Answer:
-4x3.5=-14
Step-by-step explanation:
divide -14 by -4 wich = 3.5
Answer:
x ≈ 1.32, x ≈ - 5.32
Step-by-step explanation:
Given
x² + 4x - 7 = 0 ( add 7 to both sides )
x² + 4x = 7
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 7 + 4
(x + 2)² = 11 ( take the square root of both sides )
x + 2 = ±
( subtract 2 from both sides )
x = - 2 ± 
Thus
x = - 2 -
≈ - 5.32 ( to 2 dec. places )
x = - 2 +
≈ 1.32 ( to 2 dec. places )
Sunscreen approx. 40.6 cents an oz
Lotion 6.4 cents an oz
Answer:
Hi
Step-by-step explanation:
So
Answer:
90? He score for the class fast and easy