Since approximately 68% of a (roughly) normal distribution falls within one standard deviation of the mean, that leaves 32% that falls outside, and by symmetry 16% should lie above one standard deviation of the mean.
A - bi would be the other complex zero.
When you take the sqrt when solving an equation you get a + and - solution.
We have that
cos A=0.25
so
A=arc cos (0.25)-------> using a calculator----> A=75.5225°
Round to the nearest hundredth-----> A=75.52²
the answer is
the option <span>75.52°</span>
Answer:
66 and 62
Step-by-step explanation:
128 divided by 2 gives you 64, and by taking two away from one number and giving it to the other, you're final answers are 66 and 62
