Answer:
- 0.25|h -1600| -400
- 1000
- 2200
Step-by-step explanation:
Once again, you can choose the correct equation by finding the one that gives d=0 for h=0. (Note that the problem statement requires the independent variable to be h, not x.)
Then you can use that equation to find h for d=-250:
-250 = 0.25|h -1600| -400
150 = 0.25|h -1600|
600 = |h -1600|
This resolves to two equations:
- -600 = h -1600 . . . ⇒ . . . h = 1000
- 600 = h -1600 . . . ⇒ . . . h = 2200
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Or, you can realize the distance from the west end is 4 times the depth. At a depth of 250 ft, that distance is h=1000 ft. That is 600 ft from the center, so 1200 ft from the same depth on the other side of the crater, which is at h=2200 ft.
400 / 10 = 40.
40
X 9
= 360
In a group of 400 smokers, about 360 of them started before they reached their 21st birthday.
Answer:
V = 21.195 in ^3
Step-by-step explanation:
The volume of a cylinder is
V = pi * r^2 h
We know the diameter not the radius
d = 2r
3 = 2r
Divide by 2
3/2 =r
We know pi = 3.14 and h =3
V = 3.14 * (3/2) ^2 *3
V = 3.14 * 9/4 *4
V = 21.195 in ^3
For a line to be parallel, the slope has to be the same(1/3) only its coordonate on the y axis (b) changes.
Therefore the new equation will be y=1/3x+b
To find be, tou have to isolate it after inputting the new coordinates (-9,4)
(4)=1/3(-9)+b
4=-3+b
7=b
Therefore, the new equation is
y=1/3x+7