06/15/15

Union and Intersections of a set
How do I find the union and intersection for the following sets   F=w|w≤3 H=w|w >8   the first one I came up with no solution
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06/15/15

Finding the domain of f-1(x).
Given f(x) = 2/3 X2 - 7. Find the domain of f-1(x).
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06/15/15

What are all the solutions of the equation?
X6 = 81X2   and the imaginary solutions
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06/14/15

If y = (sin t)^5t , find dy/dx.
If y = (sin t)^5t , find dy/dx.
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06/12/15

solve problem
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros   4+ i, 1   f(x)=
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06/12/15

solve problem
The polynomial function f(x) has the given zero, find the other zero?   f(x)=x3+8x2-3x-24; -8
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06/12/15

Finding sum of infinite series.
finding the sum of the following infinite series   a) 2,-4,8,-16,... b)3,9,27,81,... c)60,30,15,...   Final exam coming up and I'm stressing thanks so much
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06/10/15

If a sample of 120 grams decays to only 85 grams after 6 days, how many grams of Mathonite will remain after 12 days?
Problem about exponential decay.
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06/09/15

Math help please
If x1 and x2 with x1<x2 meets the equation line of log3 a=2x^2+x , log9 b=5x-x^2 and 9a=b then the value of x2-x1   a.1/4 b.1/2 c.3/4 d.1 e.7/4   The maximum value of a function... more
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06/08/15

Consider the expression
-10x4y+3x2y2-xy3+15y4-5   a)List each term, and state the coefficient and degree of each.   b)What is the degree of the polynomial?  
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06/05/15

largest area that can be enclosed is BLANK square meters.
farmer ed has 8,500 meters of fencing, and wants to enclose a rectangular plot that borders on a river. if farmer ed does not fence the side along the river, what is the largest area that can be... more
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06/04/15

On her last three quizzes, Elise scored 84, 96, and 88. What grade must she get on her next quiz to have an average of 90 for all four quizzes.
Please explain me step by step.
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06/04/15

Question is in description
Please explain answer with work/explanation. Very very confused.  If the area of a rectangle is 126 square inches and the width of the rectangle is 7 inches shorter than the length, what is the... more
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06/04/15

find the value for theta in the interval pi less than or equal to theta less than or equal to 2 pie that satisfies the equation 3 tan theta - square root 3
Find a value for theta in the interval pi lessthan or equal too theta lessthan or equal too 2 pI that satisfies the equation 3tan-60=0
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06/03/15

how do i simplify the expression 5x^-5
5x-5
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06/02/15

Partial Sums of Arithmetic and Geometric Sequences
If a1 is 8 and r is -2/3, find s3       Whats the formula for this? The question doesn't leave much for me to go off of.
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06/02/15

A and B constant Question Differentiable
What constants a and b is the function f(x)= a + be^(x-1) if x<1 fx= x+cos2(x-1) if x> or equal to 1 differentiable at x=1
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06/02/15

the area of a rectangle is x^4 -12x^3 +38x^2 -16x +5 and the width is x -5. Find the length
I'm stuck, because I'm not good at doing things like this.
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06/02/15

for the equation: 6x^5 - x^4 + 3x^2 - 2x + 8 = 0, write down all the possible rational roots
asap again, need work, will be asking quite a few more
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06/02/15

find the rectangular equation that has the following parametric equations x=2t-5 y=t^2+1
Parametric Equations.   
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06/01/15

algebra word problem!
A movie theater estimates that for each $0.50 increase in ticket price, the number of tickets sold decreases by 60. The current ticket price of $12.50 yields 1800 tickets sold. Set up and equation... more
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06/01/15

Help! Very confused!!
At a concert, 2/5 of the people were men. There were 3 times as many woman as children. If there were 45 more men than children, how many people were at the concert?
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06/01/15

My question is very hard for me
The population density must be a maximum of 10 animals per sq mile. In a rectangular wildlife preserve measuring 25 miles by 20 miles, wildlife biologist counted 3840 of the animals. Is there... more
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06/01/15

distance, speed, and time question
luisa travels 25 km in 15/4 hours. She walks part of the way at 4km/h and cycles the rest at 12km/h. How far did she walk?
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06/01/15

Solve each compound inequality. Give the solution set in interval form
3x+5<8 and 2x+5≥11
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