12/08/14

What is the solution of ?
What is the solution of -19√15x+8=-38?
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12/08/14

solve the equation by converting to the form ax^2+bx+c=0 then factor using the zero product 8x^2-14x=15
Worked this problem out a few times I just dont get it
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12/08/14

Find all t such that 8ln(t+1)=16
a) 8ln(t+1)=16   b) 10=2e^t+2
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12/08/14

I need help finding the "N(t)=" (round to the nearest thousands) and number of people who will be infected in 2008 (round to the nearest whole number)
In 2002 a disease infected 16 people at a large university, and by 2003 the number of those infected had grown to 28. Find an exponential growth function that fits the data and predict the number... more
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12/07/14

I'm confused..
The total wages W in a metropolitan area compared to it's population p can be approximated by a power function of the form W=a*p^(9/8) where a is a constant. About how many times as great does the... more
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12/07/14

what are the values of x such that x^2+7x+6 >_0
Never went over this material teacher said most likely going to be on her next test and the symbol I think is greater than or equal to zero or it could be less than or equal to zero what ever way... more
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12/07/14

what is the axis of symmetry of the function y=7x^2+3x+10
Im not sure how to do this one usually there is a graph available but since there isnt im lost
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12/07/14

One and two thirds of a number equals one and a half, what's the number?
I'm stuck on this priblem and not sure how to do it please solve it with the steps, thank you.
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12/07/14

The longer leg of a right triangle is 4inches longer than the shorter leg. The hypotenuse is 8inches longer than the shorter leg.
The longer leg of a right triangle is 4inches longer than the shorter leg. The hypotenuse is 8incheslonger than the shorter leg. Find the side lengths of the triangle.   SHORTER LEG =  LONGER... more
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12/07/14

Add or subtract as indicated
Add or subtract as indicated   6√3+5√2-5√3-8√2          ( answer is √3-3√2 but i need help on how they got this number)
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12/07/14

Multiply and simplify
Multiply and simplify. Assume that all variables in a radicand represent positive real numbers.   3√20x10y × 3√16x16y13               ( answer is 4x8y4 3√5x2y2 but i need help step by... more
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12/06/14

select the approximate values of x that are solutions to f (x)=0 where f (x)=-8x^2+4x+5
Select the approximate values of x that are solutions to f ( x ) = 0 where f ( x ) =- 8x^2+4x + 5.    (-1.60,0.80) (-8,4) (-0.50,-0.63) (-0.58,1.08)
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12/06/14

Tony is 1/2 of a mile ahead of Laura on a jogging path.Tony is running at 5mph and Laura is running at 7mph how long will it take Laura to catch up with Tony?
help me i really need help on this math word problem need  help HELP me solve this please please please
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12/06/14

I need to know the answer and/or formula
A painter needs to cover the walls of four rooms in two coats of paint. Each room measures 4ft by 8ft, the ceiling is 10 ft high in each room. Each gallon covers 32 square feet. How many gallons of... more
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12/06/14

Suppose you have the following recursion formula a1 = 1, a2 = 2, and an = an - 1)+ an- 2) for integers n = 3. How would you determine the next three terms?
Suppose you have the following recursion formula a1 = 1, a2 = 2, and an = an - 1)+ an- 2) for integers n ≥ 3. How would you determine the next three terms?
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12/06/14

College Algebra 5.5 logs
What is the interest rate necessary for an investment to quadruple after 17 years of continuous compound interest?
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12/06/14

A car rents for $30 per day plus $0.23 per mile. You are on a daily budget of $76.
What mileage will allow you to stay within your budget?
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12/06/14

Solve the Equation
The equation x=2√5x can be used to estimate the speed,s, of a car in miles per hour, given the length in feet, x, of the tire marks it leaves on the ground. A car traveling at 60 miles per hour... more
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12/05/14

Find the fourth-degree polynomial function whose graph is shown in the figure.
Find the fourth-degree polynomial function whose graph is shown in the figure.   *I need to know the correct answer so i can be able to check my answer, thank you! y= _____________
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12/05/14

Find the amplitude, period, and phase shift of the given function.
y = 6 cos(2x − (3pi/2)) Amplitude= Period= Phase shift=
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12/05/14

Word Problem
The sum of three whole numbers is 7. The second number is 1 more than twice of the third number. The sum of the first and third number is 3 less than the second number. Find all the three numbers.
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12/05/14

I need some help simplifying fractions
(7√98) / 98   √98 / 7  
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12/05/14

parallel to 5y=2x+20 (-1,3)
what is the answer  
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12/05/14

Find the selling price of a house when you have payment, term, and rate
Payments are $1,724.36 at the end of each month.  30 year mortgage.  4% annual interest rate, compounded monthly.  What is the beginning loan amount?    Not sure what formula to use here.
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12/04/14

A single bacteria lands on your tooth and multiplies by a factor of 4 every hr. Write an equation that describes the # of bacteria in the colony after n hours.
Please use exponential growth to solve this.
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