Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.7 - 14 + 28 - 56 + 112 - ... + 7 ? (-2)8
A. 1195
B. 1197
C. 1204
D. 1191
Answer: B
Mathematics
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Find the indicated derivative.Find y ''' if y = 6x sin x.
A. y ''' = 6x cos x + 18 sin x B. y ''' = - 6x cos x + 18 sin x C. y ''' = - 6x cos x - 18 sin x D. y ''' = 12 cos x - 6x sin x
Mathematics
Perform the indicated operation. Simplify, if possible.
- 
+ 
A. None of these
B. 
C. 
D. 
Mathematics
Solve.A calculator has a purchase price of $18. If the sales tax on this purchase is $1.53, find the sales tax rate.
A. 0.078% B. 0.915% C. 8.5% D. 0.085%
Mathematics
Refer the trapezoid shown below. Find x.
?
?
A. 42° B. 138° C. 142° D. 125°
Mathematics