Mathematics

If the fractions ax/x+y, bx/x-y and c/2x+2y are rewritten as equivalent fractions with the lcd what form with.

The factors in the denominator are, respectively, (x + y), (x - y), 2, and (x + y) again. To find the lcd, take each of the unique factors (to the highest power in which they appear). The lcd is 2(x

Find the vertex using quadratic equation

i need to find the vertex of this equation: 6x^2-15x-9 using to methods, i know method of vertex form but i dont know the other one so if anyone knows please help!!!!!!!!!!!!!-First of all, thats not

Geometry Volume Question

If the surface area of a square pyramid is 300 m, and the sides of the base measure is 10m then find the height of the pyramid. Help please?-Assuming you mean the area is 300 m² since m is a linear me

Help! tough Calculus question

An object is dropped from a height of 400ft. (a) Find the velocity of the object as a function of time. (neglect air resistance) I think its t=400/v is that right?? (b) Use the result in (a) to find

Compute the value of this improper integral

Does this integral converge or diverge: ʃ(8lnx)/(x^8) where a = 1 and b = infinity (hint: integrate by parts).-ʃ(8lnx)/(x^8) Let t = ln x dt = 1/x dx ʃ(8lnx)/(x^8) dx = 8 ʃ t /x^7 dt = ln x = t

Help With Problem Solving...Am I Correct

This is the homework problem: Use the five steps for problem solving to answer the following question. Please show all of your work. Angle M and Angle N are supplementary angles. If Angle M is nine mo

Please help me solve this Quadratic Equation

I need to solve the equation: x/9 = 4/x Thanks in advance. If you have any questions, Ill respond in the additional details.-by cross multiplying we get x^2 =36taking square root gives x = +6 or-6

What do you do when an equation of a line has no "x" or when x and y are added together to a certain number

How do you determine the slope and the y-intercept in these equations: 1) y = -1 2) x + 2y = 4 3) 4x + 2y = 0 Im stuck and I need some help... please!-1. y = -1This is simply a straight line passing

Help solving word problem

A person on top of a 200 foot tall building throws a baseball upward with a vertical velocity of 55 feet per second from a height of 207 feet. Write a function describing the height of the ball, in fe

Trig Question help! If an object moves along a circle of radius...

...r units, then its linear velocity, v, is given by v=r(theta/t), where (theta/t) represents the angular velocity in radians per unit of time. Find the angular velocity for each: a.) a pulley of rad

What does the math symbol \ mean

I saw this in a question and I dont know what it means. I know it cant be / which a dividing symbol. HELP-In mathematics, a backslash-like symbol is used for the set difference. More info about set d

1. give the fraction and decimal value for 12.3%

2. Today Patrick noticed 8 new blooms on his rose bush. This was 20% of the total blooms. How many roses were in bloom 3. Use the simple interest formula. If interestis $ 114.75 on a loan for 3years a

The vector field F(x, y) = <e^x sin y, e^x cos y)> is conservative True or False

Since (∂/∂y)(e^x sin y) = e^x cos y = (∂/∂x)(e^x cos y), F is conservative. I hope this helps!

How do i find the derivative of this function

What is the derivative of: (x+2) / sqrt (2x-1) Thanks!-Lets use the quotient rule: ( f g - f g )/ g^2. sqrt(2x-1) - (x+2)(1/sqrt(2x-1) / sqrt(2x-1)^2, [(2x - 1 - x - 2) / sqrt(2x-1)] / (2x - 1) (x

Find the volume of the solid of revolution obtained by rotating the region

That is bounded by y=x^3 and y=x^2 about the x-axis? I got pi/7, but that doesnt seem correct. I cant figure out what Im doing wrong-Might as well use the washer method. The axis of rotation is horiz