Write the first three terms in the binomial expansion, expressing the result in simplified form.(x + 2)18
A. x18 + 36x17 + 1224x16
B. x18 + 34x17 + 612x16
C. x18 + 34x17 + 1224x16
D. x18 + 36x17 + 612x16
Answer: D
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Determine whether the graph represents a function.
A. Not a function B. A function
Solve the problem.There are 3 cards in a hat; one is a king, one is a queen, and one is an ace. Two cards are to be selected at random with replacement. Using a tree diagram , obtain the sample space for the experiment. List the elements that make up the sample space.
A. K K Q , K A K, Q Q Q, K Q , A A K B. K Q , K A, Q K, Q A, A K, A Q C. K K, K Q , K A, Q K, Q Q, Q A, A K, A Q, A A D. K K, K Q , K A, Q Q, Q A, AQ, A A
Determine the equation of the line described. Put the answer in the slope-intercept form, if possible.Through (-9, 2), perpendicular to 7x - 2y = -67
A. y = - 
x
B. y = - 
x - 
C. y = 
x + 
D. y = - 
x + 4
Approximate f(x) to four decimal places.f(x) = ex - e-x, x = 6.9
A. 992.2757 B. 0 C. 992.2737 D. 118,505.6058