Graph the equation.25x2 - 9y2 = 225
A. 
B. 
C. 
D. 
Answer: C
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Show that the function is a solution of the wave equation.w(x, t) = cos (-8ct) sin (-8x)
A. No B. Yes
Solve.For three days in a row, volunteers picked up trash on a particular beach. They picked up a total of 810 pounds. On the second day they collected 21 pounds more than on the first day. On the third day, they picked up 39 pounds less than on the first day. How many pounds of trash did they pick up on the first day?
A. 264 pounds B. 290 pounds C. 276 pounds D. 708 pounds
Perform the indicated operation(s), whenever possible.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. 
Solve the problem.The bar graph shows the number of tickets sold each week by the garden club for their annual flower show. What was the average number of tickets sold during weeks 3, 4, and 5??
A. 42 B. 43 C. 44 D. 129