Graph the parabola.8y = -x2
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The average daily air temperature of a certain city can be modeled by the equation 
where x is time in days with x = 1 representing January 1, and A, B, and C are constants. Solve for x.
A. x = 
sin-1 
+ B
B. x = 
sin-1 
+ C
C. x = 
sin-1 
+ C
D. x = 
sin-1 
+ B
Find the balance due on the maturity date of the note. Find the total amount of interest paid on the note. Use the United States Rule.Principal: $32,148Interest: 11%Time (days): 220Partial payment:$10,000 on day 100 $5000 on day 140 $5000 on day 200
A. $14,164.50; $2016.50 B. $13,214.40; $1066.40 C. $13,834.60; $1686.60 D. $12,943.60; $795.60
Find the vertex of the parabola.f(x) = 4x2 + 40x - 5
A. (5, 2) B. (-2, -5) C. (2, 5) D. (-5, -105)
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. - 
B. - 
C. 
D. - 