Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find cot A when b = 4 and c = 9.
A. 
B. 
C. 
D. 
Answer: D
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Calculate the area of the surface S.S is the lower portion of the sphere x2 + y2 + z2 = 49 cut by the cone z = 
.
A. 14
?
B. 49
C. 49
?
D. 98
?
Provide an appropriate response. Explain the difference in perimeter and area of a rectangle in terms of arithmetic operations.
What will be an ideal response?
Approximate the value using a calculator. Express answer rounded to three decimal places.2.72.43
A. 14.611 B. 6.561 C. 10.994 D. 11.174
Solve the problem.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). (i) Use a graphing calculator to fit a linear sequence regression function an = an + b to the data, where n is the cost of advertising (in thousands of dollars) and an is number of products sold (in thousands). (ii) Use this function to estimate the number of products sold if the cost of advertising is $14,000.
A. (i) an = 3.02n + 55.8; (ii) 101.56 thousand products B. (i) an = 2.73n + 34.8; (ii) 91.86 thousand products C. (i) an = 5.79n + 94.3; (ii) 39,115.8 products D. (i) an = 2.79n + 55.8; (ii) 94.86 thousand products