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3 years ago

5

I need to know this please help

2 answers:

alex41 [277]3 years ago

4 0

Take another picture too blurry

jasenka [17]3 years ago

3 0

x + 72 = 180

y = 72 (vertical angles)

x = 108

z = 90 - 72

z = 18

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(c) If 2a + 7b = 11 and ab = 2, find the value of 4a2 + 49b2.

Mademuasel [1]

I hope this helps you

take both of sides paranthesis square

(2a+7b)^2=(11)^2

4a^2+2.4a.7b+49b^2=121

4a^2+49b^2+56.2=121

4a^2+49b^2=9

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Answer:

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Step-by-step explanation:

Attached is a picture of slope formula:

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Alenkasestr [34]

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jeka94

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