Graph the quadratic function using its properties. Based on the graph determine the domain and range of the quadratic function.f(x) = -3x2 - 18x - 29
A. domain: {x|-? < x < ?}
range: {y|y ? -2}
B. domain: {x|-? < x < ?}
range: {y|y ? -2}
C. domain: {x|-? < x < ?}
range: {y|y ? -2}
D. domain: {x|-? < x < ?}
range: {y|y ? -2}
Answer: D
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250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Carol scored 85 points on the exam. In approximately what percentile of the class does this score place her?
A. 84th percentile B. 95th percentile C. 34th percentile D. 68th percentile E. none of these
Solve the problem.Sam is a sales representative whose territory consists of eleven major cities in the midwest. He wants to visit customers in each of the cities, and he wants to minimize travel cost. Sam uses the cheapest-link algorithm to find a cheapest-link tour with a total cost of $1894. Suppose that he later finds out the cost of an optimal tour is $1760. What was the relative error of the cheapest-link tour? Express your answer as a percentage, rounded to the nearest tenth of a percent.
A. 7.6% B. 7.1% C. 15.2% D. 13.3% E. 3.8%
Solve the problem.Sandy manages a ceramics shop and uses a 
kiln to fire ceramic greenware. After turning off her kiln, she must wait until its temperature gauge reaches 
before opening it and removing the ceramic pieces. If room temperature is 
and the gauge reads 
in 10 minutes, how long must she wait before opening the kiln? Round
your answer to the nearest whole minute. A. 88 min B. 59 min C. 313 min D. 220 min
Use the limit properties to find the following limit.If 
f(x) = 4, find 
.
A. 4 B. Does not exist C. 2 D. 7