Find the common ratio.
, 
, 
, 
, 
, . . .
A. 
B. 
C. 6
D. 2
Answer: A
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Solve the problem.In a certain memory experiment, subject A is able to memorize words at a rate given by 
In the same memory experiment, subject B is able to memorize at the rate given by 
How many more words does subject B memorize from t = 0 to t = 17 (during the first 17 minutes)?
A. -29 B. -10 C. 77 D. 72
Solve the problem.A rescue cable attached to a helicopter weighs 2 lb/ft. A 170-lb man grabs the end of the rope and is pulled from the ocean into the helicopter. How much work is done in lifting the man if the helicopter is 30 ft above the water?
A. 1070 ft ? lb B. 6000 ft ? lb C. 5160 ft ? lb D. 6900 ft ? lb
Write the number in scientific notation.0.00009458
A. 9.458 × 10-5 B. 9.458 × 105 C. 9.458 × 104 D. 9.458 × 10-4
Solve.
= 7
A. 49
B. 
C. 
D. 7