Express the set of real numbers graphed on the number line using an inequality.
A. x > -2
B. x ? -2
C. x < -2
D. x ? -2
Answer: A
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Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If V = 88.0 in.3 when T = 110° and P = 15 lb/in.2, what is the volume when T = 230° and P = 15 lb/in.2?
A. 224.0 in.3 B. 184.0 in.3 C. 144.0 in.3 D. 174.0 in.3
Perform the indicated operations. Write the answer using only positive exponents. Assume that all variables represent positive real numbers.
A. 246/5x
B. 244/5x
C. 
D. 
Solve.The daily profit in dollars of a specialty cake shop is described by the function P
where x is the number of cakes prepared in one day. Find P(19).
A. P(19) = -8555 B. P(19) = 945 C. P(19) = 4555 D. P(19) = 4945
Solve the problem.Of all numbers whose difference is 4, find the two that have the minimum product.
A. 1 and 5 B. 8 and 4 C. 0 and 4 D. 2 and -2