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g100num [7]
3 years ago
7

Evaluate each expression 1/7 +- 5/7

Mathematics
1 answer:
Zigmanuir [339]3 years ago
6 0

Answer:

-4/7

Step-by-step explanation:

the expression already has the common denominator so all you have to do is add the numerator (1 and -5) which is -4.

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Find the m∡B to the nearest tenth of a degree if cos B = 0.8926 and ∡B is an acute angle
mrs_skeptik [129]

Answer:

26.8°

Step-by-step explanation:

The cosine of an angle is the ratio of the adjacent side of the triangle in which the angle is formed to the hypotenuses side of the triangle. The cosine of the angle gives the ratio of these sides. However, the arc cosine of the ratio gives the angle measured in degrees.

If cos B = 0.8926

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Answer:

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