Graph the quadratic function that models the data given in the table below.
?
x
-4
-3
-2
-1
0
1
2
y
-8
-5
-4
-5
-8
-13
-20
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Multiply.(x + 10)(x - 3)
A. x2 - 30 B. x2 + 4x - 30 C. x2 + 7x + 7 D. x2 + 7x - 30
Simplify. Assume that all variables represent positive real numbers.
- 4
- 7
A. 44
B. -22
C. 22
D. -32
Solve the problem.A cup of coffee is heated to 194°and is then allowed to cool in a room whose air temperature is 
After 11 minutes, the temperature of the cup of coffee is 
Find the time needed for the coffee to cool to a temperature of 102°. Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to one decimal place.)
A. 15.1 minutes B. 41.1 minutes C. 29.7 minutes D. 26.4 minutes
The table shows the first two rates for a single filing status in 2012. Use this information to solve the problem.2012 Tax Rates
Find the federal income tax owed by a single woman with a taxable income of $34,900.
A. $6105 B. $4800 C. $3930 D. $5235