Answer:
12 units³
Step-by-step explanation:
The required formula is V = (1/3)πr²h, where r is the radius and h is the height. Here we get:
V = (1/3)π(2)²(9) = (1/3)π(9)(4) = 12 units³
Step 1: Subtract 7 from both sides.<span><span><span><span>4x</span>+7</span>−7</span>=<span>23−7</span></span><span><span>4x</span>=16</span>Step 2: Divide both sides by 4.<span><span><span>4x</span>4</span>=<span>164</span></span><span>x=4</span>Answer:<span>x=<span>4</span></span>
Answer:
The first one
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
The area of the backyard pool to be resurfaced is equal to the area of the base plus the area of its four lateral sides.
so

where
B is the area of the base
P is the perimeter of the base
H is the depth of the pool
<em>Find the area of the base B</em>

substitute the given values

<em>Find the perimeter of the base P</em>

substitute the given values

we have

<em>Find the area of the backyard pool to be resurfaced</em>

substitute the values


Answer:
Equation B
Step-by-step explanation:
Equation B because:
it is 7x + 3
so for the first one, it's 7 + 3
the second one is 14 + 3
the third one is 21 + 3
the fourth one is 28 + 3
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