Solve problems using a calculator.An electronics mixing circuit adds two given input frequencies to produce an output signal. If the input frequencies are 38,102 kHz and 55,981 kHz, calculate the frequency of the output signal.
A. 94,083 kHz
B. 94,242 kHz
C. 94,076 kHz
D. 92,189 kHz
Answer: A
Mathematics
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Solve the problem.A woman invested $2000 at 7% (or 0.07) for 8 years. How much did she have in her account at the end of 8 years? 
A. $112 B. $3120 C. $1120 D. $2240
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Evaluate.
A. 13,983,816 B. 2352 C. 110,544 D. 5,085,024
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Find fractional notation for the ratio. You need not simplify.In this rectangle, find the ratios of length to width and of width to length.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
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The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.[-5, -4] 
A. decreasing B. constant C. increasing
Mathematics