Write the first three terms in the binomial expansion, expressing the result in simplified form.(x + 6)20
A. x20 + 120x19 + 6840x18
B. x20 + 6840x19 + 6840x18
C. x20 + 120x19 - 6840x18
D. x20 + 1140x19 + 6840x18
Answer: A
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Find the difference.19 - (-9)
A. -28 B. -10 C. 10 D. 28
Determine whether the indicated ordered pair lies on the graph of the given equation.y = 6x2 + 1, (-1, -5)
A. Yes B. No
Find the probability.The age distribution of students at a community college is given below. Age (years)Number of students (f)
1133?A student from the community college is selected at random. Find the probability that the student is between 26 and 35 inclusive. Round your answer to three decimal places.
A. 0.244 B. 0.194 C. 0.050 D. 277
Solve the equation for ? if 
. Do not use a calculator.
?
2cos ? + 1 = 0
?
A. 60°; 120° B. 45°; 315° C. 120°; 240° D. 60°; 300° E. 45°; 45°