Find the domain and range of the inverse of the given function.f(x) = 3.9 - 2.25x

A. Domain: all real numbers; range: [3.9, ?)
B. Domain and range: all real numbers
C. Domain: all real numbers; range: (?, 3.9]
D. Domain: [3.9, ?); range: all real numbers


Answer: B

Mathematics

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Find the missing numbers.

A. (a) = 3, (b) = 1, (c) = 8, (d) = 5 B. (a) = 2, (b) = 2, (c) = 6, (d) = 5 C. (a) = 3, (b) = 1, (c) = 7, (d) = 4 D. (a) = 2, (b) = 1, (c) = 7, (d) = 5

Mathematics

Find the distance d(P1, P2) between the points P1 and P2.P1 = (1, -5); P2 = (-2, -1)

A. 25 B. 10 C. 5 D. 6

Mathematics

Use the graph of the function f to solve the inequality.f(x) < 0

A. [-5, 2] ? [6, ?) B. (6, ?) C. (-?, -5) ? (2, 6) D. (-5, 2) ? (6, ?)

Mathematics

Gary invests a total of $21,000 in two accounts, one paying 5.5% simple interest per year and the other paying 8.5% simple interest per year. His annual interest from both accounts is $1,280 . How much did he invest at each rate?

What will be an ideal response?

Mathematics