State whether the given function is linear and constant, linear but not constant, or nonlinear.f(x) = -2x + 7
A. linear, but not constant
B. none of these
C. linear, constant
D. nonlinear
Answer: A
Mathematics
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Decide whether the equation is "conditional," an "identity," or a "contradiction." Give its solution set.3(40t + 20) = 12(5t + 50)
A. Identity; {9} B. Contradiction; {-11} C. Conditional; {9} D. Conditional; {-11}
Mathematics
Find the product or quotient, using trigonometric form. Write the answer in the form a + bi.(6 - 6i)(7 + 8i)
A. -48i2 + 6i + 42 B. 90 - 6i C. -6 - 90i D. 90 + 6i
Mathematics
Determine whether the sequence is geometric.8, -8, 8, -8, 8, . . .
A. Geometric B. Not geometric
Mathematics
Find the magnitude of the vector.u = 
A. -2
B. 2
C. 40
D. - 4
Mathematics