606 Answered Questions for the topic Finite Math

Finite Math Matrices

07/27/20

Finite Math: Matrices
Let F = [0, 1, 1, 2, 0, 1, 0, 2, 3], and G = [1, 1/2, -1/2, 3, 0, -1, -2, 0, 1]Are F and G inverses of each other? Why?
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Finite Math Matrices

07/27/20

Finite Math: Matrices
Let A = [0, -1, 2, 3], B = [2, 1, 4, 0], C = [1, 2 , 3, 0, -2, 1], D = [4, 5, 0, -3, 1, 1], [E = 1, 3, 0, 0, 4, -1, 1, 1, 0]For each of the following, either perform the indicated operation(s) or... more
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Finite Math

07/26/20

Systems of Equations
Solve each of the following systems of equations. If the system has a unique solution (one solution), state this and exhibit the solution. If the system is inconsistent (has no solutions) state... more
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07/25/20

Systems of Equations/Matrices
Solve each of the following systems of equations. If the system has a unique solution (one solution), state this and exhibit the solution. If the system is inconsistent (has no solutions) state... more
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Finite Math

07/23/20

Use the​ Gauss-Jordan method to solve the system of equations. y=-9+x y=-5+z z=6-x
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07/19/20

Solving Systems of Equation with row operations
3x - y + 5z = 14 2x + 3y + 4z = 7 x + y + z = 2
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07/19/20

Solving Systems of equations with row operations
2x - y - 5z = 11 x + 3y + 2z = 14 3x + 8y + 7z = 35
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Finite Math Probability

07/19/20

Finite Math: Probability
Wonder Widgets Inc. has 3 plants producing their De-lux Wonder Widget (DWW). Plant A produces 80% of all DWW, plant B 15%, and plant C the remaining 5%. 7% of Plant A’s production is defective, 6%... more
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Finite Math Probability

07/19/20

Finite Math: Probability
Assume that 37% of the voting population in the US considers themselves as Democrats. Ten of these voters are selected at random(a) What is the probability that exactly 3 of the 10 selected... more
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Finite Math Probability

07/19/20

Probability: Independent Events
Let A and B be independent events with P(A) = .4 and P(B) = .2. Find P(A ∪ B).
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Finite Math Probability

07/19/20

Probability: Combinations
A club consists of 15 women and 10 men. They need to form a committee of 5 people. (a) How many different committees can be formed? (b) How many different committees consisting of 3 women and 2 men... more
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Finite Math Calculus

07/17/20

Help with word problem
At a unit price of $16,000 the demand of a product is 300units and at a unit price of $48,000 the demand is 100units. At a unit price of $30,000 the supply is 550units and at a unit price of... more
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Finite Math Math

07/17/20

Solve the linear equation using the matrices method
Can anyone please help me solve this problem step by step. 6x - y - 9z =54x + y -z =68x +y - 8z = 8
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Finite Math Probability

07/16/20

Finite Math: Probability
A lot of 250 light bulbs contains 20 defective bulbs and 230 good bulbs. A sample of 4 different light bulbs is selected at random.(a) What is the probability that all 4 bulbs selected are good?(b)... more
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Finite Math Probability

07/16/20

Finite Math: Probability
A container has 7 red marbles, 3 white marbles, and 5 blue marbles. A marble is selected at random from these 15 marbles, its color is noted and it is replaced. A second marble is selected from the... more
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Finite Math Probability

07/16/20

Finite Math: Probability & Independence
Last year in Way-up-there Alaska voted for mayor with the following results: Democrat Republican Bull-Moose Party Male 12 22 21 Female 24 13 33 One of these voters is selected at random.(a)... more
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Finite Math Probability

07/16/20

Finite Math: Probability
The House of Representatives consists of 435 members. They considered two bills. 325 members voted yes on bill A. 250 members voted yes on bill B. 170 members voted yes on both bills.(a) How many... more
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Finite Math Probability

07/16/20

Finite Math: Probability
A container has nine marbles numbered 1, 2, 3, 4, 5, 6, 7, 8, 9. Two different marbles are selected at random from this container.(a) What is the probability that one of the marbles selected was... more
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Finite Math

07/16/20

Finite Math: Notations
Let the Universal set U = {1, 2, 3, 4, 5, 6, 7, 8}, A = {1, 5, 6}, B = { 1, 2, 4, 5, 7}, and C = {3, 5, 6, 7}.(a) A ∩ B =(b)  A ∪ (B ∩ C) =(c)  A ᴜ (B∩ C)′ =(d) Exhibit 5 different subsets of A.
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Finite Math

07/16/20

Finite Math: Combination Calculation
Calculate (300) = C(300, 3)= C ( 3 ) 300 3, the number of combinations of 300 objects taken 3 at a time. Carry out the calculation.
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Finite Math Statistics Probability

07/13/20

Finite Math: Probability & Percentages
Wonder Widgets Inc produces  Midget Widgets (MW).. Their data shows that 2% of the output is defective. A sample of 25 MWs is taken.(a) What is the probability that exactly two of this sample are... more
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Finite Math Statistics Probability

07/13/20

Finite Math: Finding Probability & Percentages
Wonder Widgets Inc. has three factories producing the Wham Wonder Widget (WWW). Last year, factory A produced 60 % of all WWW, factory B produced 30% of all WWW, and factory C produced the... more
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Finite Math

07/13/20

an experiment consists of tossing 4 fair (not weighted) coins, except one of the 4 coins has a head on both sides. Compute the probability of obtaining exactly 3 heads.
an experiment consists of tossing 4 fair (not weighted) coins, except one of the 4 coins has a head on both sides. Compute the probability of obtaining exactly 3 heads.
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Finite Math Probability

07/08/20

Conditional Probability & Independence
Let E and F be disjoint events with P(E) = .2 and P(F) = .3. (a) Find P(E ᴜ F). (b) Find P(E ∩ F).
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Finite Math Probability

07/08/20

Conditional Probability & Independence
Let C and D be independent events with P(C) = .2 and P(D) = .3. (a) Find P(C ᴜ D). (b) Find P(C ∩ D).
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