Find the value of the expression.log10 10
A. 10
B. 0
C. 1
D. -1
Answer: C
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Use identities to find the exact value of the expression.cos 20° sec 20°
A. 20 B. 1 C. -1 D. 0
Find an equation for the parabola described.Vertex at (7, -8); focus at (5, -8)
A. (x + 7)2 = 12(y - 8) B. (y + 8)2 = -8(x - 7) C. (x + 7)2 = -12(y - 8) D. (y + 8)2 = 8(x - 7)
Solve the problem.The profit P for selling x items is given by the equation P(x) = 2x - 500. Express the sales amount x as a function of the profit P.
Fill in the blank(s) with the appropriate word(s).
Solve the percent of change problem.Brand X copier advertises that its copiers run 20% longer between service calls than its competitor. If Brand X copiers run 31,100 copies between service calls, how many copies would the competitor run? Round to the nearest copy.
A. 37,320 copies B. 25,917 copies C. 24,880 copies D. 17,278 copies