The slope-point form:
The formula of a slope:
We have the points (7, -8) and (-4, 6). Substitute:
I multiplied, I converted the percentage to a decimal .42
Your answer should be 9.45.
X= 180 - 157
= 23
Therefore, X is 23 degrees. A straight line has an angle of 180 degrees, so subtracting the given angle would give you X.
Elite marathon race times improved from 5 to ~20 years, remained linear between ~20 and ~35 years, and started to increase at the age of ~35 years in a curvilinear manner with increasing age in both women and men. The sex difference in elite marathon race time increased non-linearly and was lowest at the age of ~49 years.
we have
we know that
so
the answer is in thousandths, because the denominator of the multiplication of the two fractions is one thousand
