Convert the given equation to parametric equations. Answers may vary.x2 + y2 = 49
A. x = 49 cos t, y = 49 sin t
B. x = cos t, y = sin t
C. x = 7 cos t, y = 7 sin t
D. x = 7 sin t, y = cos t
Answer: C
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For the given pair of variables determine whether a is a function of b, b is a function of a, both, or neither.a is the number of years of formal education of an adult living in the United States, and b is his or her age in years.
A. a is a function of b B. Both C. Neither D. b is a function of a
Solve the problem.The average per-person annual consumption of hot dogs is shown in the table. Let C be the average per-person consumption of hot dogs at t years since 2002. C = 0.97t + 18.41 can be used to model the data.
What is the slope and what does it mean in this situation?
A. 0.97; Each year the average per-person consumption is 97% of the previous year's average per-person consumption. B. 1.8; Every 1.8 years the average per-person consumption increases. C. 0.97; Each year the average consumption is increased by 0.97 hot dogs per person. D. 18.41; Each year the average consumption is increased by 18.41 hot dogs per person.
If R is the set of real numbers, Q is the set of rational numbers, I is the set of integers, N is the set of natural numbers, and S is the set of irrational numbers, list the set(s) for which a solution to the given equation exists. If a solution to the given equation does not belong to any set, state none.
= ?25
A. S, R B. Q, R C. R D. none
Find all intercepts for the given function. Round to the nearest tenth if necessary.f(x) = log(x + 8)
A. x-int: (8, 0); y-int: (0, 0.9) B. x-int: none; y-int: (0, 0.9) C. x-int: (-7, 0); y-int: (0, 0.9) D. x-int: (-7, 0); y-int: none