4 years ago

Solve the inequality. y−2x ≤ −3

Mathematics

1 answer:

inna [77]4 years ago

4 0

For x, the answer is x >= -(3 - y)/2, for y it's y <= 2x -3.

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6. Find QR, if area and altitude PS of ∆PQR are given<br> ar(∆PQR) = 180 cm2, PS = 15

Slav-nsk [51]

Given:

Area and altitude PS of ∆PQR are ar(∆PQR) = 180cm² and PS = 15.

To find:

The measure of side QR.

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According to the given information, PS is an altitude of ∆PQR. It means QR is the base of ∆PQR.

We know that, the area of a triangle is

$Area=\dfrac{1}{2}\times Base\times Height$

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Substituting the given values, we get

$180=\dfrac{1}{2}\times QR\times 15$

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