Solve the problem.When making a long distance call from his landline, Martin pays $1.55 for the first three minutes. After that, each additional minute or portion of a minute costs $0.30. How many minutes can Martin call long distance if the cost is to be no more than $5.75?
A. up to 14 minutes
B. up to 19 minutes
C. up to 17 minutes
D. at least 4 minutes
Answer: C
Mathematics
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Solve the problem.A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of What dimensions yield the minimum surface area? Round to the nearest tenth, if necessary.
A. 10.6 ft × 10.6 ft × 0.5 ft B. 3.8 ft × 3.8 ft × 3.8 ft C. 5.5 ft × 5.5 ft × 1.8 ft D. 4.8 ft × 4.8 ft × 2.4 ft
Mathematics
Simplify using the rules for raising a quotient to a power and raising a fraction to a negative power.-2
A.
B.
C. 4x2
D.
Mathematics
Find the reciprocal.-
A.
B. -
C.
D.
Mathematics
Determine the area of the shaded region in the figure. Use 3.14 for ? if necessary.
A. 32 sq. in. B. 8 sq. in. C. 36 sq. in. D. 32 sq. in.
Mathematics