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Rzqust [24]
3 years ago
6

Sequence 1: –10, 20, – 40, 80, ...

Mathematics
2 answers:
kondaur [170]3 years ago
5 0
There both have even numbers being add to them
lorasvet [3.4K]3 years ago
4 0

Sequence one is geometric since you are <u>multiplying</u> each number by a certain value (-2). Sequence 2 is arithmetic since you are <u>adding</u> each number by -20

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a trapezoid with base measure of 23 km and 29km an area of 390km . find the height of the trapezoid.
cupoosta [38]
Hello!

To find the area of a trapezoid you use the equation

A =  \frac{a+b}{2} h

Put in the values you know

390 =  \frac{23+29}{2} h

Add

390 = \frac{52}{2} h

Divide

390 = 26 * h

Divide both sides by 26

15 = h

The answer is 15km

Hope this helps!
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sdas [7]

5-1/10

Step-by-step explanation:

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2 years ago
Why is it necessary to choose a single frame of reference when measuring motion?
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