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Anna [14]
3 years ago
6

Please help and show ur work!

Mathematics
2 answers:
shepuryov [24]3 years ago
8 0

Step-by-step explanation:

let the missing side be "X"

Therefore :9² +x²=18²

81+x²=324

x²=324-81

x²=243

√x²=√243

x=15.6

grigory [225]3 years ago
5 0
15.6
18^2-9^2 will give you 243 and the square root of 243 is approximately 15.6
Using a^2+b^2=c^2
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Fred earns $16.50 an hour for overtime. He worked overtime on Monday
vredina [299]

Answer: He worked for 3 1/2 hours on Thursday

Step-by-step explanation:

I subtracted 66 from 123.75 and then i was left with 57.75 and then i just added 16.50 until i was close and then added the 8.25

5 0
3 years ago
The volume of a cube is 3375 cubic inches. what is the measure of each side of the cube
OlgaM077 [116]

Answer:

The measure of each side of the cube is

<h2>15 inches</h2>

Step-by-step explanation:

Since it's a cube all it's sides are equal

To find the length of each side we use the formula

Volume of a cube = l³

where l is the measure of one side

From the question

Volume = 3375 cubic inches

Substitute this value into the formula and solve for l

That's

<h3>{l}^{3}  = 3375</h3>

Find the cube root of both sides

That's

<h3>\sqrt[3]{ {l}^{3} }  =  \sqrt[3]{3375}</h3>

We have the final answer as

<h3>l = 15 inches</h3>

Hope this helps you

6 0
4 years ago
What is 1/7 divide by 6
arsen [322]
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3 0
4 years ago
What is the constant in the expression 9x +5y + 12
Ber [7]

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12

Step-by-step explanation:

6 0
3 years ago
Ann, Jim, and Miguel sent a total of 115
FromTheMoon [43]
Ann: 21
Jim: 31
Miguel: 63



Let’s start by finding Ann’s number.

a + (a + 10) + 3a = 115

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Now, just find the others’ numbers using Ann’s.

Jim sent ten more messages than Ann, and 21 + 10 = 31.

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3 0
3 years ago
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