Answer:
C.
Step-by-step explanation:
Answer A and D are definitely incorrect. Hope this helps Zoey. #Zoeyiscute:)
Answer:
837 miles
Step-by-step explanation:
Since they are on the same longitudinal line we can treat it just like a circle of radius 4000 miles, since the circles making of the longitude stay the same on a sphere. if they had the same latitude we would need an extra step of figuring out that particular circle's radius.
Now, on a circle of radius 4000 there is one point at 50 degrees on the circle and anther at 38 degrees, so now we find the arc length.
Arc length is basically taking a fraction of the circumference. if we went half way around the circle the arc length would be half the circumference. a tenth of the way makes a tenth of the circumference.
We go from 38 to 50 which is 12 degrees. out or 360 total this is 1/30 of the full circumference.
The circumference is 2*pi*r = 2*3.14*4000. so we want 1/30 of that, which means we divide it by 30.
2*3.14*4000/30 837.33 so to the nearest mile is just 837
Answer:
F
Step-by-step explanation:
A radius of 10 is a diameter of 2*10 or 20
The diameter is a line that goes through the center and touches both sides
Answer:
<h3>#6</h3>
Positive numbers less than 100 are 1 through 99.
- 1- digit = 3 numbers, zero excluded
- 2- digit = 3*4 = 12 numbers, zero excluded for the first digit
<u>Total:</u>
<u>Repetition is not allowed:</u>
- 1- digit = 3 numbers as above
- 2-digit = 3*3 = 9 numbers, minus one for the second digit
<u>Total:</u>
<h3>#7</h3>
abcd is the number.
- a = 2, then d = 4 or 0, b = 3 options, c = 2 options
- a = 3, no options
<u>Total:</u>
The question where asking to calculate how much work does the robot in your situation or problem do in climbing to the top of the well, base on that, I would say that the work done is 3720 N. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification