Simplify the radical expression. Assume that variables represent positive numbers.
A. 8x7
B. 8x
C. 8x7x
D. 64x7
Answer: A
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Solve the problem.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. By using linear regression, the following function is obtained: 
where x is number of hours studied and y is score on the test. Use this function to predict the score on the test of a student who studies 11 hours. Round to the nearest tenth.
A. 83.8 B. 84.1 C. 74.1 D. 79.1
Use the graph of the function to estimate the x-intercepts.g(x) = 2x2 + 5x - 3
A. x = -3, x = -0.5 B. x = -0.5, x = 3 C. x = -2, x = 3 D. x = -3, x = 0.5
Multiply using the product rule.
? 
A. 
B. 
C. 
D. 
Find the equation of the hyperbola satisfying the given conditions.Vertices at (0, 7) and (0, -7); foci at (0, 10) and (0, -10)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1