04/23/19

If x : y = 2 : 5, y : z = 4 : 3 then how do you find x : z?
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04/10/19

Suppose that a family has 8 children.​ Also, suppose that the probability of having a boy is one half 1/2 . Find the probability that the family has no more than 6 boys.
answer in simplified fraction form and use the binomial probability formula
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04/02/19

Two burgers and one hotdog cost $4.82. At the same price, one burger and two hotdogs cost $3.70. How much does a hotdog cost?
Sorry about all of the questions, math is just a hard one for me. Thank y'all for the help!
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03/29/19

7.2 sampling distribution of the mean
A normally distributed population has a mean of 550 and a standard deviation of 80. Determine the probability that a random sample of size 16 will have a sample mean greater than or equal to 609
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03/27/19

What is the distance between the points (-6, 24) and (6, 24) in the coordinate plane
what is the anwers pleas help me because i nee help bad
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03/21/19

How can we write the function x/(ex−1) as the sum of a Taylor Series?
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03/20/19

Two 125,000.0-kg objects are positioned such that their centers are 75,000.0 m apart. What is the gravitational force between the two objects? (G = 6.674 × 10–11 N(m/kg)2)
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03/18/19

What does the bubble collapse of cavitation cause?
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03/18/19

If the infinite curve y=e^(-3x)...
If the infinite curve y=e^(-3x), x>=0, is rotated about the x-axis, find the area of the resulting surface.
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03/15/19

How do you solve dy/dx= (x+y+1) / (x-y-1)?
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03/15/19

What does the F value tell you in ANOVA?
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03/14/19

A fly in an accelerating car?
A fly is flying around in a car, the fly never touches any surface in the car only fly’s around in the air inside the car. The car accelerates. does the fly slam in to the rear window. or does the... more
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03/13/19

How do I prove that kinetic energy = 1/2 mv^2?
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03/13/19

How do you graph f(x) = ||x|-3|+4?
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03/13/19

Differential Equations Text (Math GRE)?
I am currently looking for a Differential Equations text from which to study for the Math GRE Subject Test. (As a side note, I currently own a copy of Stewart's Calculus.) Any suggestions of... more
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03/13/19

How do you solve the differential equation: dy/dx= (2x^4+4x^2+8) / (x^3+4x)?
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03/09/19

Exponential percentage increase equation
I’d like an equation for the following, and how to work it out on the calculator please!55000 x 10%, + 4000 being added after every period, x 12 periods.i can use an exponential growth calculator... more
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03/01/19

Mixture Problems and Systems of Linear Equations in Two Variables
A scientist needs 60 liters of a 40% solution of alcohol. He has a 30% solution and a 60% solution available. How many liters of the 30% solution and how many liters of the 60% solution should he... more
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02/28/19

Evaluate the integral using trigonometric substitution

integrate the integral x^3/(sqrt(x^2+64)dx, x=8tan(theta)
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02/27/19

A truck's mass is 3,000 kilograms. A man applies force to the truck at 6,000 Newtons to get it to accelerate. Calculate the acceleration.
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02/27/19

A Worker Bee has a mass of 1*10^-4 kg. There are 4*10^4 worker bees living in one hive. What is the mass of all the worker bees in the hive together? Write it in scientific notation
I want to find how what is the mass of all the worker bees in the hive together. Please Help?
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02/20/19

Calculate the work required to lift a chain.
A 4-m chain with linear mass density ρ(x) = 2x(4 − x) kg/m from x = 0 to x = 4 lies on the ground. Calculate the work required to lift the chain from its front end so that its bottom is 2 m above... more
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02/19/19

i cant get this right
At a certain concert hall, Orchestra and Balcony tickets were sold for a Friday night concert. The Orchestra and Balcony tickets sold for $30 and $15, respectively. In order to break even with... more
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02/11/19

Find the horizontal and vertical components of a vector that is acting 30° above horizontal with a force of 500 N.
need help with how to answers this question and i dont know where to start can you help me
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02/11/19

Inequality: y<3x+2, when is y less than x?
I have to do a math project and I am lost and dont know what to do. I have to figure out when y is less than x and then verify and justify it. He told me something about y=x and we have to include... more
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