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DiKsa [7]
3 years ago
10

The radius of a sphere is 18 feet. What is the surface area of the sphere? Express the answer in terms of pi. Recall the formula

SA = 4pi 2
Mathematics
2 answers:
Vinil7 [7]3 years ago
4 0

Answer: 1296π

Step-by-step explanation:

To find the surface are if a square, we have to use the formula:

= 4πr²

= 4 × π × 18²

= 4 × π × 324

= 1296π

Therefore, the surface area of the sphere is 1296π

Ivanshal [37]3 years ago
4 0

Answer:

C

Step-by-step explanation:

I did the test right

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3 years ago
X subtract 9 equals 3 / 5X
Korvikt [17]

Answer:

x=22\frac{1}{2}=22.5

Step-by-step explanation:

x-9=\frac{3}{5}x

  • First, lets get rid of the fraction. I did this by multiplying both sides by 5.

5(x-9)=5(\frac{3}{5}x)\\5x-45=\frac{5}{1} *\frac{3}{5}x\\5x-45=\frac{15}{5}x\\5x-45=3x

  • We want to isolate x on one side of this equation. Let's put any values with x on one side of the equation, and normal integers on the other.

2x=45

  • Divide both sides by 2.

x=\frac{45}{2}

  • If your teacher wants you to leave your final answer as an improper fraction, your final answer is this. If they want it to be a mixed number or decimal, your final answer will be:

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7 0
3 years ago
Which is greater <br><br>515_5.05​
Elis [28]

Answer:

515

Step-by-step explanation:

it's self-explanatory

7 0
3 years ago
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Can someone answer this for me? ty
Fiesta28 [93]

Answer:

The intercepts are the locations where the line touches the x-axis and y-axis.

This question is asking for the coordinates for each of those locations, which would be:

(3, 0) for x-intercept location

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The easy way to remember how to find coordinates is that the x is 'running', and the y is 'jumping', so the x coordinate comes before the y coordinate when finding sets like the ones above.

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3 years ago
Find the value of each variable in the diagram given that a ∥ b.
Alika [10]

The values are as follows:

z=50

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<h3>What is parallel lines?</h3>

Parallel lines are lines in a plane that are always the same distance apart.

z+130= 180   (Linear pair)

z=50

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y=15

w+x+2y=180  (Linear pair)

w+ 100 + 30 = 180

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Learn more parallel lines here:

brainly.com/question/16701300

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