James is designing a coffee table with legs that cross each other at right angles. If the equation that models one leg is y = –3/4x + 1 (3/4 means 3 over 4), and the leg that crosses it hits the table top at the point (12, 9), what is the equation for the other leg, in point-slope form? A. y = 4/3x – 7
B. y=−4/3x+25
C. y−9=4/3(x−12)
D. y−9=−4/3(x−12)

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

3

step-by-step explanation: