1,642 Answered Questions for the topic Math Help For College

Math Help For College

12/22/16

I need to know how to write the equation of a line parallel to the given line and passing through the given point: y = -3x – 6; (-3,2).
I need to know how to write the equation of a line parallel to the given line and passing through the given point: y = -3x – 6; (-3,2).
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Math Help For College

12/17/16

Math help please
find three consecutive even integers such that the sum of the least integer and the middle integer is 28 more than the greasiest integer
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Math Help For College Math Statistics Statistics Question

12/12/16

find the standard deviation
SS = 120 and score or (n) is 30. how do I compute the standard deviation with no individual scores. Variance is 4.14
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Math Help For College Math Help

12/09/16

The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 3.8% per day. Find the half-life of this subs
(that is, the time it takes for one-half the original amount in a given sample of this substance to decay). Note: This is a continuous exponential decay model. Do not round any intermediate... more
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Math Help For College Linear Inequalities

12/07/16

how to solve a system of linear of inequalities?
I have a problem that says: A machine shop makes 2 types of parts, bearings and washers. in order to make a profit the company must ship at least 5,000 parts per day. in order to maintain quality... more
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Math Help For College

12/06/16

The sum of degrees of all vertices on a graph might be equal to 5.
The sum of degrees of all vertices on a graph might be equal to 5. i dont know
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Math Help For College

12/06/16

Two vertices are said to be adjacent if they have the same degree?
I am not sure if this answer is true or false. If it's true can you explain
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Math Help For College

12/06/16

How many liters of each should be mixed together in order to get 15L that is 13% orange juice?
One canned juice drink is 20% orange juice; and another is 5% orange juice. How many liters of each should be mixed together in order to get 15L that is 13% orange juice?
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Math Help For College Math Word Problem

12/05/16

Math Question
A rectangular painting has a diagonal measure of 25 inches and an area of 168 square inches. Use the formula for the area of a rectangle and the Pythagorean Theorem to find the length and width of... more
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Math Help For College

12/04/16

If a number is added to the numerator of 7/8 and twice as much is added to the denominator, the result is 8/13 . Find the number.
This word problem has is an alebraic expression. I could really use some help.
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Math Help For College

12/01/16

(2x^2-x-19)/x(x+1)(x-1) write the partial descomposition
(2x^2-x-19)/x(x+1)(x-1)
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Math Help For College Math Statistics Psychology

11/28/16

May you please help me?
do cafe customers stay longer with darker lighting- is this observational or observational with case control     It's either a.observational b.observational with case control c.experiment or... more
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Math Help For College Compound Interest

11/28/16

I'm not good at compound interest problems and need help solving this one.
A certain bank account earns 8.4% annual interest compounded quarterly. You deposit $4,000 and leave it in the account. How much money is in the account after 6 years?
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Math Help For College Math Algebra Algebra Question

11/20/16

Can you answer this please with work?
find a third degree polynomial with integer cofficients that has the following zeros: 0,5,2i 
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Math Help For College

11/12/16

Find f. f '''(x) = cos x, f(0) = 1, f '(0) = 7, f ''(0) = 8
 I need to find the orginal function of the question
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Math Help For College Word Problem Formula Math Word Problem

11/07/16

How do I find the estimated age of this tree with the diameter?
The diameter of Reginald's tree increases by 0.6 inches each year. A current measurement gives its diameter as 7.92 inches. Estimate the age of the tree. Answer = years   I don't understand what... more
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Math Help For College Math Linear Algebra Word Problem

11/06/16

Use the linear equation from part (a) to estimate Sven's weight from 50 days ago.
Sven has been on a diet for a couple of months now. When he got on the scale this morning, he weighed in at 242.4 lbs, a marked improvement over the 252 lbs that he weighed 16 days ago.(a) Suppose... more
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Math Help For College Math Probability Math Help

11/02/16

Find the following probability
For the following probability distributions:    x     0    1    2 P(x)  0.5  0.4  0.1   a. Find E(x) b. Find σ(x)
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Math Help For College Math Probability Math Help

11/02/16

Find the probability of three balls
A bag contains 4 White and 7 Black balls. Three balls are selected without replacement. A = 1 W 2B B = at least one black ball   a. Find P(A) b. Find P(B) c. Are A and B independent? d. Find... more
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Math Help For College Math Probability Math Help

11/02/16

Find the probability of these Computer Chips
Computer Chips are manufactured with 20% defective. Five chips are drawn at random with replacement off an assembly line.     a. Find the probability that exactly 3 chips are defective. b. Find... more
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Math Help For College Statistics Probability Mathematics

11/01/16

How many ways can you add the numbers 1-5, USING ONLY 5 NUMBERS, to get a total of 15 or less. You may use numbers more than once
1,1,1,1,1 is a possibility since it is less than 15. list the possible outcomes   1,2,1,1,1 is a different outcome than 1,1,2,1,1.    ORDER DOES MATTER
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Math Help For College

10/31/16

1,000 are deposited into the account quarterly for eight years at interest rate of 7.8% compound quarterly how much is in the account at the end of the 8 years
1,000 are deposited into the account quarterly for eight years at interest rate of 7.8% compound quarterly . how much is in the account at the end of the 8 years
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Math Help For College Calculus Derivatives Product Rule

10/31/16

I need help finding the derivative for this problem using the product rule
f(x)=(4x-4)((5x^3)-(x^2)+1)
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Math Help For College Math Calculus Trigonometry

10/27/16

Find the derivative of cos(sqrtx)^3
I am not sure how to do this. So far I did Cos(x^(1/2)^3 So I did the chain rule to make Cos(u) where u = x^(3/2) Then I got -Sin(sqrtx)^3*(3/2)x^(1/2) Which then simplifies to... more
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Math Help For College Math Discrete Math Math Help

10/25/16

Consider the surjective function cos: R ? [-1, 1] and let ~ be the associated equivalence relation x ~ y ?? cos x = cos y. Find the Equivalence Class
Consider the surjective function cos: R → [−1, 1] and let ∼ be the associated equivalence relationx ∼ y ⇐⇒ cos x = cos y.   Describe the equivalence classes of ∼. (b) Do the analogous exercise... more
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