Find the requested probability.What is the probability that 20 rolls of a fair die will show 6 twos?
A. .1294
B. .0647
C. .0324
D. .0129
Answer: B
Mathematics
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Solve the equation. If the equation has no real solution, so state.
- 3 = 
A. No solution B. x = -5 C. x = 25 D. x = -25
Mathematics
Either the dimensions of two matrices or the matrices themselves are given. Find the dimensions of the product AB and the product BA. If either is not defined, say so.A = 
; B = 
.
A. AB is 1 × 1; BA is not defined. B. AB is 1 × 1; BA is 2 × 2. C. AB is 2 × 2; BA is 1 × 1. D. AB is not defined; BA is 2 × 2.
Mathematics
Factor the polynomial by grouping.x3 - 9x + 4x2 - 36
A. (x - 3)2(x + 4) B. (x2 - 9)(x + 4) C. (x + 3)(x - 3)(x + 4) D. prime
Mathematics
Find the equation of the transverse axis of the hyperbola.
- 
= 1
A. y = 0 (x-axis)
B. x = 0 (y-axis)
C. x = -y
D. y = 
x
Mathematics