Solve the problem.Jill is 7 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 2 kilometers per hour. They meet in 2 hours. How fast is Joe walking?
A. 3.5 kilometers per hour
B. 2.5 kilometers per hour
C. 2 kilometers per hour
D. 1.5 kilometers per hour
Answer: D
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Given p is true, q is true, and r is false, find the truth value of the statement.(~p ? ~q) ? (p ? ~r)
A. True B. False
Write the negation of the quantified statement. (The negation should begin with "all," "some," or "no.")All ants are insects.
A. Some ants are not insects. B. All insects are not ants. C. No ants are not insects. D. Some insects are not ants.
Solve the problem.A man earned $3000 the first year he worked. If he received a raise of $400 at the end of each year, what was his salary during the 15th year?
A. $9000 B. None of these C. $8600 D. $5600
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = 7x2 - x3
A. 0, touches the x-axis and turns around;
, crosses the x-axis;
-
, crosses the x-axis
B. 0, crosses the x-axis;
, crosses the x-axis;
-
, crosses the x-axis
C. 0, touches the x-axis and turns around;
7, touches the x-axis and turns around
D. 0, touches the x-axis and turns around;
7, crosses the x-axis