6,938 Answered Questions for the topic mathematics
05/25/21
Find the probability: money
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16. Find the probability that a randomly selected utility bill is (a) less than...
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05/25/21
Find the probability oh height
In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 69.2 inches and a standard deviation of 4.0 inches. A study participant is randomly...
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05/25/21
Find probability with random variable
Assume the random variable x is normally distributed with mean μ=82 and standard deviation σ=4. Find the indicated probability.P(71<x<74)
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Mathematics
05/25/21
what is the solution to the inequality of cis greater than 6
05/24/21
math help needed
Hunter wants to rent a jet ski while he and his family are in Florida for vacation. It costs $10 an hour to rent one of the jet skis.
Make a table showing the total cost for renting the jet ski...
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05/24/21
I dont understand! What is this question asking ?
Substitute 22 in for k. Is the number sentence true or false ? Subsitite 78 in for y. Is the number sentence true or false
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One step equation i dont understand!
I need help and good explanation for "one step equation And one step inequalities 5n=40 (asking for one step equation) X=10( one step equation ) One step inequalities 2n<24X- 7 4 9>
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good explanation needed ! i need help solving this question
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05/24/21
Help me solve this question
Post boxes in London are randomly spaced out and on average five postboxes are found per square mile.(a) Determine the probability that on a certain square mile there will be(i) exactly seven post...
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Mathematics
05/24/21
Which expression is the result of the step in creating an expression equivalent to 4(d+8)-2d+ 1 A 4d+8-2d+1. B 4d+32-2d+1. C 6d-7. D 6d+8+1
Age gap ratio math problem.
If a man is currently 3 times as old as his son, and eight years later he is 2.45 times as old as his son, what will be the ratio of their age after 8 more years (16 years to the current time).
Please help me with this problem
If you are paid hourly, your salary can be found from the formula Salary = hours worked x hourly rate. Even if you're not paid by the hour, your salary and hours worked are related by the same...
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Mathematics Advanced Mathematics
05/24/21
Solve the given initial value problem.
Solve the given initial value problem.y''+ 64y = 0 ; y(0)=1, y'(0)=7
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Mathematics
05/23/21
Help Me Please I Really Need To Pass
A ladder, which is 10 feet long, is placed on a wall such that the top of the ladder touches the top of the wall. The bottom of the ladder is 6 feet away from the wall. What is the height of the wall?
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Changes in graphs
1. School A’s prom committee representing the number of students attending the prom and the cost of prom are given by the graph below. You need to Explain how the original graph for school A will...
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graphical models
1. a) Explain how you know which of the graphs below represent a linear relation or quadratic relation. Consider the description for the path of each graph in your explanation as well. b) Determine...
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Linear/ or Quadratic models
Determine and explain which table of values represents a linear model, quadratic or neither. Use language such as differences and rate of change to provide a reasoning. t H ...
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Linear or Quadratic
Justify (provide a reasoning and math evidence) which equation(s) below represents are linear relation, quadratic relation or neither. y = -4 + 8x y = -4 + 8x2 y = -4 + 8x4 y = 8(x + 4) y = -4...
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Mathematics
05/23/21
Polynomial is 3-x²+x³ coefficient of x² is
05/23/21
Help me solve this question please
The results of a survey by a large supermarket show that 35 % of its customers shop online.(a) Six customers are chosen at random. Find the probability that more than three of them shop online.(b)...
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Please help with the following Probability Problem
1.Robert's friends assure him that if he asks Kate to marry him, there is an 85% chance that she will say yes. If there is a 55% chance that Robert will summon the courage to ask Kate to marry him...
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05/22/21
Please Help with the following question involving uniform distribution!
A multiple choice test has five possible answers, labelled A, B, C, D, E. If the position of the correct answer is to be chosen at random, draw a probability histogram for this distribution.What do...
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(PLEASE EXPLAIN) How many permutations are there for the following word?
1. RAPUNZELa) How many being with the letter u?b) How many being with the letter e?
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05/22/21
Independent Event Problem
There are 3 candies, 8 coins, 1 pen, and 4 pieces of paper in a bag. An item is selected at random from the bag. After replacing it, a second item is chosen. Find the probability for the...
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