The playbook for the quarterback of the Cowboys has 45 plays. How many different ways could the quarterback select 4 plays for the first 4 downs?
A) 148,995
B) 3,575,880
C) 146,611,080
D) 1,221,759
E) 180
B) 3,575,880
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A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2 for r = 9, ? = 3.14
A. A = 28.26 B. A = 12.14 C. A = 88.74 D. A = 254.34
Find a general term an for the geometric sequence.a1 = - 
, r = 7
A. an = 
n-1 + 
B. an = - 
+ 
(n - 1)
C. an = - 
+ 
(n - 1)
D. an = - 
? 7n-1
Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = (x + 1)(x - 7)(x - 1)2
A. x = -1, crosses the x-axis; x = 7, crosses the x-axis; x = 1, crosses the x-axis B. x = -1, crosses the x-axis; x = 7, crosses the x-axis; x = 1, touches the x-axis and turns around C. x = 1, crosses the x-axis; x = -7, crosses the x-axis; x = -1, touches the x-axis and turns around D. x = 1, crosses the x-axis; x = -7, touches the x-axis and turns around; x = -1, touches the x-axis and turns around
Evaluate dz.z = x3 - 7xy2 + 8y; x = 3, y = -3, dx = -0.03, dy = -0.02
A. -1.60 B. -4.75 C. -1.44 D. 0.08