Answer:
2.3% as a decimal is 0.023
Frequency describes the number of waves that pass a fixed place in a given amount of time.
The answer is 7 3/4 inches.
I noticed the word "train" in the problem and I knew I had to help you! :)
Answer:
8² = 4² + 5² - 2(4)(5) cos(P)
which is the third option
Explanation:
The general rule of cosine is:
a² = b² + c² - 2bc*cos(A)
In our triangle:
a is substituted by p = 8 cm
b is substituted by n = 4 cm
c is substituted by m = 5 cm
A is substituted by P which we want to find
Replace the variables in the general equation with the givens as follows:
p² = n² + m² - 2mn*cos(P)
8² = 4² + 5² - 2(4)(5) cos(P)
Hope this helps :)
It would be the second graph since the coefficient is negative
