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4 years ago

Help Please

Mathematics

1 answer:

kodGreya [7K]4 years ago

7 0

<h3>Answer:</h3>

(x, y) = (6, -6)

<h3>Step-by-step explanation:</h3>

Divide the first equation by 2 to get equal and opposite coefficients for x.

... -2x -y = -6

Add this to the second equation to eliminate x.

... (2x +4y) +(-2x -y) = (-12) +(-6)

... 3y = -18 . . . . . . . . simplify

... y = -6 . . . . . . . . . . divide by 3

Substitute this vaue into any of the equations to find x. We choose to use the reduced first equation above.

... -2x -(-6) = -6

... -2x = -12 . . . . subtract 6

... x = 6 . . . . . . . divide by -2

The solution to the system is (x, y) = (6, -6).

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3 years ago

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3 years ago

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Answer:

h = 1.4

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Step-by-step explanation:

For each problem, remember the special triangle side ratios then use a proportion. To solve, isolate the variable.

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