Answer:
45
Step-by-step explanation:
x÷3=15
=×*1/3=15
=x=15*3
x=45
Answer:
x ≈ - 5.32, x ≈ 1.32
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 )
Answer: A. X= -5, Y= 3, Z= 4
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
PEMDAS
4+372-320
376-320
56
The situation can be expressed with the following.
P=550-127