A riverboat theater offers bus tours to groups on the following basis. Hiring the bus costs the group $180, to be shared equally by the group members. Theater tickets, normally $30 each, are discounted by 25 cents times the number of people in the group. How many members must be in the group so that the cost of the theater tour (bus fare plus theater ticket) is less than $42 per person?
?
A. at least 12 members
B. at least 13 members
C. at least 28 members
D. at least 24 members
E. at least 32 members
Answer: B
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Use any method to evaluate the integral.
A. 7x2 - 
sin 2x - 
cos 2x + C
B. 
x2 - 
sin 2x - 
cos 2x + C
C. 
x2 - 
sin 2x - 
cos 2x + C
D. 
x2 + 
+ C
Find all specified roots.Eleventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. 1, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Solve.Seven times some number, added to 3, amounts to -25 added to the product of 3 and the number. Find the number.
A. 28 B. 7 C. -28 D. -7
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, tan ? < 0Find sin(2?).
A. 
B. - 
C. 
D. 