6,938 Answered Questions for the topic mathematics

03/01/22

Determine ( ylny - e^(-xy) )dx + ( 1/y + xlny )dy = 0 is exact or not. If exact it, solve it.
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03/01/22

Given, (2xy dx + dy) e^(x^2) = 0, with the initial condition y(0) = 2. If exact, solve it or if not, then by using the integrating factors solve it and find the particular solution.

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03/01/22

Given, (2xy dx + dy) e^(x^2) = 0, with the initial condition y(0) = 2. If exact, solve it or if not, then by using the integrating factors solve it and find the particular solution.

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Mathematics Math Elementary Math

03/01/22

7th Grade Math Help!

I've been sitting at my desk for hours trying to figure this out to help my son in the 7th grade. He's a remote student with no access to a teacher, hence, why I need assistance. I managed to... more
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Mathematics

03/01/22

Simplify the following expression.
Simplify the following expression(2x⁴y⁵z⁵)⁴(3x⁴y-²z-²)
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Mathematics Math Science Prealgebra

02/28/22

There were a total of 14 bicycles and tricycles in the park. There were 36 wheels in all. How many bicycles and how many tricycles were there?
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Mathematics Math Science Prealgebra

02/28/22

Andrew scored 7 more goals than sam in a soccer season. If Sam had scored 3 times as many goals, he would havw scored 1 goal more than Andrew. How many goals did each boy score?
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Mathematics Math

02/28/22

The perimeter of a rectangle is 30 inches. If its length is 3 times its width, find the dimensions

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Mathematics Math

02/28/22

The perimeter of a rectangle is 30 inches. If its length is 3 times its width, find the dimensions

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Mathematics Math Calculus

02/28/22

How to get level curve equations
The function is: g(x, y) = x2 /(2x − y2) .Find the equations of the level curves of g at k = −1, 0, 1
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Mathematics Math Help Advanced

02/28/22

Word problem with multiple decimal operations: Problem type 2
Greg made 2 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for both necklaces was $8.40. If the beads cost $2.40 for each necklace, how much did each... more
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Mathematics

02/27/22

The value of your neighbor,s house
The value of your neighbor,s house was $180,000 but increase to $210,000 over the last year. If the value keeps rising by the same dollar amount each year, what kind of change is that? If the value... more
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Mathematics Math Calculus

02/27/22

Showing that a limit does not exist
lim(x,y)→(1,0) [(y2 + x - 1)2] / [(x - 1)2 + y4)]
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Mathematics Math Calculus

02/27/22

Finding domain of a function.
Given the function f(x, y) = y ln (4-4x2+y2) Express the domain of f as a set. Find fxy for any point (x, y) on its domain
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Mathematics Math Calculus

02/24/22

How to show that a limit does not exist
Show that the limit does not exist: lim(x,y)→(1,0) (x + y2 − 1)/ √ [(x − 1)2 + y4]
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Mathematics Math Algebra 2 Algebra

02/23/22

Given that sinθ=0.3 and 0 is in the ​quadrant, what are cosθ and tanθ? Use the identity sin^2θ+cos^2θ=1 and the basic identities.
Given that sinθ=0.3 and 0 is in the ​quadrant, what are cosθ and tanθ? Use the identity sin^2θ+cos^2θ=1 and the basic identities.
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Mathematics

02/23/22

Express the following equation in point-slope form and intercept form of a line.
1. 2y = 3x + 4Point-slope form:Intercept form:2. 3y = -4x - 1/2Point-slope form:Intercept form:3. 4x - 2y = 3Point-slope form:Intercept form:4. 2/3y + 4x = 2Point-slope form:Intercept form:5. 2x -... more
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Mathematics Math

02/23/22

The function given by f (t)= (-16t-8)(t-1) represents the height of a stone seconds after it was thrown by Clare. In both functions, height is measured in feet. *Whose stone hits the ground first?
The function given by f (t)= (-16t-8)(t-1) represents the height of a stone seconds after it was thrown by Clare. In both functions, height is measured in feet. *Whose stone hit the water first?... more
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Mathematics Math

02/23/22

Math Question Needed to be Answered
What amount of a 60% acid solution must be mixed with a 35% solution to produce 500 mL of a 40% solution?
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Mathematics Math Algebra 2 Algebra

02/22/22

Find the measure of an angle between 0 and 360 coterminal with the given angle. 540 degrees
Find the measure of an angle between 0 and 360 coterminal with the given angle. 540 degrees
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Mathematics Math Algebra 2 Algebra

02/22/22

Sketch the angle in standard position. -225 degrees
Sketch the angle in standard position. -225 degrees
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Mathematics

02/22/22

A person plans to use 128 feet of fencing to enclose a rectangular play area. What dimensions of the rectangle would maximize the area? What is the area?
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Mathematics

02/22/22

Give the equation using x as the variable and give the answer

Three less than four times a number is equal to 15 more then seven times the number . What is the number
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Mathematics Math Calculus

02/22/22

How to Show limit does not exist
Show that the limit does not exist: lim (x,y)→(0,0) sin (xy) /(x 2 + y)
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Mathematics Math Calculus

02/22/22

Finding eqtns for level curves
Given the function g(x, y) = x2 /(2x − y2) .Give the equations of the level curves of g at k = −1, 0, 1.
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