2 years ago

Please help will mark brainliest

Mathematics

2 answers:

Sever21 [200]2 years ago

8 0

The answer is A because its a 90 degree angle and you need to add both sides to get the answer

kolbaska11 [484]2 years ago

3 0

It is A due to the fact that the over all angle is 90 degrease.

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Prove algebraically that (m + 2)2 – m 2 – 12 is always a multiple of 4

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Answer:

$(m + 2)^{2} - m^{2} - 12 = 4(m - 2)$

Step-by-step explanation:

Step 1:

Write the expression

$(m+2)^{2} - m^{2} - 12$

Step 2: Expand $(m + 2)^{2}$

$(m+2)^{2} - m^{2} - 12\\(m+2)(m+2) - m^{2} - 12\\m^{2} + 2m + 2m + 4 - m^{2} - 12$

Step 3: Collect similar terms

$m^{2} - m^{2} + 4m + 4 - 12\\4m - 8$

Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.

$Therefore\\4m - 8 = 4(m - 2)\\Hence,\\(m+2)^{2} - m^{2} - 12 is a multiply of 4 because the expression is equal to 4(m-2)$

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Citrus2011 [14]

y+2 = 3y-4 =

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6 =2y

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2y-3 = 2(3) - 3 = 3

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3 years ago

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Varvara68 [4.7K]

Answer:

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Step-by-step explanation:

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Step2247 [10]

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3 years ago

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