Chapter 9
College Algebra · 442 exercises
Problem 27
For the following exercises, one card is drawn from a standard deck of 52 cards. Find the probability of drawing the following: A two
4 step solution
Problem 27
Use the following scenario. Javier makes monthly deposits into a savings account. He opened the account with an initial deposit of \(\$ 50 .\) Each month thereafter he increased the previous deposit amount by \(\$ 20\). Graph the arithmetic series showing the monthly sums of one year of Javier's deposits.
4 step solution
Problem 27
For the following exercises, find the number of subsets in each given set. A set containing 5 distinct numbers, 4 distinct letters, and 3 distinct symbols
4 step solution
Problem 27
For the following exercises, use the Binomial Theorem to write the first three terms of each binomial. $$ (3 a+b)^{20} $$
6 step solution
Problem 27
For the following exercises, write a recursive formula for each geometric sequence. $$ a_{n}=\\{10,-3,0.9,-0.27, \ldots\\} $$
3 step solution
Problem 27
For the following exercises, use the recursive formula to write the first five terms of the arithmetic sequence. $$ a_{1}=-19 ; a_{n}=a_{n-1}-1.4 $$
5 step solution
Problem 27
For the following exercises, write the first five terms of the sequence. $$ a_{1}=3, a_{n}=(-3) a_{n-1} $$
5 step solution
Problem 27
For the following exercises, use the following scenario. Javier makes monthly deposits into a savings account. He opened the account with an initial deposit of \(\$ 50 .\) Each month thereafter he increased the previous deposit amount by \(\mathrm{s} 20 .\) Graph the arithmetic series showing the monthly sums of one year of Javier’s deposits.
4 step solution
Problem 27
Write the first five terms of the sequence. $$a_{1}=3, a_{n}=(-3) a_{n-1}$$
5 step solution
Problem 28
For the following exercises, one card is drawn from a standard deck of 52 cards. Find the probability of drawing the following: Six or seven
4 step solution
Problem 28
Use the geometric series \(\sum_{k=1}^{\infty}\left(\frac{1}{2}\right)^{k}\). Graph the first 7 partial sums of the series.
4 step solution
Problem 28
For the following exercises, find the number of subsets in each given set. The set of even numbers from 2 to 28
4 step solution
Problem 28
For the following exercises, use the Binomial Theorem to write the first three terms of each binomial. $$ (2 a+4 b)^{7} $$
5 step solution
Problem 28
For the following exercises, write a recursive formula for each geometric sequence. $$ a_{n}=\\{0.61,1.83,5.49,16.47, \ldots\\} $$
2 step solution
Problem 28
For the following exercises, write the first five terms of the sequence. $$ a_{1}=-4, a_{n}=\frac{a_{n-1}+2 n}{a_{n-1}-1} $$
4 step solution
Problem 28
Write the first five terms of the sequence. $$a_{1}=-4, a_{n}=\frac{a_{n-1}+2 n}{a_{n-1}-1}$$
5 step solution
Problem 29
For the following exercises, one card is drawn from a standard deck of 52 cards. Find the probability of drawing the following: Red six
5 step solution
Problem 29
Use the geometric series \(\sum_{k=1}^{\infty}\left(\frac{1}{2}\right)^{k}\). What number does \(S_{n}\) seem to be approaching in the graph? Find the sum to explain why this makes sense.
