Find the quotient.
÷ 4
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.A 2000-L tank is initially filled with a copper sulfate solution with a concentration of 50 g/L. A copper sulfate solution with a concentration of 20 g/L flows into the tank at a rate of 15 L/min. The thoroughly mixed solution is drained from the tank at a rate of 15 L/min.(a) Write an initial value problem for the mass of the copper sulfate.(b) Solve the initial value problem.
A. (a) m'(t) = -0.007m + 300, m(0) = 100,000 (b) m = 60,000e-0.007t + 40,000 B. (a) m'(t) = -0.007m + 20, m(0) = 50 (b) m = -39,950e-0.007t + 40,000 C. (a) m'(t) = 0.008m + 300, m(0) = 50 (b) m = -39,950e0.008t + 600,000 D. (a) m'(t) = -133.333m + 300, m(0) = 100,000 (b) m = 60,000e-0.007t + 600,000
Sketch the graph of the equation. Identify the vertex and the intercepts.y = 2x2 + 8x + 12
A. Vertex (-2, 4)
x-intercepts: none
y-intercept: 
B. Vertex: (-2, 4)
x-intercepts: none
y-intercept: (0, 12)
C. Vertex (2, 4)
x-intercepts: none
y-intercept (0, 12)
D. Vertex (2, 4)
x-intercepts: none
y-intercept 
Classify the real number as a natural number, whole number, integer, rational number and/or irrational number. The number may belong to more than one set.-5971
A. whole number, integer, rational number B. natural number, integer, rational number C. integer D. integer, rational number
Insert parentheses in the statement form to show the proper order for the application of the connectives.p ? q ? r
Fill in the blank(s) with the appropriate word(s).