Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.5(2x - 31) = 10x - 155

A. Conditional; {0}
B. Identity; ?
C. Contradiction; ?
D. Identity; {all real numbers}

Answer: D

Mathematics

Find the value.If F(x, y) = ln (x2 + y2), find Fx(1, 3) and Fy(1, 3).

A. F_x(1, 3) = , F_y(1, 3) =
B. F_x(1, 3) = , F_y(1, 3) =
C. F_x(1, 3) = , F_y(1, 3) =
D. F_x(1, 3) = , F_y(1, 3) =

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Mathematics

Read the following vernier caliper.

Fill in the blank(s) with the appropriate word(s).

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Mathematics

Evaluate., when x = 27 and y = 21

A. 34 B. 30 C. 48 D. 16

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Mathematics

Use a graphing utility to graph the polar equation.r cos ? = 2

A.

B.

C.

D.

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Mathematics