3 years ago

How can you determine if an angle is a right angle?

Mathematics

1 answer:

Aliun [14]3 years ago

8 0

Use pythagoras
in a triangle
h^2 = a^2 + b^2 if right angle.

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Determine the constant of varlation for the direct variation glven. Rvaries directly with S. When S is 16, R Is 80.

navik [9.2K]

Answer:

The constant of variation is 5.

Step-by-step explanation:

In direct variation, as y varies directly with x, the standard equation is

y = kx,

where k is the constant of variation.

In your case, we use R and S. R varies directly with S, so we have

R = kS

We know that when S = 16, R is 80, so we plug in those values and solve for k, the constant of variation.

R = kS

80 = k(16)

k = 80/16

k = 5

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What’s is 4 over 9 and negative 5 over 9

Lelechka [254]

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2 years ago

If 3* = 1 What will be the value of x?

zvonat [6]

Answer:

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Step-by-step explanation:

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3 years ago

Combine like terms - y + 9z - 16y - 25z + 4

alexandr402 [8]

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Step-by-step explanation:

1) Collect like terms.

$( - y - 16y) + (9z - 25z) + 4$

2) Simplify.

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