Answer:
7 1/30
Step-by-step explanation:
4 1/5 + 2 5/6
Get a common denominator of 30
4 1/4 = 4 1/5*6/6 = 4 6/30
2 5/6 *5/5 = 2 25/30
4 6/30 + 2 25/30
6 31/30
Rewriting
6 30/30 + 1/30
6 + 1 + 1/30
7 1/30
You use a system of equations to solve this.
x will be one integer and y will be the other.
2y - 7 = x
x^2 + y^2 = 433
You can plug (2y - 7) in for x in the second equation.
(2y - 7)^2 + y^2 = 433
4y^2 - 28y + 49 + y^2 = 433
5y^2 - 28y -384 = 0
y = 12 or -32/5
It has to be 12 since -32/5 is not an integer.
Plug 12 in for y to get x.
2(12) - 7 = x
x = 17
The integers are 12 and 17.
Answer:
SA = 384 in ^2
Step-by-step explanation:
The surface area of a cube is given by
SA = 6 S ^2 where s is the side length
SA = 6 * (8) ^2
SA = 6 * 64
SA = 384 in ^2
Answer:
Step-by-step explanation:
