question

The surface area of an oil spill gets 115% larger every day, represented by the function s(x) = (1.15)x β 1. On the first day, it covered an area of 43 square meters. Which function would be used to find the area of the oil spill on the 23rd day?

answer

(NOT) s(x) = (1.15)43 β 1
(MAYBE) S(x) = 43 (1.15)^(x-1)

question

What is the sum of a 54-term arithmetic sequence where the first term is 6 and the last term is 377?

answer

(NOT) 10,388
(MAYBE) 10,341

question

Find the sum of a finite geometric sequence from n = 1 to n = 8, using the expression β2(3)n β 1.

answer

(NOT) 1,083
(MAYBE) -6,560

question

What is the sum of the arithmetic sequence 151, 137, 123, ..., if there are 26 terms?

answer

(NOT) -650
(MAYBE) -624

question

Every day, there are 2 times more likes on an internet video of a bird which is modeled by the function c(n) = (2)n β 1, where n is the number of days since the video posted. On the first day, there were 122 likes. What is the function that shows the number of likes each day?

answer

c(n) = 122(2)n β 1

question

Which sequence is modeled by the graph below?
coordinate plane showing the points 1, 6; 2, 0.6; and 3, 0.06

answer

(NOT) an = one tenth(6)n β 1
(MAYBE) an = 6(β10)n β 1

question

What is the 30th term of the arithmetic series 3, 7, 11, ...?

answer

(NOT) 118

question

Find the 10th partial sum of the summation of negative 5i plus 2, from i equals 1 to infinity.

answer

(NOT) 240

question

What is the common difference for the sequence shown below?
coordinate plane showing the points 3, 4; 1, 3; and negative 1, 2

answer

1/2

question

Which sequence is modeled by the graph below?
coordinate plane showing the points 1, 1; 2, 3; 3, 9

answer

(NOT) an = (3)(n β 1)

question

Find the sum of the summation of 2 i minus 12, from i equals 7 to 16.

answer

(NOT) 220

question

A new video game is expected to sell 120 copies the first hour at a local game store. After that, the sales will follow the function s(x) = 15(x β 1) where x is the number of hours. What is the function that shows total sales, including the first hour?

answer

s(x) = 120 + 15(x β 1)

question

What is the 7th term of the geometric sequence where a1 = β625 and a2 = 125?

answer

β0.04

question

What is the sum of a 7-term geometric series if the first term is β6, the last term is β24,576, and the common ratio is 4?

answer

(NOT) 19,662
(MAYBE) -32,766

question

Samantha loves to download new music. She originally had 52 songs but plans to purchase 2 new songs each week. She wants to know how many songs she will have after 93 weeks. Which equation should she use?

answer

(NOT) a93 = 93 + 2(52 β 1)
(MAYBE) a93 = 52 + 2(93 + 1)

question

What is the 32nd term of the arithmetic sequence where a1 = 15 and a13= β57?

answer

(NOT) -165

question

The number of visitors to a park is expected to follow the function v(x) = 7(x β 1), where x is the number of days since opening. On the first day, there will be a ceremony with 39 people in attendance. What is the function that shows total visitors, including the ceremony?

answer

(NOT) c(x) = 7(x β 1) β 39
(MAYBE) (x) = v(x) +39 = 7(x-1) +39

question

Find the sum of a finite arithmetic sequence from n = 1 to n = 10, using the expression 3n β 8.

answer

(NOT) 116

question

Given the arithmetic sequence an = β5 + 3(n β 1), what is the domain for n?

answer

(NOT) All intergers
(MAYBE) All integers where n β₯ 0

question

The total number of fungal spores can be found using an infinite geometric series where a1 = 10 and the common ratio is 3. Find the sum of this infinite series that will be the upper limit of the fungal spores.

answer

(NOT) 1,485

question

Roberto has been studying a type of bacteria that doubles every month. Originally, there were 3 bacterial cells. He wants to know how many there will be after 43 months. Which equation should he use?

answer

(NOT) a43 = 3(2)43

question

What is the sum of a 6-term geometric series if the first term is 24 and the last term is 1,417,176?

answer

(NOT) 1,395,030
(MAYBE) 1594320

question

What is the sum of the geometric sequence 1, β6, 36, ... if there are 6 terms?

answer

(NOT) 6,665

question

What is the sum of the geometric sequence 2, 10, 50, ... if there are 8 terms?

answer

(NOT) 58,593

question

The population of a type of local frog can be found using an infinite geometric series where a1 = 84 and the common ratio is one fifth. Find the sum of this infinite series that will be the upper limit of this population.

