Answer:
b. 22
Step-by-step explanation:
7 x 3.14 = 21.95
( you have to buy 22 because you connot buy half of one so
you have to round up)
21.95 - 22
Answer:
third option
Step-by-step explanation:
Given
x² + 4x - 4 = 0 ( add 4 to both sides )
x² + 4x = 4
Using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 4 + 4, that is
(x + 2)² = 8 ( take the square root of both sides )
x + 2 = ±
= ± 2
( subtract 2 from both sides )
x = - 2 ± 2
Answer:
linear
Step-by-step explanation:
use Desmos can help A LOT
Answer:
10*-3= -30
Step-by-step explanation:
10*-3= 5*-8