Precalculus Review Test_Saballe

Find the next three terms in this sequence: 5120, 1280, 320, 80...

• -160, -400, -640

• 20, 5, 1.25

• 40, 20, 10

• 76, 72, 68

What is the sum of the finite geometric series, 1+4+16+64+... +4096 ?

• 5,461

• 2,073.3

• 25,347

• 349,525

Suppose you drop a tennis ball from a height of 15 feet . After the ball hits the floor, it rebounds to 85% of its previous height . How high the ball rebound after its third bounce? Round to the nearest tenth.

• 9.2 feet

• 10.8 feet

• 7.8 feet

• 1.9 feet

What is the sum of the first 5 numbers in the series 1+2+4+8+16+32+...?

• 16

• 63

• 32

• 31

The first term of a geometric sequence is -2 and the common ratio is 3. What is the 12th term of the sequence?

• -1,062,882

• -6144

• -354,294

• 12288

The sum of the first 10 terms of an arithmetic progression is 40. If the first term is -5, then what is the common difference?

• -3

• -1

• 2

• 4

Find the 17th term of this sequence. an=(-1)^n-1 ⋅ n^2

• -289

• 265

• 289

• -256

A small hole in a rubberized container allows 1/20 of the air to escape each second. What percent of the air will remain in the container 6 seconds after the opening of the hole?

• 30%

• 50%

• 60%

• 70%

The population of Leyte National High School at the beginning of year 2020 is 10,500. If it constantly increases by 3% every year, what will be the approximate population at the end of the year 2023?

• 11, 445

• 10, 815

• 11, 139

• 12, 102

A man repays an amount of ₱3250 by paying ₱20 in the first month and then increases the payment by ₱15 per month. How long will it take him to clear the amount?

• 15 months

• 20 months

• 31 months

• 40 months