10/23/16

Find the numerical value of csc^2(x)
6 sin^2(x) - 7 cos^2(x) = 1    Find the numerical value of csc^2(x)
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10/23/16

pls help me to solve them :(
Solve : -4<2x+6≤3x-1     solve the equation 3y^2-9y+1=0 by using completing square
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10/23/16

my test scores
Today I am supposed to tell my grades from my math tests, but I forgot my list. I do remember these facts about my scores. I had a 100. The mean. median. and mode for my set of test scores is 83.... more
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10/23/16

Finding Domain and Range of a Multivariable Function
for the following function find the domain D and range T and show that for every c ∈ T there exists x,y such that f(x,y) = c. Sketch the Domain. The following is my own answer but I am unsure if... more
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10/22/16

Polar Coordinates DIFFICULT question! PLEASE HELP!!!
When recording live performances, sound engineers often use a microphone with a cardioid pickup pattern because it suppresses noise from the audience. Suppose the microphone is placed 4 m from the... more
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10/22/16

A community bird-watching society
A community bird-watching society makes and sells simple bird feeders to raise money for its conservation activities. The materials for each feeder cost $3, and the society sells an average of 36... more
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10/22/16

solve the equation x^2 + v(x-3)^2 = (x-1)^2
solve the equation x2 + √(x-3)2 = (x-1)^2 *the root in √(x-3)2   is for the whole (x-3)2*
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10/22/16

find the root
9x^2–1–(3x–2)^2=0 9x2–1–(3x–2)2=0
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10/22/16

solve the equation
16y(2–y)+(4y–5)^2=0 16y(2–y)+(4y–5)2=0
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10/21/16

What's f^-1(7)?
If f(x)=2x+1, then what does f-1(7)=?
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10/21/16

Marginal cost of violins
The annual demand equation for handcrafted violins by a certain violin maker can be approximated by p=24-x where p is the price in thousands of dollars and x is the quantity of violins demanded.... more
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10/21/16

it takes Joe 40 minutes to shovel and it takes his brother Tom 50 minutes to shovel. If they work together how long will it take to shovel
I need to know how you would solve this question and what the answer would be rounded the nearest minute  
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10/21/16

This question is pertaining to college algebra
When Fritz drives to work his trip takes 30 minutes, but when he takes the train it takes 20 minutes. Find the distance Fritz travels to work if the train travels an average of 12 miles per hour... more
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10/20/16

sec^6(x)-tan^6(x)=1+3tan^2(x).sec^2(x)
Proved LHS is RHS
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10/20/16

logarithms
Solve the equation 2 log10 x = 1 + log10  ( 4x-15/2 )       the (4x-15/2) is actually ' 4x-15 ' divided by 2 
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10/19/16

construction cost
a carpenter has been asked to build an open box with a square base. the sides of the box will cost $3 per square meter, and the base will cost $4 per square meter. what are the dimensions of the... more
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10/19/16

The product of 2 and 3 more than a number is 7
help please  
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10/19/16

What is the inverse of f(x)=x^3-6y^2+12x-8
I know to rewrite as x = y3 -6y2+12y-8
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10/19/16

Find the point on the line 6x+y=9 that is closest to the point (3,8)
How do I solve it?
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10/18/16

find the derivative of 5 sinh(ln t). For this I tried so many different ways and I continually get it wrong.
The function is 5 sinh(ln t). In all my methods I assumed 5 to be a constant, and pulled it out. for the first try I said 5 cosh (ln(t))*1/t then I tried using and replacing the e's in the... more
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10/17/16

SOS please help! web assign assignment question
A car with an odometer reading of 17,814.2 contains 11.2 gallons of gas. At an odometer reading of 18,096.4, the tank is empty and the car is filled with 12.4 gallons of gas. How many miles does... more
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10/17/16

I was given a curve and a point and asked to find the slope of the tangent at that point.
The function is y= x/(y+a) (a) Find the slope of the tangent line to the curve at the point (0, 0). Your answer will have a in it. We have just learned about implicit and explicit formulas. from... more
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10/17/16

How do I start out?
g(x)=2x and h(x)=x-3. find (gh)(-4)
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10/17/16

lim x -> 0 (cos(5x) - 1)/sin(7x)
lim x -> 0 (cos(5x) - 1)/sin(7x)
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10/16/16

consider the general equation of a circle given by 3x^2+3y^2-12y=0
A) complete the square on x and y and write this equation in the standard form b) identify the center and radius c) find intercepts
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