Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 772. Find a linear function, S(t), which fits this data, and which expresses score as a function of time. Use this function to predict an average score for persons taking a 51-hour review course. Round your answer to the tenths place.
A. 692.5
B. 713.8
C. 704.0
D. 699.8
Answer: D
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Solve the problem.Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution with a mean of 
and a standard deviation of 0.04 ounce. Find the probability that the bottle contains fewer than 
of beer.
A. 0.5062 B. 0.4938 C. 0.0062 D. 0.9938
Find the domain and graph the function.G(t) = 
A. D: (-?, ?)
B. D: (-?, 0) ? (0, ?)
C. D: (-?, -2) ? (-2, ?)
D. D: (-?, -2) ? (-2, ?)
Find the indicated cross product.v = i + 4j + 6k, w = 4i - 5j - kFind w × v.
A. 25i + 26j + 21k B. 21i + 26j - 26k C. -26i - 25j + 21k D. -19i + 10j - 24k
Identify the equation as a parabola, circle, ellipse, or hyperbola.x2 - y2 = 25
A. Parabola B. Circle C. Ellipse D. Hyperbola