Factor completely. State that the polynomial is prime if it cannot be factored.x2 + 40x + 400
A. (x - 20)2
B. prime
C. (x + 20)2
D. (x + 20)(x - 20)
Answer: C
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Compute r, the linear coefficient of correlation, for the given data.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands):
A. 0.708 B. 0.235 C. 0.246 D. -0.071
The following question refers to a country with five states. There are 250 seats in the legislature, and the populations of the states are given in the table below.
Using a divisor of D = 39,500, the modified quotas (to 3 decimal places) are
A. State A: 6.250; State B: 21.875; State C: 117.500; State D: 95.625; State E: 8.750. B. State A: 6.242; State B: 21.848; State C: 117.353; State D: 95.506; State E: 8.739. C. State A: 6.329; State B: 22.152; State C: 118.987; State D: 96.835; State E: 8.861. D. State A: 6.173; State B: 21.605; State C: 116.049; State D: 94.444; State E: 8.642. E. none of these
Find the first year's depreciation using the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.
A. $28,000 B. $42,000 C. $17,500 D. $52,500
Solve.A window washer accidentally drops a bucket from the top of a 64-foot building. The height h of the bucket after t seconds is given by 
When will the bucket hit the ground?
A. 32 sec B. 4 sec C. -2 sec D. 2 sec