Determine which of the numbers below is a possible order of magnitude estimate of the quantity described.The total number of gallons of gasoline that will be used by American drivers in a year.
A. One trillion
B. One hundred billion
C. Ten trillion
D. Ten billion
Answer: B
Mathematics
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Solve the equation. Use the addition axiom.-1 = b - 7
A. {8} B. {-6} C. {6} D. {-8}
Mathematics
2x + 20 + xy + 10y
A. (x + 10)(2 + y) B. (y + 10)(2x + y) C. (y + 10)(x + 2) D. (x + 10y)(2 + y)
Mathematics
Solve the problem.After t seconds the height s of an object propelled upward with an initial velocity of 3200 feet per second is given by s = 3200t - 16t2. What is the height the ball reaches after 114 seconds?
A. 156,864 feet B. 366,624 feet C. 362,976 feet D. 572,736 feet
Mathematics
Solve the problem.A boat can go 99 mph in still water. It takes as long to go 250 mi upstream as it does to go downstream 300 mi. How fast is the current?
A. 8 mph B. 9 mph C. 5 mph D. 1 mph
Mathematics