Which of the following is a factor of 100b^2-144a^4? a. 10b-12a b. 10b+12a c. 10b+12a^2 d. 50b+72a^2

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7