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vichka [17]
3 years ago
6

If 4a^2 = 144 then a is?

Mathematics
1 answer:
lilavasa [31]3 years ago
4 0
4a²=144
a²=144/4
a²=36
a=⁺₋√36
a=⁺₋6

Answer: we have two values for a; a=-6; and a=6

we check it out:
if a=-6
4(-6)²=4*36=144

if a=6
4(6)²=4*36=144
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Answer:

The table C correctly shows the ratio 8:1  for each grade

Step-by-step explanation:

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x ----> the number of students

y ----> the number of adults

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\frac{x}{y}=\frac{8}{1}

<u><em>Verify each table</em></u>

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\frac{96}{88}=\frac{8}{1}

Multiply in cross

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\frac{96}{104}=\frac{8}{1}

Multiply in cross

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\frac{96}{12}=\frac{8}{1}

Multiply in cross

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\frac{120}{15}=\frac{8}{1}

Multiply in cross

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Multiply in cross

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therefore

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Table D

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\frac{96}{11}=\frac{8}{1}

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