Solve the inequality analytically. Support the answer graphically. Give exact values for endpoints.x2 - 5x ? -4
A. [-4, -1]
B. (-4, -1)
C. [1, 4]
D. (-?, -4] ? [-1, ?)
Answer: C
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Look for a pattern and then predict the general term, or nth term, an, of the sequence.
, 
, 
, 3, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Use the rule of total probability to find the indicated probability.A survey conducted in one U.S. city together with information from the census bureau yielded the following table. The first two columns give a percentage distribution of adults in the city by ethnic group. The third column gives the percentage of people in each ethnic group who have health insurance.Ethnic Group Percentage Percentage with of adults health insuranceCaucasian54.6?79African American13.5?43Hispanic16.6?53Asian12.7?64Other2.6?55An adult is selected at random from the city. Determine the probability that the adult obtained has health insurance.
A. 0.067 B. 0.673 C. 0.659 D. 0.588
Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
A. B ? A-1 B. B = A-1
Solve the problem.Rich deposits $1000 into a savings account paying 4% interest compounded annually. At the end of each year he deposits $200 into the account. Let yn be the amount in the account after n years.(a) Find a difference equation satisfied by yn.(b) Solve the difference equation.(c) How much will he have in the account after 6 years?
What will be an ideal response?