Find exact solutions

find exact solutions on the interval 0≤θ≥2Π. 4cos2θ + 4cosθ - 3 =0

05/30/17

Find the empirical formula

5. A chlorinated hydrocarbon was found to contain 24.24 % C, 4.04 % H, 71.72 % Cl. The molecular mass was found to be 99.00 g/mole. A) Calculate the empirical formula of the compound

Please help me with this math question?

Circle F is intersected by HI and IJ and m∠HIJ = 101°. What is the measure of HJ?     Here's a link to the picture: http://imgur.com/a/O8pO3

05/22/17

FORMULA BREAK DOWN

suppose a certain bacteria that has been treated with an antibiotic begins to decay continuously at a rate of 2.8% per hour. How many bacteria will remain in the original sample of 400000 after 24... more

What is the height of the tree?

Charles places a mirror on the ground 63 feet  from the base of a tree. He walks backwards until he can see the top of the tree in the middle of the mirror. At that point, Jason's eyes are 6 feet... more

05/17/17

how to find the area of polar coordinates by not using calculus

Find the EXACT area contained by the graphs r=8cos theta and r=6sin theta

05/02/17

What volume of NH3 is produced if 39.7 g of nitrogen gas is reacted with an excess of hydrogen gas

What volume of NH3 is produced if 39.7 grams of nitrogen gas is reacted with an excess of hydrogen gas 

05/02/17

What are the maximum and minimum values of f(x,y,z) = xyz subject to the constraint x+y+z =1, and find the points at which these extreme values occur.

Assume x,y,z => 0   Apologies, it cut off. The inequality is the part that trips me up   For minimum I answered that the min 0 is at x = 0 and y+z=1, y =0 and x+z=1, z=0 and x+y=1. However... more

04/29/17

Physics Help. Relative to the axle , magnitude of the angular Momentum of child before collision is 161 kg m^2/s

A playground ride consists of a disk of mass M = 52 kg and radius R = 2.3 m mounted on a low-friction axle. A child of mass m = 28 kg runs at speed v = 2.5 m/s on a line tangential to the disk and... more

04/27/17

Sqrt x^2 + 20 = 3 sqrt x #solve the equations

Sqrt x^2 + 20 = 3 sqrt x #solve the equations

Calculate the distance from the point (3,5) to the line y = x + 4.

rggrfesgergryeryeryerertyrter

04/18/17

Point P is on segment ABOUT such that AP:PB Is 4:5. If A had coordinates (4,2) and B has coordinates (22,2), determine and state the coordinates of P

It is a hard geometry topic that I never understand how to operate.

04/15/17

Physics Help. A string is wrapped around a disk of mass m = 2.3 kg and radius R = 0.08 m.

Starting from rest, you pull the string with a constant force F = 6 N along a nearly frictionless surface. At the instant when the center of the disk has moved a distance x = 0.12 m, your hand has... more

04/15/17

Car rolling down a 55.0m hill. Changes elevation by 1.00m every 4.00m traveled. What is velocity at bottom of hill if coefficient of friction is 0.10?

Significant Figures Apply Detailed Calculations Labeled Steps Simple Minded Man

Find a linear function whose graph is the plane that intersects the xy-plane along the line y= x+7 and contains the point (-4,-4,-21).

Find a linear function whose graph is the plane that intersects the xy-plane along the line y= x+7 and contains the point (-4,-4,-21).

How do I work this problem?

Consider the following system of equations:2x − 3y = 2,4x + 2y = −1−5x − 6y = dFor what value of d does the above system have a solution? For this value of d, graph all three equations... more

A cattle trough has a trapezoidal cross section with a height of 100 cm and horizontal sides of width 100 cm and 50 cm.

A cattle trough has a trapezoidal cross section with a height of 100 cm and horizontalsides of width 100 cm and 50 cm. Assume the length of the trough is 1000 cm. Thedensity of water is = 1000... more

f(x)=x^2-x-6

I want to graph this equation into a parabola.

A punch-out card contains 100 spaces. One space pays $150, five spaces pay $15, and the others pay nothing. How much should you pay to punch out one space?

 Don't understand how to do this problem. Could someone help me please?

04/10/17

(2 sqrt 3 + sqrt 7)/(3 sqrt 3 - sqrt 7) #rationalize the denominators.

(2 sqrt 3 + sqrt 7)/(3 sqrt 3 - sqrt 7) #rationalize the denominators.

Absolute value question help

Find all the value(s) of “x” for which the equation is true: |x| = |x+1|

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.