Answer:
(-1,0)
Step-by-step explanation:
Plug it into desmos graphing calculator exactly how it is.
Try this option ↓
Step-by-step explanation:
1) according to the condition two angles are equal, then two sides are equal also, it means
2) √x+4=√(5x+4);
3) the 'x' can be calculated if to solve this equation:
;
4) finally, answer: 9.
Answer:
+ 1
Step-by-step explanation:
Given
x² + 2x = 9
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(1)x + 1² = 9 + 1²
(x + 1)² = 10
He will earn $427.50 because $4.27 times 90 equals $427.50