If the number is y then the inequality is
twice the difference of y and 7=2(y-7)
at most- 20=less than or equal to
2(y-7)≤-20
They could be: 12:14, 18:21, 24:28
Step-by-step explanation:
(0.9, -0.5) is the answer
For this case we have the following interval:
The equivalent expression for this interval is given by:
Therefore, we have the following inequations:
From where, we can conclude:
All real numbers greater than -6 and less than 7
Answer:
An expression in words that describes the set of numbers given by the interval (-6, 7) is:
A. All real numbers greater than -6 and less than 7
Ok so the formula for the volume of a sphere is
r is the radius, which is half the diameter. Since the diameter of the whole sphere is 18 the radius would be half of that, which is 9. If you plug 9 into the formula you get 3052.08in.cubed. Now you must find the volume of the smaller core, the diameter of the core is 3, so the radius is 1.5 and if you plug that into the formula you get 14.13in.cubed. Since you're finding only the volume of the outside layer, you would subtract the volume of the core from the whole sphere, so 3052.08-14.13=3037.95
Your answer is 3037.95in.cubed