Answer:
D) Negative, because the product (8)(−23) is negative and the product (−21)( −29) is positive, and the product of a negative number and a positive number is a negative number
Step-by-step explanation:
Answer:
The margin of error is multiplied the square root of 2 (I got it right on my test)
Answer:
B
Step-by-step explanation:
Given
x² + 14x = 51
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(7)x + 49 = 51 + 49 , that is
(x + 7)² = 100 ( take the square root of both sides )
x + 7 = ± = ± 10 ( subtract 7 from both sides )
x = - 7 ± 10
Thus
x = - 7 - 10 = - 17
x = - 7 + 10 = 3
Answer:
x ≤ 8
Step-by-step explanation:
"Each" = variable
5 dollar each => 5x
You can spend 40 exactly or less, exactly => equal to
5x ≤ 40
5x/5 ≤ 40/5 (Divide both sides by 5)
x ≤ 5
I think the answer could possibly be a