4 years ago

What is the value of the expression below 7/2- 4.5x3+8

Mathematics

2 answers:

Ahat [919]4 years ago

7 0

I’m not so sure, but I got the answer, 8.5

kolezko [41]4 years ago

4 0

I’m not sure but I believe it is 10.5

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Assume cos T = .45 and cos W = .89, both T and W are positive, and both T and W determine a terminal point in Quadrant 4. which

emmainna [20.7K]

As both $T$ and $W$ determine terminal points in the fourth quadrant, we know that both angles fall between $270^\circ$ and $360^\circ$ . We also know that $0$ for $270$ , and that $\cos x$ is strictly increasing along this interval.

This means that the angle with the larger cosine value must be closer to having a measure of 360 degrees than the angle with the smaller cosine value, so $W>T$ .