Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.a = 30, c = 50
A. b = 20
B. b = 40
C. b = 10
D. b = 80
Answer: B
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Find the indicated series by the given operation.Find the first four nonzero terms of the expansion of the function 
by rearranging the expression to get 
where k is a constant, and adding k to the series for 
A. 3 - x + x2 - x3 + . . . B. 2 - x + x2 - x3 + . . . C. 1 - x + x2 - x3 + . . . D. 2 + x - x2 + x3 - . . .
Write the following proportion.7 acres is to 5.2 acres as 10.5 acres is to 7.8 acres.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
The given point is on the graph of y = f(x). Find a point on the graph of y = g(x).g(x) = f(-8x); (3, -8)
A. 
B. (-24, -8)
C. 
D. (24, 8)
Find the cost of a CD in 7 years, assuming an inflation rate of 6%, if its present cost is $16.95. ?
A. $25.80 B. $42.75 C. $26.48 D. $24.07 E. $28.38