Solve and write interval notation for the solution set.?x? > 10
A. (-10, 10)
B. (-?, -10) ? (10, ?)
C. (-10, ?)
D. (10, ?)
Answer: B
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Provide an appropriate response.Subtract the fractions and reduce: -
A.
B.
C.
D.
Rationalize the denominator. Assume all variables represent positive numbers.
A.
B. 1
C.
D.
Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the leading coefficient a of x2 should be positive or negative.The amount of sales tax paid as a function of the sales price.
A. linear; negative B. quadratic; positive C. linear; positive D. quadratic; negative
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-5, 8)} B. {(-4, 7)} C. {(4, 8)} D. no solution; ?