2 years ago

In △ABC, ∠C is a right angle and sinB=725.

Mathematics

1 answer:

scoundrel [369]2 years ago

8 0

9514 1404 393

Answer:

A 7/25

Step-by-step explanation:

The cosine of an angle is equal to the sine of its complement. In a right triangle, angle A is the complement of angle B. So, ...

cos(A) = sin(B)

cos(A) = 7/25

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Alika [10]

Answer:

The answer is option D.

Step-by-step explanation:

(4a - b)(2a - 3b)

Expand the terms

We have

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Which is

8a² - 14ab + 3b²

That's option D.

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Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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RUDIKE [14]

Answer:

A. -1≤x≤6

Step-by-step explanation:

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3 years ago