Factor completely. State that the polynomial is prime if it cannot be factored.5x2 - 4x - 9
A. (5x - 9)(x + 1)
B. (9 - 5x)(5x - 9)
C. (5x - 18)(5x - 9)
D. (5x - 9)(x - 1)
Answer: A
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Find a rectangular-coordinate equation for the curve by eliminating the parameter.  figure 1.png)
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Evaluate the expression for the given values of x and y.
+ 
;
x = 4 and y = -1
A. 2 B. 1 C. 0 D. -1
Write the first four terms of the sequence.an = -7
A. a1 = -7, a2 = 14, a3 = -21, a4 = 28 B. a1 = -7, a2 = -14, a3 = -21, a4 = -28 C. a1 = -7, a2 = -7, a3 = -7, a4 = -7 D. a1 = 7, a2 = -7, a3 = 7, a4 = -7
Solve the problem.A thermometer is taken from a room at 71°F to the outdoors where the temperature is 
Determine what the reading on the thermometer will be after 5 minutes, if the reading drops to 
after 1 minute. Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to two decimal places.)
Fill in the blank(s) with the appropriate word(s).