The probability is 0.8997.
We will use a z-score to answer this question. z-scores are given by the formula

With our information, we have

Looking this up in a z-table (http://www.z-table.com) we see that the area to the left of this (everything less than, up to this value) is 0.8997.
Answer: I don't see what your talking about here, so I can't help you.
Step-by-step explanation:
Yes it is true:
(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x negative. Also, x terminates in quadrant 3 and 4. Hope this is helpful
Answer:
180
Step-by-step explanation:
It's 180 because 75% of 240 is 180.
We want to solve

Subtract 5 from each side.

Divide each side by 3.

Take natural logs of each side.

Divide each side by 2.
x = 0.9962
Answer: x = 0.996 (nearest thousanth)