3 years ago

Evaluate 9x + 3xy − 2 for x = 3 and y = −3.

Mathematics

1 answer:

klemol [59]3 years ago

5 0

Answer:

- 2

Step-by-step explanation:

Given

9x + 3xy - 2

Substitute x = 3 and y = - 3 into the expression

= 9(3) + 3(3)(- 3) - 2

= 27 - 27 - 2 = - 2

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<em><u>Hope this helps.</u></em>

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3 years ago

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3 years ago

Read 2 more answers

An airplane started at point K, travelled 560 miles to point L, adjusted its route and travelled another 575 miles to point M. I

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Answer:

Step-by-step explanation:

Using the cosine theorem:

$c^{2} =a^{2} +b^{2} -abcos\beta$

$952^{2} =560^{2} +575^{2} -560*575cos\beta$

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