Replace the polar equation with an equivalent Cartesian equation.r = 
A. 8y - 9x = 1
B. 
+ 
= 1
C. 
= 1
D. 8x - 9y = 1
Answer: D
You might also like to view...
Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long (to the nearest tenth) will it take the ball to fall 168 feet?
A. 2.4 sec B. 5.8 sec C. 2.2 sec D. 3.2 sec
Use transformations of the graphs of y = x2 or y = |x| to sketch a graph of f by hand.f(x) = 5x2 + 5 
A. 
B. 
C. 
D. 
Translate using numbers and symbols.three times the sum of seven and ten
A. 3(7 + 10) B. (3 + 7) ? 10 C. 3 ? 7 ? 10 D. 3 ? 7 + 10
Use your graphing calculator to find all degree solutions in the interval 
for the following equation.
?
?
A. 15°, 105°, 135°, 225°, 255°, 345° B. 10°, 110°, 130°, 230°, 250°, 350° C. 60°, 180°, 300° D. 30°, 90°, 150°, 210°, 330° E. 20°, 100°, 140°, 220°, 260°, 340°