Solve the problem.Determine whether (5, -4, 5) is a solution of the system 2x - 3y + 3z = 24 4x + 4y - 3z = -8 3x - 3y + 2z = 23.
A. No
B. Yes
Answer: A
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Solve.Sand is poured carefully into a pile that forms a right circular cone as shown. The total surface area of the cone with slant height s and base radius r is given by the polynomial ?r2 + ?rs. Find an equivalent expression by factoring out a common factor.
A. ?r(?r + s) B. ?r(r + s) C. r(?r2 + ?s) D. ?rs(r + 1)
Find the vertices of the ellipse.36(x + 1)2 + 9(y + 3)2 = 324
A. (-1, -3 - 3
), (-1, -3 + 3
)
B. (1, 3), (1, -9)
C. (0, 3), (0, -9)
D. (-1, 3), (-1, -9)
Solve the problem.The two charts show the weight gain of some people and the weight loss of other people. Use the information given to answer the questions below.
How much more weight did Don lose than Ed?
A. 781 grams B. 5135 grams C. -781 grams D. -5135 grams
Write as a decimal.38.1%
A. 0.0381 B. 0.381 C. 0.00381 D. 3.81