5 step solution
Problem 29
For the following exercises, find the number of subsets in each given set. The set of two-digit numbers between 1 and 100 containing the digit 0
4 step solution
Problem 29
For the following exercises, use the Binomial Theorem to write the first three terms of each binomial. $$ \left(x^{3}-\sqrt{y}\right)^{8} $$
6 step solution
Problem 29
For the following exercises, write a recursive formula for each geometric sequence. $$ a_{n}=\left\\{\frac{3}{5}, \frac{1}{10}, \frac{1}{60}, \frac{1}{360}, \ldots\right\\} $$
3 step solution
Problem 29
For the following exercises, write the first five terms of the sequence. $$ a_{1}=-1, a_{n}=\frac{(-3)^{n-1}}{a_{n-1}-2} $$
6 step solution
Problem 29
Write the first five terms of the sequence. $$a_{1}=-1, a_{n}=\frac{(-3)^{n-1}}{a_{n-1}-2}$$
5 step solution
Problem 30
For the following exercises, one card is drawn from a standard deck of 52 cards. Find the probability of drawing the following: An ace or a diamond
7 step solution
Problem 30
Find the indicated sum. $$ \sum_{a=1}^{14} a $$
5 step solution
Problem 30
For the following exercises, find the distinct number of arrangements. The letters in the word "juggernaut"
5 step solution
Problem 30
For the following exercises, find the indicated term of each binomial without fully expanding the binomial. The fourth term of \((2 x-3 y)^{4}\)
7 step solution
Problem 30
For the following exercises, write a recursive formula for each geometric sequence. $$ a_{n}=\left\\{-2, \frac{4}{3},-\frac{8}{9}, \frac{16}{27}, \ldots\right\\} $$
3 step solution
Problem 30
Write the first five terms of the sequence. $$a_{1}=-30, a_{n}=\left(2+a_{n-1}\right)\left(\frac{1}{2}\right)^{n}$$
5 step solution
Problem 31
For the following exercises, one card is drawn from a standard deck of 52 cards. Find the probability of drawing the following: A non-ace
4 step solution
Problem 31
Find the indicated sum. $$ \sum_{n=1}^{6} n(n-2) $$
5 step solution
Problem 31
For the following exercises, find the distinct number of arrangements. The letters in the word "academia"
5 step solution
Problem 31
For the following exercises, find the indicated term of each binomial without fully expanding the binomial. The fourth term of \((3 x-2 y)^{5}\)
5 step solution
Problem 31
For the following exercises, write a recursive formula for each geometric sequence. $$ a_{n}=\left\\{\frac{1}{512},-\frac{1}{128}, \frac{1}{32},-\frac{1}{8}, \ldots\right\\} $$
4 step solution
Problem 31
For the following exercises, write the first eight terms of the sequence. $$ a_{1}=\frac{1}{24}, a_{2}=1, a_{n}=\left(2 a_{n-2}\right)\left(3 a_{n-1}\right) $$
7 step solution
Problem 31
Write the first eight terms of the sequence. $$a_{1}=\frac{1}{24}, a_{2}=1, a_{n}=\left(2 a_{n-2}\right)\left(3 a_{n-1}\right)$$
7 step solution
Problem 32
Find the indicated sum. $$ \sum_{k=1}^{17} k^{2} $$
6 step solution
Problem 32
For the following exercises, one card is drawn from a standard deck of 52 cards. Find the probability of drawing the following: A heart or a non-jack
6 step solution
Problem 32
For the following exercises, find the distinct number of arrangements. The letters in the word "academia" that begin and end in "a"
5 step solution
Problem 32
For the following exercises, find the indicated term of each binomial without fully expanding the binomial. The third term of \((6 x-3 y)^{7}\)
4 step solution
Problem 32
For the following exercises, write the first five terms of the geometric sequence. $$ a_{n}=-4 \cdot 5^{n-1} $$
6 step solution
Problem 32
For the following exercises, write a recursive formula for each arithmetic sequence. $$ a=\\{-15,-7,1, \ldots\\} $$
3 step solution
Problem 32
For the following exercises, write the first eight terms of the sequence. $$ a_{1}=-1, a_{2}=5, a_{n}=a_{n-2}\left(3-a_{n-1}\right) $$
7 step solution
Problem 32
Write the first eight terms of the sequence. $$a_{1}=-1, a_{2}=5, a_{n}=a_{n-2}\left(3-a_{n-1}\right)$$
8 step solution
Problem 33
For the following exercises, two dice are rolled, and the results are summed. Construct a table showing the sample space of outcomes and sums.
5 step solution
Problem 33
Find the indicated sum. $$ \sum_{k=1}^{7} 2^{k} $$
5 step solution
Problem 33
For the following exercises, find the indicated term of each binomial without fully expanding the binomial. The eighth term of \((7+5 y)^{14}\)
6 step solution
Problem 33
For the following exercises, write the first five terms of the geometric sequence. $$ a_{n}=12 \cdot\left(-\frac{1}{2}\right)^{n-1} $$
6 step solution
Problem 33
For the following exercises, write a recursive formula for each arithmetic sequence. $$ a=\\{8.9,10.3,11.7, \ldots\\} $$
3 step solution
Problem 33
For the following exercises, write the first eight terms of the sequence. $$ a_{1}=2, a_{2}=10, a_{n}=\frac{2\left(a_{n-1}+2\right)}{a_{n-2}} $$
8 step solution