Solve the system of equations using the addition method. x + 8y = 315x + 7y = 23
A. (-1, 4)
B. (1, 5)
C. (-2, 5)
D. no solution
Answer: A
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Find the inverse of the function.f(x) = (x - 8)2, x ? 8
A. f-1(x) = 
+ 8, x ? 0
B. f-1(x) = -
+ 8, x ? 0
C. Not a one-to-one function
D. f-1(x) = 
, x ? 8
Find the velocity, acceleration, and speed of an object with position function r(t) = 4 sinti + costj for t =  figures 4.png)
. Sketch the path of the object and its velocity and acceleration vectors.
What will be an ideal response?
Use the graph of the function to find the following: a. the domain and range of the function; b. the intercepts, if any; c. the indicated function values; and d. the value of x given the function value.
c. Find f(-2), f(1), and f(3).d. Solve f(x) = 2.
What will be an ideal response?
Use a system of linear equations to solve the problem.A chemist needs 180 milliliters of a 25% solution but has only 1% and 37% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 65 mL of 1%; 115 mL of 37% B. 120 mL of 1%; 60 mL of 37% C. 65 mL of 1%; 120 mL of 37% D. 60 mL of 1%; 120 mL of 37%