Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Mathematics
Translate the word statement into a percent proportion. Do not solve.3.9 is what percent of 9.7?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
PO = 125 W and Pin = 2.3 W. Find AP.
a. 34.7 dB b. 27.2 dB c. 19.2 dB d. 18.8 dB e. 17.4 dB
Mathematics
Match the equation of the ellipse with the appropriate description.
= 1 - 
A. x-intercepts (9, 0), (-9, 0); y-intercepts (0, 25), (0, -25) B. x-intercepts (3, 0), (-3, 0); y-intercepts (0, 5), (0, -5) C. x-intercepts (5, 0), (-5, 0); y-intercepts (0, 3), (0, -3) D. x-intercepts (25, 0), (-25, 0); y-intercepts (0, 9), (0, -9)
Mathematics