Provide an appropriate response.
Find the discriminant for 2x2 - Bx + r2 = 0.
A. -B2 - 8r2
B. 1 - 8r2
C. B2 - 8r2
D. B2 - 8
Answer: C
Mathematics
You might also like to view...
Use differentiation to determine whether the integral formula is correct.
dx = -x cos x + sin x + C
A. No B. Yes
Mathematics
Solve the problem.After a new firm starts in business, it finds that its rate of profits (in hundreds of dollars per year) after t years of operation is given by 
Find the profit in year 6 of the operation.
A. $12,100 B. $21,500 C. $31,200 D. $27,550
Mathematics
Use the half-angle formulas to evaluate the given function.cos 22.5°
A. 0.9238 B. 0.5412 C. 0.9808 D. 0.3827
Mathematics
Solve the equation on the interval [0, 2?).sin 2x + sin x = 0
A. 0, 
, ?, 
B. 
, 
, 
, 
C. 
, 
D. no solution
Mathematics