Translate the sentence to an algebraic inequality.John's weight is greater than or equal to 144 pounds.
A. x ? 144
B. x ? 144
C. x < 144
D. x > 144
Answer: B
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Find the mass of the wire that lies along the curve r and has density ?.r(t) = 5i + (9 - 3t)j + 4tk, 0 ? t ? 2? ; ? = 9(1 + sin 9t)
A. 90? units B. 10 + 90? units C. 18? units D. 20 + 90? units
Solve the initial value problem.
= - 
cos 
?, r(0) = -3
A. r = cos 
? - 4
B. r = -sin 
? - 3
C. r = - 
sin 
? - 3
D. r = sin 
? - 3
Find f"(x) for the function.f(x) = (5x + 3)5
A. 20(5x + 3)3 B. 500(5x + 3)3 C. 500(5x + 3)5 D. 25(5x + 3)3
Express the quantified statement in an equivalent way, that is, in a way that has exactly the same meaning.No germs have made people sick.
A. Some germs have made people sick. B. All germs have made people sick. C. At least one germ has made people sick. D. All germs have not made people sick.