Identify the curve represented by the equation.4x2 + 6y2 - 2y = 9 - 3x
A. Circle
B. Hyperbola
C. Ellipse
D. None of these
Answer: C
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Find the linearization L(x) of the given function for the given value of a.f(x) = 7x - 3, a = -6
A. L(x) = -6 B. L(x) = 7 C. L(x) = 7x D. L(x) = 7x - 3
Solve the problem.A(x) = -0.015x3 + 1.05x gives the alcohol level in an average person's bloodstream x hours after drinking 8 oz of 100-proof whiskey. If the level exceeds 1.5 units, a person is legally drunk. Would a person be drunk after 5 hours?
A. Yes B. No
Solve the problem.A store sells tents, sleeping bags, and camp stools. A customer buys a tent, 5 sleeping bags, and 5 camp stools for $255. The price of the tent is 8 times the cost of a camp stool. The cost of a sleeping bag is $15 more than the cost of a camp stool. Find the cost of each item.
A. $80 for a tent; $25 for a sleeping bag; $11 for a camp stool B. $80 for a tent; $30 for a sleeping bag; $15 for a camp stool C. $88 for a tent; $25 for a sleeping bag; $11 for a camp stool D. $80 for a tent; $25 for a sleeping bag; $10 for a camp stool
Evaluate the expression for the given replacement values.
for x = 0, y = -38
A. -38 B. 38 C. 0 D. undefined