Yoshi carries a balance on her credit card each month. In May, she decides she wants to use her card to buy a new dishwasher. In which part of the billing cycle should she make her purchase in order to keep her finance charges to the minimum?
What will be an ideal response?
She should make the purchase later in the billing cycle in order to keep her average daily balance lower, and therefore her finance charges will be lower.
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Perform the operation and simplify.
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Please enter the answer as a polynomial.
What will be an ideal response?
Solve the problem.A certain electronic air cleaner is capable of filtering x liters of air per second and the percentage of the contaminants that are removed from the air may be calculated by 
where 
(i) Graph f in [0, 85, 5] by 
(ii) Use the intersection-of-graphs method to estimate the x-values where 75% to 90% of the pollutants are removed.
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A. 
75% to 90% are removed when
about 46 to 55 liters of air are
filtered.
B. 
75% to 90% are removed when
about 38 to 46 liters of air are
filtered.
C. 
75% to 90% are removed when
about 25 to 31 liters of air are
filtered.
D. 
75% to 90% are removed when
about 31 to 38 liters of air are
filtered.
Multiply using the FOIL method.(3x + 3)(2x + 4)
A. 6x2 + 18x + 12 B. 6x2 + 18x + 18 C. 5x2 + 18x + 12 D. 5x2 + 18x + 18
The problem that follows refers to triangle ABC.
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If 
and 
yd, find a.
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Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 49.1 yd B. 56.1 yd C. 53.1 yd D. 55.1 yd E. 54.1 yd