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NeX [460]
3 years ago
13

Write a rule for the nth term of the sequence. Then find a20 37, 29, 21, 13,...

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
7 0
The rule is –8

the 20th term would be -83
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A circle with radius 4 inches is inscribed in an equilateral triangle. Find the area of the triangle.
LUCKY_DIMON [66]

The inscribed circle has its center at the point of intersection of the angle bisectors, which also happen to be the medians. Hence the altitude of the triangle is 3 times the radius, or 12 inches.

The side length of this triangle is 2/√3 times the altitude, so the area is

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3 years ago
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rosijanka [135]

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5 0
3 years ago
The temperature was 54 at 7:00 a.m. At 3:00 p.m. on the same day, the temperature was 82. What is the rate of change in temperat
vampirchik [111]

Answer:

The rate of change was 3.5 degrees / h.

Step-by-step explanation:

In order to calculate the rate of change we need to divide the variation of temperature by the variation of time. Since the time is given to us in a 12 h format (am/pm), we first need to convert it to 24 h. To do that we sum the time that is "pm" by 12, we have:

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The rate of change was 3.5 degrees / h.

4 0
3 years ago
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