Give the number of terms in the algebraic expression and also give the numerical coefficient of the second term.
–3a + 30b
A. 2; 30
B. 2; –3
C. 2; a
D. 2; b
Answer: A
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Find the area bounded by the given curves.y = 2x - x2, y = 2x - 4
A. 
B. 
C. 
D. 
Use mathematical induction to prove that the statement is true for every positive integer n.2n > 2n + 2, for n ? 4
What will be an ideal response?
Solve the system of equations by Gauss-Jordan elimination.
A. {(5, -2, 5)} B. {(-2, 5, 5)} C. {(5, 5, -2)} D. ?
Solve. If necessary, round to the nearest tenth.The zoo has hired a landscape architect to design the triangular lobby of the children's petting zoo. In his scale drawing, the longest side of the lobby is 7 cm. The shortest side of the lobby is 6 cm. The longest side of the actual lobby will be 35 m. How long will the shortest side of the actual lobby be?
A. 0.3 m B. 40.8 m C. 30 m D. 0.4 m