Solve the system of equations using substitution.
A. x = -4, y = -5; x = 5, y = 4
B. x = -4, y = 5; x = -5, y = 4
C. x = 4, y = -5; x = 5, y = -4
D. x = 4, y = 5; x = 5, y = 4
Answer: A
You might also like to view...
Estimate the slope of the curve at the indicated point.
A. 1 B. Undefined C. -1 D. 0
Determine the values of x for which the function is continuous. If the function is not continuous, determine the reason.f(x) = 
A. Not continuous at x = -3; function not defined B. Not continuous at x = -3, x = -1, x = 0; function not defined C. Continuous for all x D. Not continuous at x = 0, x = -3; function not defined
Solve the problem.The cost of a rental car for the weekend is given by the function C(x) = 137 + 0.25x, where x is the number of miles driven. Find and interpret the C-intercept of the graph of this function.
A. 0.25; There is a flat rate of $0.25 to rent a car in addition to the charge for each mile driven. B. 137; The cost of the rental car increases by $137 for each mile driven. C. 137; There is a flat rate of $137 to rent a car in addition to the charge for each mile driven. D. 0.25; The cost of the rental car increases by $0.25 for each mile driven.
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 8
A. -0.99 B. 0.99 C. -0.15 D. 0.15