Solve the proportion.
?
Fill in the blank(s) with the appropriate word(s).
63
Mathematics
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Use scientific notation to perform the following operations. Leave your answer in scientific notation form.(7 × 105)(2 × 102)
A. 1.4 × 107 B. 1.4 × 109 C. 1.4 × 1010 D. 1.4 × 108
Mathematics
Solve.Metric countries rate the fuel efficiency of a car by the number of liters of gasoline required to drive 100 kilometers. If a car takes 8 liters per 100 kilometers, what is its efficiency in miles per gallon? Use the conversions 1 gal ? 3.7854 L and 1 mile ? 1.6 km.
A. 29.6 mpg B. 0.189 mpg C. 47.3 mpg D. 18.9 mpg
Mathematics
Add or subtract as indicated.- 
+ 
A. - 
B. - 
C. - 
D. - 
Mathematics
Perform the indicated operation.(4x2 - 6x - 7) + (-2x2 - 6x - 3)
A. 2x4 - 12x2 - 10 B. -8x2 - 6x - 10 C. 2x2 - 6x - 10 D. 2x2 - 12x - 10
Mathematics