT THE ANSWER ON MY POST

What is the lateral surface of the triangular prism?

Answers

Answer:

5

Step-by-step explanation:

A gallon of paint can cover 360 square feet. The radius of a standandard NBA basketball is 4.75 inches. How many basketballs will the paint cover? ( note 144 square inches in 1 square foot )

Answers

Answer:  182 basketballs

===========================================================

Explanation:

We're told that 1 square foot is 144 square inches (this is from 12*12 = 144, since 12 inches = 1 ft).

So because of this, 360 square feet converts to 360*144 = 51,840 square inches.

One gallon of paint can cover 51,840 square inches.

Now let's find the surface area of the sphere, aka ball.

It has a radius of r = 4.75 inches, so,

SA = 4*pi*r^2

SA = 4*pi*(4.75)^2

SA = 90.25pi

SA = 283.528736986479 which is approximate

The surface area of one ball is roughly 283.528736986479 square inches.

Divide the amount of area the paint can cover over the surface area of one basketball:

(51,840)/(283.528736986479) = 182.838609415709

This rounds down to 182. We round down because we won't have enough paint to cover the 183rd basketball.

One gallon of paint can cover 182 basketballs.

could 10.3cm 4.4cm and 8.3 cm be the side lengths of a triangle yes or no

Answers

Answer:

No

Step-by-step explanation:

As you probably know, triangles have 3 sides. The longest side is called the hypotenuse. In this case, the hypotenuse is 10.3. Now, you might or might not know the pythagorean theorem, which states that the a² + b² =c ².

In this case, we can say that 4.4 is a and 8.3 is b. Now if we square 4.4 and add it to 8.3 squared, we get 88.25. However, if you square 10.3, you get 106.09. Thus, the values cannot be this way. So, your answer is no.

Seth can paint one picture in 2 1/2 hours. How many pictures can he paint in 17 1/2 hours?
A. 6
B. 7
C. 8
D. 9

Answers

Answer:

7

Step-by-step explanation:

17 times 60 is 1020

1020 plus 30 is 1050

2 times 60 is 120

120 plus 30 is 150

1050 divided by 150 is 7

Answer:

B.7

Step-by-step explanation:

17.5 divided by 2.5 is 7

Find the value of x
48°
132°
132°

Answers

Answer:

Step-by-step explanation:

there’s no other clues to what it could be, and since it’s x it would be X°

How much do i save when i use a 30% off coupon on a $175 purchase

Answers

Answer: In this example, if you buy an item at $175 with 30% discount, you will pay 175 - 52.5 = 122.5 dollars.

Step-by-step explanation:

A teacher randomly selects students to write the date on the board each day. If there are
12
boys and
9
girls in the teacher’s class, what is the probability the teacher chooses a girl to write the date on the board?

Answers

Answer:

75%

Step-by-step explanation:

9 divided by 12 = 0.75

- 75%

what is the area of the circle r=5

Answers

Answer:

A≈78.5

Step-by-step explanation:

Formula : pie * r^2

3.14 * 5^2

3.14 * 25

78.5

Help help help help help help help help

Answers

Answer:

87,069.6

Step-by-step explanation:

PLSS HELP THE TEACHER IS ASKING FOR MY ANSWERS CUZ I WAS SUPPOSED TO DO IT AND I NEVER WAS PREPARED PLSSS HELP IM NEXT PLS DRAW IT FOR MEE :( EVEN IF ITS EDITED I WOULD APPRECIATE TYSM HAVE A GOOD DAY!

Answers

Answer: what?

Step-by-step explanation:

I don’t know

Answer:

Just multiple each fraction by 2 on the denominator and numerator.

For the drawing part, all you have to do is draw lines until you get the number of the denominator.

Step-by-step explanation:

For. Example, 2/4 times 2 equals 4/8

So for this u would draw lines till you count that there are 8 lines.

I hope this helped you.

Have a nice day.

The figure is made up of a square and a rectangle. How much longer is side FE than A F?

A. 1 foot
B. 2 feet
C. 9 feet
D. 11 feet

Answers

Answer:

2

Step-by-step explanation:

A F = 48

F E = 50

50 - 48 = 2

Thus the answer is 2

Is -2/3(-12b-6+9b-18) equivalent to 2(b+8)? Show your work.
please help.

Answers

Answer:

Step-by-step explanation:

-2/3(-3b-24) = 2(b+8)

6b/3+48/3 = 2b+16

2b+16 = 2b+16 => equivalent

Is -2/3(-12b-6+9b-18) equivalent to 2(b+8)?

To find out, simplify the left side.

Multiply every term in the parentheses by 2/3.

(8b + 4 - 6b + 12)

Simplify.

(2b + 16)

Factor out 2.

2(b + 8)

We conclude that -2/3(-12b-6+9b-18)

equals 2(b + 8).

Which expression has a value of 15 when n = 7?

A.43-5n

B.3n-5

C.6n-28

D.19- 28/n

Answers

Answer:

The answer is D.

Step-by-step explanation:

28/7 = 4 and 19-4 = 15.

can I get help with the answer​

Answers

Answer:

12   never     mind it is 72

Step-by-step explanation:

6x6=36

36x2=72

Answer:

6 x 6

Step-by-step explanation:

because when You multiply x2 is by the same number

so it's 6 x6 = 36

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