Find all real numbers in the interval [0, 2?) that satisfy the equation. 2 cos2 x - 1 = 0
A. 
B. 
C. 
D. 
Answer: A
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Graph the equation by plotting points. Use values of ? that are multiples of 30°.r = 2 cos ?
A. 
B. 
C. 
D. 
Solve the problem.A basketball fieldhouse seats 15,000. Courtside seats sell for $8, endzone for $7, and balcony for $5. A full house earns $88,000 in ticket revenue. If half the courtside and balcony seats and all the endzone seats are sold, the total ticket revenue is $51,000. How many of each type of seat are there?
A. 3200 courtside, 1800 endzone, 10,000 balcony B. 4000 courtside, 1500 endzone, 9500 balcony C. 4000 courtside, 3000 endzone, 8000 balcony D. 3000 courtside, 2000 endzone, 10,000 balcony
Draw the line using the slope and y-intercept.
?
?
A. ?
B. ?
C. ?
D. ?
Provide an appropriate response.Is it true that the equation 
and the equation 
are always equivalent equations?
A. True B. False