answer

(NOT) 425

question

Given the geometric sequence an = 3(β4)n β 1, which of the following values for n lies in the appropriate domain for n?

answer

(NOT) n = 0

question

What is the average rate of change for the sequence shown below?
coordinate plane showing the points 1, 4; 2, 2.5; 3, 1; and 4, negative 0.5

answer

(NOT) 2

question

What is the 6th term of the geometric sequence where a1 = 128 and a3 = 8?

answer

0.125

question

Given the geometric sequence where a1 = 1 and the common ratio is 6, what is the domain for n?

answer

(NOT) All intergers

question

What is the 6th term of the geometric sequence 4, β20, 100, ...?

answer

(NOT) 62,500

question

What is the 32nd term of the arithmetic sequence where a1 = β34 and a9 = β122?

answer

(NOT) -386

question

Given the arithmetic sequence an = β3 + 9(n β 1), what is the domain for n?

answer

(NOT) All intergers
(MAYBE) All integers where n β₯ 1

question

The surface area of an oil spill gets 131% larger every day, represented by the function s(x) = (1.31)x β 1. On the first day, it covered an area of 21 square meters. Which function would be used to find the area of the oil spill on the 47th day?

answer

S(x) = 21(1.31)^46

question

Peggy has been studying a type of bacteria that triples every month. Originally, there were 2 bacterial cells. She wants to know how many there will be after 24 months. Which equation should she use?

answer

a24 = 2(3)24 β 1

question

Every day, there are 4 times more likes on an internet video of a horse which is modeled by the function c(n) = (4)n β 1, where n is the number of days since the video posted. On the first day, there were 100 likes. What is the function that shows the number of likes each day?

answer

(n) = 100(4)^(n - 1)

question

Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression β4(6)n β 1.

answer

-223,948

question

The total number of fungal spores can be found using an infinite geometric series where a1 = 9 and the common ratio is 5. Find the sum of this infinite series that will be the upper limit of the fungal spores.

answer

The series is divergent

question

Given the geometric sequence where a1 = 2 and the common ratio is 8, what is the domain for n?

answer

All intergers where n > 0

question

What is the sum of the arithmetic sequence 153, 139, 125, ..., if there are 22 terms?

answer

132

question

What is the average rate of change for the sequence shown below?
coordinate plane showing the points negative 1, 4. 1, 3. 3, 2. 5, 1.

answer

-1/2

question

What is the common difference for the sequence shown below?
coordinate plane showing the points 1, 4; 4, 3; and 7, 2

answer

-1/3

question

What is the 32nd term of the arithmetic sequence where a1 = 14 and a13 = β58?

answer

-172

question

What is the 32nd term of the arithmetic sequence where a1 = β32 and a9 = β120?

answer

-373

question

The population of a type of local bass can be found using an infinite geometric series where a1 = 94 and the common ratio is one third. Find the sum of this infinite series that will be the upper limit of this population

answer

232

question

Which sequence is modeled by the graph below?
coordinate plane showing the points 1, 1; 2, 2; 3, 4; and 4, 8

answer

n = 1*2^(n-1)

question

What is the sum of the geometric sequence 3, 15, 75, ... if there are 7 terms?

answer

58,593

question

What is the sum of a 58-term arithmetic sequence where the first term is 6 and the last term is 405?

answer

11919

question

What is the 30th term of the arithmetic series 3, 7, 11, ...?

answer

119

question

Which sequence is modeled by the graph below?
coordinate plane showing the points 1, 3; 2, 0.6; and 3, 0.12

answer

3(1/5)^n-1

question

A new video game is expected to sell 102 copies the first hour at a local game store. After that, the sales will follow the function s(x) = 11(x β 1) where x is the number of hours. What is the function that shows total sales, including the first hour?

answer

102 + 11(x β 1)

question

What is the 7th term of the geometric sequence 4, β20, 100, ...?

answer

62,500

question

Find the sum of the summation of 2 i minus 9, from i equals 3 to 10.

answer

32

question

What is the 8th term of the geometric sequence where a1 = 256 and a3 = 16?

answer

0.015625

question

What is the 7th term of the geometric sequence where a1 = 625 and a2 = β125?

answer

-0.2

question

Given the geometric sequence an = 4(6)n β 1, which of the following values for n lies in the appropriate domain for n?

answer

n = 1

question

What is the sum of the geometric sequence β1, 6, β36, ... if there are 7 terms?

answer

-39,991

question

Find the sum of a finite arithmetic sequence from n = 1 to n = 15, using the expression 2n + 5.

answer

315

question

Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.

answer

-220