Answer: x=5 or x=−13
Step-by-step explanation:
8x−65=−x2
8x−65−(−x2)=−x2−(−x2)
x2+8x−65=0
(x−5)(x+13)=0
x−5=0 or x+13=0
x=5 or x=−13
Answer:
x = - 3
Step-by-step explanation:
4 - (x + 1) = 6
- (x + 1) = 6 - 4
-x - 1 = 6 - 4
-x - 1 = 2
- x = 2 + 1
- x = 3
x = - 3
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The surface area of the cube is 24 feet.
Answer:
55
Step-by-step explanation:
sinx = opposite/hypotenuse = 9/11
x = arcsin(9/11) = 54.9031987, which is about 55, degrees
