3 years ago

Solve the system of linear equations by multiplying. 7x-2y=22 3x+9y=39

Mathematics

1 answer:

notka56 [123]3 years ago

5 0

Answer: The answer (4,3) or x=4 and y=3

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Step-by-step explanation:

Given

$\frac{1}{2}x + 4$ - Expression 1

$x + 6 - \frac{1}{2}x - 2$ -- - Expression 2

Required

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$\frac{1}{2} * 2 + 4$

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<em>Expression 2</em>

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Please answer the question on the attachment <3

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Answer:

Step-by-step explanation:

hypotenuse (h) = 9.4

base(b) = 1.9

cos x = b/h

cos x = 1.9/9.4

x = cos ^-1 ( 1.9/9.4)

x = 78.3°

hope it will help :)

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