Write the indicated term of the binomial expansion.(3x - 2y)12; 9th term
A. 10,264,320x4y8
B. -5,132,160x8y4
C. -5,132,160x4y9
D. 3,421,440x8y4
Answer: A
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Solve the problem.To measure the width of a river, a surveyor starts at point A on one bank and walks 70 feet down the river to point B. He then measures the angle ABC to be 
Estimate the width of the river to the nearest foot. See the figure below. C
A70 ftB
A. 66 ft B. 25 ft C. 186 ft D. 26 ft
Perform the indicated operation.7 gal 2 fl oz ÷ 2
A. 3 gal 2 qt 1 fl oz B. 3 gal 1 qt 1 fl oz C. 3 gal 9 fl oz D. 3 gal 3 qt 1 fl oz
Find the real solutions, if any, of the equation. Use the quadratic formula.8x2 - x + 4 = 0
A. 
B. 
C. no real solution
D. 
Determine whether the table gives the probability distribution of the random variable X. Explain your answer.
a. No, the sum of the probability assigned to the value of the random variable X is greater than 1.
b. No, the sum of the probability assigned to the value of the random variable X is not equal to 1.
c. No, the probability assigned to a value of the random variable X cannot be negative.
d. Yes, the sum of the probability assigned to the value of the random variable X is equal to 1.
e. No, the sum of the probability assigned to the value of the random variable X is less than 1.