4 years ago

Find the common ratio for the geometric sequence defined by the formula: an=40(2–√)n−1

Mathematics

1 answer:

son4ous [18]4 years ago

8 0

B is the answer..........

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Josh currently bench presses 150lbs. He increases that amount by 10% a month for 3 months. About how much can he bench press now

Jlenok [28]

195 lbs.
150✖️.10=15
15✖️3=45
150+45=195

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3 years ago

In order to qualify for finals in racing event,a race car must achieve an average speed of 250km/hr on a track with a total leng

Kazeer [188]

Answer:

The minimum average speed needed in the second half is 270 km/hr

Step-by-step explanation

We can divide the track in two parts. For the first half of the track the average speed the car achieved was 230 km/hr and we need to make sure that the average speed of the full track is 250 km/hr. Then, we can calculate the average speed of the two parts of the track and force this to be equal to 250 km/hr. In equation, defining $v_2$ as the average speed of the second half: