For the volume you have to cube (hence the name) the edge length:
(2.7)³ = 19.683 cm³
This inequality should be written like this -
7/10x + 14 < 49
The answer is A I believe
Answer:
Step-by-step explanation:
Since they are similar we can say
?/15=6/3
?=15(6)/3
?=30
Answer:
x = - 7, x = 1
Step-by-step explanation:
Given
x² + 6x = 7
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(3)x + 9 = 7 + 9
(x + 3)² = 16 ( take the square root of both sides )
x + 3 = ±
= ± 4 ( subtract 3 from both sides )
x = - 3 ± 4
x = - 3 - 4 = - 7
x = - 3 + 4 = 1
Solution set = { - 7, 1 }