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Marina CMI [18]
3 years ago
11

If m = 80° and m = 40°, then m 2 = A)20 B)40 C)60

Mathematics
1 answer:
RoseWind [281]3 years ago
5 0

Answer:

I think its 40 I could be wrong

Step-by-step explanation:

I had subtract 80 and 40

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the center of a circle is on the line y=2x and the line x=1 is tangent to the circle at (1,6).find the center and the radius
Julli [10]

The radius and the center of the circle are 4 units and (1,2), respectively

<h3>How to determine the center and the radius?</h3>

The center of the circle is on

y = 2x and x = 1

Substitute x = 1 in y = 2x

y = 2 * 1

Evaluate

y = 2

This means that the center is

Center = (1, 2)

Also, we have the point of tangency to be:

(x, y) = (1, 6)

This point and the center have the same x-coordinate.

So, the distance between this point and the center is

d = 6 - 2

d = 4

This represents the radius

Hence, the radius and the center of the circle are 4 units and (1,2), respectively

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1 year ago
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kenny6666 [7]

Answer:

Step-by-step explanation:

7 0
3 years ago
An equallon for the depreciation of car is given by y = A * (1 - t) ^ t where y = current value of the car, A = original cost, r
Norma-Jean [14]

Answer: 3 years

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3 years ago
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3 years ago
The table below shows the surface area y, in square feet, of a shrinking lake in x days:
andreyandreev [35.5K]
Based on the data, the most likely correlation coefficient would be -1.
The slope between 20 and 30 days is -1, and it represents the change in the surface area of the lake per day.
The data represents correlation, not causation.

Since the data would form a perfectly straight line through the points, the correlation coefficient would be -1 for a perfect decreasing fit.
To find the slope, find the change in the surface area between those days, the change in the days, and write it as surface area/days:  80-90=-10; 30-20=10; -10/10=-1
This is not causation because there could be lurking variables we cannot see.
6 0
3 years ago
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