1,650 Answered Questions for the topic Math Help For College
04/29/14
logarithms help please
Express in terms of sums and differences of logarithms: log?((10 x^2 y^5)/√z ) Show work.
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04/29/14
compound intrest
$15,000 is invested in an account paying 2.5% annual interest compounded quarterly. Find the amount of money in the account at the end of 10 years. Show work, round your final answer to the nearest...
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04/29/14
word problem help please
Psychologist use and exponential model of the learning process, f(t)=c(1-e-kt) where c is the total number of tasks to be learned, k is the rate of learning expressed as a decinal, t is time in...
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04/29/14
solve the exponential equation
Sove the exponential equation and show work
2x+1=52x
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04/28/14
steps on how to do this: -4y-10=5y+44
-4y-10=5y+44
how do i solve this type of equation??
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04/27/14
Temperature and equations
The change in temperature in a certain chemical reaction is given by the equation:T(x)=-0.324x^3+10.3x^2-3.23 x is the length of elapsed time since the start of the reaction and T(x) is the...
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04/27/14
Domain, x-intercepts, y intercepts
Let P(x)=-2x^4+2x^3+12x^2 When factored, P(x)= -2x^2(x+2)(x-3)
(a).State the domain.
(b) State the x-intercepts:
(c) State the y-intercept:
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04/27/14
solve and write interval notation
Solve (x^2-9) ≤0 and write interval notation for the solution set. Show careful algebraic work/explanation.
x
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04/23/14
Intermediate Value Theorem
For f (x) = x^4 – 3x^2 − 8, use the Intermediate Value Theorem to determine which interval must contain a zero of f. Work/Explanation required
4. _______
A. Between 0 and 1
B. Between 1 and...
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04/23/14
function help please
Let f(x)= 6x^2-6
x^2-7x+10
(a) Write f(x) with the numerator and denominator completely factored.
(b) State the domain.
(c) State the vertical asymptote(s).
(d) State...
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04/23/14
Help please please
Solve (x^2-9)/x<=0 and write interval notation for the solution set. Show careful algebraic work/explanation.
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04/23/14
polynomial function help
Find all of the zeros of the polynomial function and state the multiplicity of each. f (x) = x^3(x^2 – 81)
Show work/Explanation
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Math Help For College Inverse Functions
04/23/14
help help help help
For the following if the function is one to one, find the formula for the inverse and show all work.
f(x)=5x+8
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04/21/14
inequality help please
Solve the inequality x(x - 3)(x +5) < 0 and express the solution set in interval notation. Show Work.
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04/21/14
absolutes help show work
Solve the absolute value inequality and write interval notation for the solution set. (show all work)
a) | 5 - 6x | ≥ 7
b) | 6x – 5 | < 9
04/21/14
One to One help
For the following if the function is one to one, find the formula for the inverse and show all work.
a) f(x)=7-x
b) f(x)= 5x+8
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Math Help For College Math
04/20/14
Help me please
A jumbo bag of potato chips contains 18 ounces of chips. The recommended serving is 0.75 ounce. How many servings are in the jumbo bag ?
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Solve ,equation ,check all proposed solutions Show work
Solve the equation. Check all proposed solutions. Show work in solving and in checking.
√(x+7)-5=x
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Solve the equation. Check all proposed solutions. Show work in solving and in checking.
Solve the equation. Check all proposed solutions. Show work in solving and in checking.
x + x = 102
x-3 x+3 x^2-9
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04/16/14
gina bough the following.......
Gina bought the following items: 0.45 kg of oranges at $3.80 per kg, one can of mushrooms for $0.75, one package of chicken breasts for $5.75, and 0.6 kg of tomatoes at $5.40 per kg. She also needs...
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04/15/14
volume help. show work
At A water tank is being filled by water being pumped into the tank at a volume given by the formula, P(t) = 60t +1060, where t is in minutes. At the same time the water tank has a leak and the...
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Consider the equation. show work
Consider the equation 9x2 + 12x - 5=0.
(a) Find and state the value of the discriminant, b2 – 4ac. Then state whether one real-number solution, two different real-number solutions, or two...
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Equation help
Consider the equation 9x2 + 12x - 5=0.
(a) Find and state the value of the discriminant, b2 – 4ac. Then state whether one real-number solution, two different real-number solutions, or two...
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solution of the equation
Find the solutions of the equation 2x2 + 6x = 1. Show work
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complex numbers
perform each of the following calculations involving complex numbers, and write the answer, simplified as much as possible, in the form a + bi, where a and b are real numbers.
1. (4+2i) – (6 –...
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