Solve the equation for x. 10(4x + 4) = 400 A) 2 B) 4 C) 9 D) 18

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?