A) 200,000 + 40,000 + 4,000 + 300 + 6
b) 70,000,000 + 7,000,000 + 70,000+ 9,000 + 100 + 1
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.
The formula for an arc length is, <span>S = r<span>θ, where r is radius and <span><span>θ is theta. Theta must be in radians (which it is because you stated theta = 4 pi / 7). Multiply 5 and 4 pi / 7, the arc length will be 20 pi / 7. It will be 8.97 when you compute this into a calculator (rounded to the nearest hundredth). Found this helpful? Give it a Brainiest award.</span></span></span></span>
Answer:
43%
Step-by-step explanation: