3,398 Answered Questions for the topic College Algebra

College Algebra Word Problem

08/28/14

You invest 1, 300 in a 10-year bond that gives you 4 ? % interest on 1, 300 each year for 10 years. Construct a function that represents the amount of interest

A word problem for learning about functions and domain and range.
College Algebra

08/25/14

(x^3y^-2)^2/(x^5y^3)^-3

simplify and write the resulting expression with only positive exponents
College Algebra

08/23/14

Determin the cost, in dollars of delivering x parcel per flight

An air freight company has determined that the cost, in dollars, of delivering x parcels per flight isC(x) = 4025 + 5x.   The price per parcel, in dollars, the company charges to send x parcels... more
College Algebra

08/23/14

Determine the number of units x that produce a maximum revenue, in dollars, for the given revenue function. R(x) = 312x - 0.2x2

x= _______ units       Determine the maximum revenue.  $__________

08/15/14

Find the consumer and producer surplus for an item

Supply: p =5q2   Demand: p = 4800 - q2/3   I figured out price is p= 4500 and q = 30 (at equilibrium) now how do you solve for the surplus of both. I know it's a type of interval question but... more

08/15/14

So my equation is 9 = 2.0 + 2.768 ln(x) I'm not sure what steps to take.

subtract 2 from both sides 7 = 2.768 ln(x)   Then I just go blank I raised it to e after also adding 2.768 but I'm pretty sure that's not correct. 4.232 = ln (x) e^4.232 = x   I'm so sure... more

08/15/14

The equation g(x) = 2.0 +2.768 ln(x) gives a company's revenue, in billions of dollars, with x representing years after 2010.

According to the equation, when will revenue reach 9 billion?
College Algebra

08/13/14

math question please help

what is 4-3x -2 <-x+7+2x   is it A) x>-5/4 B) x<-5/4 C)x>5/4 D) -5/4<x<5/4                             QUESTION 2    What is-3<1-1/2x ≤5    A) -8≥X ≤... more
College Algebra

08/13/14

math help please

solve for y. 3x-6y+12=0   number two solve for x. |x -2|+5=3 number three | 8-5x | + 2+4 number four | 3x - 7 |= | 3x +7 |  number five The perimeter of a rectangle is 88inches. if the... more
College Algebra Algebra Substitution Method

08/12/14

solve using substitution 2y=x^2 and y=4x^3

I need to solve using the substitution method, but I'm having trouble figuring out how to do it with this problem.     2y=x2 and y=4x3
College Algebra

08/12/14

what is y=log base 12x

solve for x in the equation y = log base 12 x  

08/12/14

solve using substitution y^2=x and x+2y+3=0

I need to solve using the substitution method, but i can't figure out how to do it with this problem. y^2 mean y squared.
College Algebra

08/12/14

math help please

2/3x - 4=2                        number two question. 8(x-2)+3-3(x-4)=3                         number three question -1.2-3x=0.6x +6                         number four... more
College Algebra

08/11/14

My question is over the log functions

Using the formula M = log(I/I0) find the I (as many multiples of I0) with M = 7.3
College Algebra Algebra 1 Algebra 2 Geometry

08/11/14

Word Problems

1. A village wants to build a community center that is projected to cost 1.2 million dollars. Cost per resident is increased by $3 as it is discovered there are 225 fewer residents than when... more
College Algebra

07/21/14

suppose that x=log2^5 and y= log10^9. express log2^3 in terms of x and y

I need to see work, answer is 1/2y(x+1)
College Algebra

07/10/14

the average of 3 numbers is 12. If one of the numbers is 8 what are the sum of the other 2 numbers

the average of 3 numbers is 12. if one of the numbers is 8 what are the sum of the other 2 numbers i need help asap  
College Algebra

06/29/14

Construct a polynominal function f with the following characteristics.

Construct a polynominal function f with the following characteristics.   zeros: -1, 2, and 4 degree 3 y-intercept 16
College Algebra

06/29/14

Find the maximum number of zeros the following Polynominal may have. Do not attempt to find zeros.

Find the maximum number of zeros the following Polynominal may have. Do not attempt to find zeros.   f(x) = 7x3-4x2+x+8
College Algebra

06/29/14

List the potential Rational Zeros of the polynominal function. Do not attempt to find the zeros.

List the potential Rational Zeros of the polynominal function. Do not attempt to find the zeros.   f(x) = 11x4-8x3+x2-x+1   A) -1, 1, -11, 11 B) -1, 1, -11, 11, -8, 8, -1/11, 1/11, 1/8,... more
College Algebra

06/29/14

If 7+5i is a zero polynominal function with a degree of 5 with real coefficants, then so is____.

If 7+5i is a zero polynominal function with a degree of 5 with real coefficants, then so is____.
College Algebra

06/29/14

Using Data Given Below Use this function to Predict the Number of Hurricanes.

Using Function Given Below Use this function and data to Predict the Number of Hurricanes between 1961 and 1970.   Decade, x            Major Huricanes Striking,H 1921-1930, 1      ... more
College Algebra

06/29/14

Find the Domain of the Following Rational Function

Find the Domain of the Following Function   H(x) = (-6x2)/(x-6)(x+5)    
College Algebra

06/29/14

Find a bound on the real zeros of the Polynominal function

Find a bound on the real zeros of the Polynominal function.   f(x) = x4+3x3-7x-3   Every real zero lies between -___ and ___

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