Answer:
I believe it should be A
Step-by-step explanation:
Answer:
x=-7
Step-by-step explanation:
divide 12 on both sides and that equals -7
Answer:
x^2 + 5x - 104 = 0
Step-by-step explanation:
(x + 5)x = 104 Original equation
x^2 + 5x = 104 Distributive property
x^2 + 5x - 104 = 0 Subtract, make the right side equal to 0
If there are 272.5 rotations in a mile, and 5280 ft in a mile, then there are 5280 ft in 272.5 rotations. Divide 5280 by 272.5 gives us 19.4 ft/rotation.
That's the circumference of the wheel, and since c = πd, 19.4/π = d, d = 6.2 ft. The diameter of the wheel is how tall it is.
Does this help? Any questions?
Answer:
12
Step-by-step explanation:
you have to add everything