Answer: x=-7 and x=9
Asummung you are solving for x
x+7=0
x=-7
-x+9=0
-x=-9
x=9
Answer:
Step-by-step explanation
Answer=1,170
You would have to multiply 3 by 936 to get 2,808 knowing its 936 multiply it by 1.25 which would give you the answer of 1,170
Answer: The side of the square will be 3 cm.
Step-by-step explanation:
When squares of equal size of side x, are cut from the four corners, we are left with the following dimensions for the cuboid box.
l= 30-2x
b = 14-2x
h= x
Hence, the volume of the cuboid will be ,
V = lbh
= (30-2x)(14-2x)x
Since this volume should be the largest possible, then differentiating volume with x should be equal to zero.
Therefore, 

solving we get, x = 3, x = 
We can omit x =
because 14 - 2x < 0 , which is not possible.
Therefore, x=3.
Answer:
base x height / 2
I'm guessing 10 and 17 are the base and height
10 x 17 = 170
170 / 2 = 85
85 is the area
Hope this helps
Step-by-step explanation: