Solve the equation.18 - n2 = 7n
A. 2, -9
B. 9, -2
C. 2, 9
D. -9, -2
Answer: A
Mathematics
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Graph the function.f(x) = e3x - 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A phone costs $85 and a battery recharger costs $34. What is the total price for purchasing these items if the sales tax rate is 7%?
A. $8.33 B. $119.00 C. $202.30 D. $127.33
Mathematics
A ball is tossed upward and then falls to the ground. Its height after t seconds is given by the function 
. During the period the rock is rising, what can be said about 
?
?
A. is positive.
B. is negative.
C. is zero.
D. None of the above
Mathematics
Solve the system using matrices.5x - 2y = -1 x + 4y = 35
A. (3, 9) B. (2, 8) C. (3, 8) D. (2, 9)
Mathematics