10/07/20

Given the matrices A and B shown below, find B+A

A= [-2, 4, 0] B= [ -2, -5, 0]
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10/07/20

If m‘ABF = (6x + 26) ° , m‘EBF = (2x – 9) ° , and m‘ABE = (11x – 31) ° , find m‘ABF.

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10/07/20

Statistics- Binomial PDF
A binomial probability experiment is conducted with the given parameters.n=55, p=0.75Find probability when p(35<x<41)Round your answer to nearest ten-thousandth if necessary.
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10/07/20

Suppose that z varies jointly with x and y.
Find the constant of proportionality k if z = 270 when y = 9 and x = 15.k= _____Using the k from above write the variation equation in terms of x and y.z= _____Using the k from above find z given... more
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10/07/20

The mean of normally distributed test scores is 77 and the standard deviation is 3. If there are 172 test scores in the data sample, how many of them were in the 68 to 71 range?
answer options: 58, 4, 23, 82
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10/07/20

Write the equation of a line that is perpendicular to x = 3 and that passes through the point (0,−4)
im very stumped on this questoion please help
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10/07/20

Quadratic Functions
3Put the equation y=x2+2x−3 into the form y=(x−h)2+k:Answer: y = 
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10/07/20

Find the lesser of two consecutive integers with a sum greater than 16. Graph the solution set. Explain how you know it’s correct.
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10/07/20

3 lines l, k, and j lie on the same pane. Lines l and k are parallel. Lines l and j are perpendicular. Which one of the following correctly describes the relationship between lines k and j?
a. Lines k and j are skew linesb. Lines k and j are parallelc. lines k and j are perpendiculard. lines k and j are non coplanar
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10/07/20

What is the proportion
It is estimated that the mean life span of concrete drill bits is 20 hours. Suppose a construction company purchases drill bits that have a lifespan that is approximately normally distributed with... more
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10/07/20

Stat help? binomial probability
A baseball player has a batting average of 0.34. What is the probability that he has exactly 6 hits in his next 7 at bats?The probability is PLEASE ADD a full explanation on how to get the answer
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10/06/20

<1 and <2 form a linear pair. If m<1 = (18x - 1) and m<2 = (23x + 17), find m<2
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10/06/20

Discrete Probability Distribution

In the game of craps, you may bet $1 that the next roll of the dice will be an 11. If the dice come up 11, your profit is $15. If the dice don't come up 11, you lose $1. The probability that the... more
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10/06/20

Use the distance formula to find the perimeter of the triangle with vertices at the points (-1,0) (2,0) and (2,7). Round to two decimal places if necessary.
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10/06/20

Find four consecutive odd integers such that the sum of the first three is 30 more than the fourth
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10/06/20

Jordan has a garden that is enclosed by a rectangular fence the perimeter of the garden is 84 feet the length of one side of fencing is 8 yards what is the area of Jordan’s garden

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10/06/20

if f(x)=3^x+10 and g(x)=5x-3 find (f+g)(x)
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10/05/20

Find the distance from P to L. Line L contains points (-2,4) and (1,-9). Point P has coordinates (14,-6).
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10/05/20

mandy begins bicycling west at 30 miles per hour at 11:00 A.M. If Liz leaves from the same point 20 minutes later bicycling west at 36 miles per hour, when will she catch mandy?
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10/05/20

Statistics and probabilities

Baruch professors claim that they spend more time re-enacting scenes from Game of Thrones than other professors. Thirty Baruch professors who were randomly selected had a mean time of re-enactment... more
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10/05/20

Statistics and probabilities

Baruch professors claim that they spend more time re-enacting scenes from Game of Thrones than other professors. Thirty Baruch professors who were randomly selected had a mean time of re-enactment... more
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10/05/20

Statistics and probabilities

Hippolyta Freeman was testing whether 25 employees at a department store sell more shoes to customers if they had free coffee in the break room compared to the population of employees who sell an... more
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10/05/20

Statistics and probabilities

Hippolyta Freeman was testing whether 25 employees at a department store sell more shoes to customers if they had free coffee in the break room compared to the population of employees who sell an... more
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10/05/20

probability distribution of a random variable

Following is the probability distribution of a random variable that represents the number of extracurricular activities a college freshman participates... more
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10/04/20

Vocabulary Help
Vocabulary Review: equation, algebraic expression, numerical expression, constraint, model, variable, _____________ is a mathematical representation of a situation or a scenario.  _______________... more
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