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2 years ago

Constant of variation

Mathematics

1 answer:

Zinaida [17]2 years ago

8 0

Answer:

The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities.

Step-by-step explanation:

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Klio2033 [76]

If you are looking for the third angle it is 90 degrees

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2 years ago

URGENT MATH HELP BRAINLIEST

Lelechka [254]

Answer:

Step-by-step explanation:

a. This is a right triangle with two sides and one angle given.

-We apply Sine Rule to find the angle B:

$\frac{a}{Sin \ A}=\frac{b}{Sin \ B}=\frac{b}{Sin \ C}$

-The sides given are 10and 17 and the right angle 90°

$\frac{17}{Sin \ 90 \textdegree}=\frac{10}{Sin \ m\angle B}\\\\m\angle B=Sin^{-1}\frac{10}{(17/Sin \ 90\textdegree)}\\\\=36.03\textdegree$

Hence the angle B is 36.03°

b.We again use the sine rule to obtain the unknown angle w:

-15 corresponds to 90° and 9 corresponds to w°

$\frac{a}{Sin \ a}=\frac{b}{Sin \ B}\\\\\frac{15}{Sin \ 90\textdegree}=\frac{9}{Sin \ w\textdegree}\\\\\\\\w=Sin^{-1}(\frac{9}{15}), \ \ Sin \ 90\textdegree=1\\\\=36.87\textdegree$

Hence, the measure of w is 36.87°

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2 years ago

What is 870 rounded to nearest 10?

AlexFokin [52]

Answer: The answer is 870

If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.

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2 years ago

The APR can be used to compare different loans.<br><br> True<br> False

hichkok12 [17]

The answer to this question is true.

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3 years ago

Read 2 more answers

PLEASE HELP I ONLY HAVE AN HOUR

skelet666 [1.2K]

Answer:

A. I can't quite see the question, but I'm pretty sure it's A

Step-by-step explanation:

Sin(A) = 1/3

Sin^2(A) + Cos^2(A) = 1

(1/3)^2 + cos^2(A) = 1

1/9 + cos^2(A) = 1

cos^2(A) = 1 - 1/9

cos^2(A) = 8/9

cos(A) = √(8/9)

√8 = √(2 * 2 * 2) = 2√2

√9 = 3

cos(A) = 2√2/3

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2 years ago