1,067 Answered Questions for the topic Algebra Help

Algebra Help

10/23/13

Algebra help
A boat travels 16 miles upstream and 15 miles downstream. The total time for both parts of the trip is 9 hours. The speed of the boat in still water is 9 mph. Find the speed of the current. 
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10/21/13

Please solve this Word Problems.
1. Shipping charges are often based on a formula that offers a lower charge per pound as the size of the shipment is increased. Suppose shipping charges are as follows: $2.20 per pound if the... more
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Algebra Help

10/19/13

f(x)=6(x+2)-3 solve for the inverse function when x=21
solve for the inverse when x=21      F(x)=6(x+2)-3
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10/13/13

Solve the equation for t
Solve the equation for t and show all work    (4t2)/5=t/5+21/10
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10/12/13

Solve please and Thank you
Solve (Show all work)   √11-x= x+1
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10/12/13

Use the quadratic formal to solve the equation
Use the quadratic formal to solve the equation (show all work)   (m-4)(3m-10)=3(m-2)+18  
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10/11/13

Math Word problem
The amount P of population varies directly with the population N of people. City A has a population of 416,000 and produces 260,000 tons of pollutants. Find how many tons of pollution we should... more
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10/11/13

Use the product rule to simplify the expression
Use the product rule to simplify the expression. (-4x^4p^6)(6y^5x^2)
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Algebra Help

10/09/13

unclear of what steps to do
A textbook store sold a combined total of chemistry and physics textbooks in a week.The number of chemistry textbooks sold was three times the number of physics textbooks sold.How many textbooks of... more
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Algebra Help

10/08/13

How can we determine the number and type of solutions to a quadratic equation without actually solving it?
 I just need to know for my College Math class. I feel like I am not doing so great in class and need HELP.
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Algebra Help

10/07/13

HELP functions
f(x)=2x-3 and g(x)=√4x+3   find (f ° g)(x) Find the domain of (f ° g)(x) Find (g ° f)(x) Find the domain of (g ° f)(x)   can someone lead me in the right direction on how to do these??
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Algebra Help

10/07/13

HELP functions
given that f(x)=x^2-2x+2 and g(x)=√5+2x   (g-f)(x), (f/g)(x), domain of (f/g), the domain of (g)   How in the world do I do these???
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Algebra Help

10/06/13

how do you solve ln(x+1)-ln(x)=ln4
ln(x+1)-ln(x)=ln4
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Algebra Help Math Algebra Simplify

10/06/13

Simplify. Assume all variables represent positive real numbers
Simplify assume all the variables are positive real numbers    3√x^6y^5
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10/06/13

Use a calculator to write a four-decimal-place approximation of the number (round to four decimal places as needed)
Use a calculator to write a four-decimal-place approximation for the number (round to four decimal places as needed.)   51/4
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Algebra Help Math Algebra Math Help

10/06/13

Simplify the exponential expression
Simplify the exponential expression.   (-2x3y4)5
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10/04/13

Find the cube root
Find the cube root    3√1/125
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10/02/13

Find the distance between the pair of points. Give an exact answer and a three-decimal-place approximation
Find the distance between the pair of points. Give an exact answer and a three-decimal-place approximation. (2.8,-1.8) and (-8.3,9.6)   Find the exact distance  Find the decimal approximation... more
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10/02/13

Add or subtract
Add or subtract . Simplify answer    5√75 -4√50 + √48 =
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10/02/13

Multiply,and then simplify if possible. Assume that all variables represent positive real numbers
Multiply, and then simplify if possible. Assume that all variables represent positive real numbers    √2(√2+y√6)
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09/29/13

Variation equation
If y varies directly as x, find the constant of variation k and the direct variation equation for the situation. y=3 when x=6
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09/29/13

Find the domain of the rational function
Find the domain of the rational function. f(x)=7x-8/7
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Algebra Help

09/27/13

Graphing Fuction help!!
I don't understand....... The questions is: Use a graphing calculator to find the intervals on which the function f(x)=x^3-3x^2+2 is increasing or decreasing and find any maxima or minima. Can... more
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Algebra Help

09/26/13

i need help
1 + 5 = 2       —   —      x     x
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Algebra Help Math Algebra 1 Algebra

09/26/13

What would be the correct graph of the solution to the inequality -13 > -5 + 2 > -28
There is a list of graphs and i thought I got my answer right but none of the answers match. I thought the answer was -3 > x > -6. Is that wrong or is there something wrong with the question???? more
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