(a. s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.)

A. 10

Step-by-step explanation:

To find a side length of similar triangles, write two equal ratios and set them equal in a proportion. The ratios should be written using the side lengths in each triangle which correspond to each other.

This proportion compares the short side of the largest triangle to its hypotenuse and compares the short side of the smallest triangle to its hypotenuse. To solve for x, cross multiply by multiplying numerator and denominator.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

the answer is y = 11.54

hope this : )