Find the indicated probability.A fair die is rolled. Find the probability that the number obtained is not greater than 4.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Rationalize the denominator and simplify. 
A. 1
B. 
C. 
D. 
Mathematics
Solve the problem.A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 ft. Find the length of the ladder if the length is 5 ft more than its distance from the wall.
A. 15 ft B. 20 ft C. 30 ft D. 25 ft
Mathematics
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set.9x + 9y = 9-2x - 7y = -37
A. {(-7, 8)} B. {(-6, 8)} C. Cramer's rule does not apply since D = 0; ? D. {(-6, 7)}
Mathematics
Find an equation of a parabola satisfying the given conditions.Focus (0, 10), directrix y = -10
A. y2 = 10x B. y2 = 40x C. x2 = 10y D. x2 = 40y
Mathematics