Answer:
x = -1 or x = 7
Step-by-step explanation:
From my understanding, y will be zero and you have to find the value of x.
Step 1: Middle term break
y = x² + 6x - 7
x² + 6x - 7 = 0
x² - 7x + x - 7 = 0
Step 2: Solve
x(x-7) + 1(x-7) = 0
(x+1) (x-7) = 0
x = -1 or x = 7
Therefore, the value of x is either -1 or 7.
!!
Answer:
X + Y could equal to 
or 
.
Step-by-step explanation:
2X = 5Y
Y = 
X = 
Hence, X + Y could equal to X + = or Y + = .
Hence, X + Y could equal to or .
Answer:
351.9 cubic in
Step-by-step explanation:
The volume of a cylinder is hr²π.
r is half the diameter, so 8/2 is 4.
Plug in your h and r and get:
7 * 4² * π
7 * 16 * π
112π
Multiply the π and you'll get about 351.9 cubic in
Answer:
-5.44
Step-by-step explanation:
multiply add negative sign
