Write expanded notation.378
A. 3 thousands + 7 hundreds + 8 tens
B. 3 hundreds + 7 tens + 8 ones
C. 378 hundreds
D. 8 hundreds + 7 tens + 3 ones
Answer: B
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The proprietor of the Showplace, a video store, has estimated that the rental price p (in dollars) of prerecorded video discs is related to the quantity x rented/day by the demand equation
?
?
Currently, the rental price is $3/disc. Is the demand elastic or inelastic at this rental price? If the rental price is increased, will the revenue increase or decrease?
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A. inelastic, increase B. inelastic, decrease C. elastic, decrease D. elastic, increase
Match the given equation with one of the graphs.64x2 - 25y2 = 1600
A. 
B. 
C. 
D. 
Find the reciprocal.
A. 
B. 
C. 
D. 
Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.1 - 
i
A. 4(cos 330° + i sin 330°) B. 2(cos 330° + i sin 330°) C. 4(cos 300° + i sin 300°) D. 2(cos 300° + i sin 300°)