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2 years ago

What does 9a^2 + 2b^2 if a=4 and b=7?

Mathematics

2 answers:

AleksAgata [21]2 years ago

7 0

Answer:

242

Step-by-step explanation:

zhuklara [117]2 years ago

6 0

Answer:

242

Step-by-step explanation:

Given

9a² + 2b² ← substitute a = 4 and b = 7

= 9(4)² + 2(7)²

= 9(16) + 2(49)

= 144 + 98

= 242

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Zielflug [23.3K]

Answer:

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Step-by-step explanation:

step 1

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we know that

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we have

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substitute and solve for r

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step 2

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we know that

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substitute

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step 3

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we know that

$2\pi\ radians$ subtends the complete circle of area $6.25\pi\ in^{2}$

by proportion

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Step-by-step explanation:

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