the value of cos 15 is √3+1/2√2
explanation
cos (45-30)
=cos45*cos30+sin45*sin30
=1/√2 * √3/2 + 1/√2 * 1/2
=√6/4 + √2/4
=√6 + √2/4
=√3+1/2√2
Answer:
Following are the solution to the question:
Step-by-step explanation:

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z score for will be:

using excel method to calculate the value.
Answer:
The slope of a line would be your m in the equation. So, when you have your y=mx+b you would have the slop