Solve the problem.Seven slips of paper marked with the numbers 1, 2, 3, 4, 5, 6, and 7 are placed in a box and mixed well. Two are drawn. What are the odds that the sum of the numbers on the two selected slips is not 5?

A. 21 to 2
B. 9 to 1
C. 19 to 1
D. 19 to 2


Answer: D

Mathematics

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Find a parametrization for the curve.The line segment with endpoints (-4, -1) and (-13, -7)

What will be an ideal response?

Mathematics

Use the graph to evaluate the limit.f(x)

A. -2 B. does not exist C. 1 D. 0

Mathematics

Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum , using the indicated point in the kth subinterval for ck.f(x) = 2x + 2, [0, 2], left-hand endpoint

A.

B.

C.

D.

Mathematics

An aqueous solution has a hydrogen concentration [H+] of 0.3 mol/L. Find the concentration of hydroxl ions [OH-] in the solution.

A. 3.33 × 1014 mol/L [H+] B. 3.33 × 10-14 mol/L [H+] C. 3.33 mol/L [H+] D. 3.33 × 10-13 mol/L [H+]

Mathematics