A quadratic equation in standard form is written az = but c, where a, b, and care real numbers and a is not zero.
A. True
B. False

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

there are infinitely many solutions.