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4 years ago

Keep gettin those wrong. Please help!!!

Mathematics

1 answer:

larisa [96]4 years ago

5 0

Answer: About 14.14 in^3

Step-by-step explanation:

We know that the circumference of a sphere is C=2πr. We are given that the circumference is 9.42 in. We can find the radius to get our volume.

$9.42=2\pi r$

$4.71=\pi r$

$r=1.5\\$

Now that we know radius, we can find our volume.

$V=\frac{4}{3} \pi r^3$

$V=\frac{4}{3} \pi (1.5)^3$

$V=14.14in^3$

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A museum groundskeeper is creating a semicircular statuary garden with a diameter of 29 feet. There will be a fence around the g

azamat

Answer:

The fencing will cost $330.09

Step-by-step explanation:

First we have to calculate the perimeter of the semicircle for that we use the following formula:

d = diameter = 29ft

s = semicircle

π = 3.14

s = d * 1/2 * π

we replace the values that we know

s = 29ft * 1/2 * 3.14

s = 45.53ft

Now we multiply the number of feet by the price of what comes out 1 foot of fence

45.53 * $7.25 = 330.0925

Round to the nearest hundredth

$330.0925 = $330.09

4 0

3 years ago

9x - 1 = -11 plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

lesantik [10]

Given

=> An equation = 9x-1=-11

To Find

=> The value of x

Step-by-step explanation:

9x-1 =-11

9x = -11+1

9x =-10

x =-10/9

-1.11

7 0

4 years ago

20 subtracted from three times a number is 6 more than the number

kompoz [17]

<h3>20 subtracted from three times a number is 6 more than the number. Then the number is 13</h3>

Solution:

Given statement is:

20 subtracted from three times a number is 6 more than the number

We can translate the sentence into algebraic expression

Let "a" be the unknown number

Then,

20 subtracted from three times "a" is 6 more than "a"

Which means,

3a - 20 = 6 + a

3a - a = 6 + 20

2a = 26

Divide both sides by 2

a = 13

Thus the number is 13

3 0

4 years ago

What’s the answer to this

8090 [49]

1. 30/120

2. 30/100

Have a gold day:)

6 0

3 years ago

Store A has a weekend sale. To the nearest hundredth of a percent, what discount must Store A offer for you to buy the system th

morpeh [17]

Because it's 30 percent, comes from the Latin per centum which literally means for every one hundred. So the discount is 30 for every one hundred.

7 0

4 years ago