Answer:
x =-5± 2i sqrt(14)
Step-by-step explanation:
x^2 + 10x= -81
Take the coefficient of x and divide by 2
10/2 = 5
Square it
5^2 =25
add to each side
x^2 + 10x+25 = -81+25
( x+5) ^2 = -56
Take the square root of each side
sqrt(( x+5) ^2) =± sqrt(-56)
x+5 = ± sqrt(-1) sqrt(4*14)
x+5 =± i sqrt(4)sqrt(14)
x+5 =± i 2 sqrt(14)
Subtract 5 from each side
x+5-5 =-5± i 2 sqrt(14)
x =-5± 2i sqrt(14)
Answer:
D) 4176 unit cubes
Step-by-step explanation:
Length of the right rectangular prism inches
Width of the right rectangular prism inches
Height of the right rectangular prism inches
Then volume of the right rectangular prism = (Length)(Width)(Height)
cubic inches
Now volume of the small cubic prism
Then number of cubes that can fit into the right rectangular prism
Hence correct choice is D) 4176 unit cubes
Your answer is negative 2 I took the test and I got it
Answer:
The answer is 12.56 because when you divide 43.96 by 3 1/2 that is what you get.