A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.
Find cos ?.
A. 
B. 
C. - 
D. - 
Answer: D
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Write the quotients with positive exponents.
A. -4x2 B. 4x10 C. 4x2 D. -4x10
Determine whether the scatter diagram indicates that a linear relation may exist between the two variables. If a linear relation does exist, indicate whether the slope is positive or negative.
A. Nonlinear B. Linear with negative slope C. Linear with positive slope
Solve the problem.The cost of owning a home includes both fixed costs and variable utility costs. Assume that it costs $3240 per month for mortgage and insurance payments and it costs an average of $1.17 per unit for natural gas, electricity, and water usage. (i) Determine a linear function that computes the annual cost of owning this home if x utility units are used. (ii) What does the y-intercept on the graph of the function represent?
A. y = -1.17x + 38,880; y-intercept, 38,880, represents the minimum cost of owning the home for 12 months without spending anything on utilities. B. y = -1.17x + 3240; y-intercept, 3240, represents the minimum cost of owning the home without spending anything on utilities. C. y = 1.17x + 3240; y-intercept, 3240, represents the minimum cost of owning the home without spending anything on utilities. D. y = 1.17x + 38,880; y-intercept, 38,880, represents the minimum cost of owning the home for 12 months without spending anything on utilities.
Find the degree of the polynomial.5 - 7x
A. -7 B. 1 C. 2 D. 0