07/02/15

Differentiation Tangents and Normals
Find the equation of the tangent to the curve y=x+x^2 at the point where x=a. Find the values of a for which this line passes through the point P(2,-3).Hence, find the equations of the tangents... more
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07/02/15

if the value of a car depreciates by 60% over ten years, and its value in the year 2000 is $2500, what was its value in the year 1990?
I have the answer to this question, however I do not know how it is to get the answer. Somehow the answer is 6250.
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07/02/15

form a third-degree polynomial function with real coefficents such that -9 + i and -8 are zeros
 form a third degree polyomial function with real coefficients such that -9 + i and -8 are zeros
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07/02/15

Please help explain these questions
a. How many combinations are there of a set of n distinct objects taken r at a time? b. How many combinations are there of six distinct objects taken three at a time?
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07/02/15

sequences topic
two cars start together int he same direction from the same place. the first goes with the uniform speed of 10 m/h .the second goes at speed of 6 m/h in the first hour and increases the speed by... more
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07/01/15

solve problem
Rewrite TAN 44º in terms of an 46º angle and in terms of the reciprocal of a trigonometric function.   TAN 44º= ___  46º            = 1/(___  44º)
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06/30/15

What is 3 times 3
Let f(x) = x + 8 and g(x) = x2 − 6x − 7. Find f(g(2)).
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06/30/15

Annual salary
Karla recently received a 4% raise in her annual salary. If her new salary is $46,800, What was her salary before the raise?  
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06/29/15

If the cost, ,C,for manufacturing x units of a certain product is given by C=x^2-25x+35, find the number of units manufactured at a cost of $9385.
There are _____ units manufactured at a cost of $9385.
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06/29/15

Area bounded by two curves
What is the area of the region bounded by the curves y=2(x^2)-7 and y=2/x between x=1 and x=3? Please and thank you!
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06/29/15

Find the slope of the tangent line to each curve at the given point. y = square root x + 5; (4, 3)
I am having trouble with this Calculus Question.
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06/28/15

The perimeter of a rectangular field is 360 yd. The length is 40 yd longer than the width. Find the dimensions.
The perimeter of a rectangular field is 360 yd. The length is 40 yd longer than the width. Find the dimensions.
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06/28/15

How do you factor this into a polynomial?
A manufacturer of metal washers needs to determine the cross-sectional area of each washer. If the outer radius of the washer is R and the radius of the hole is r, express the area of the washer as... more
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06/28/15

A baseball team has home games on Thursday and Saturday. The two games together earn $4471.00 for the team.
Thursday's game generates $51.00 less than Saturday's game. How much money was taken in at each game?
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06/28/15

Is there any information on graphing complex numbers with imaginary numbers?
I can't find it anywhere so I made my own rules and equations but I wanted to know if it had been created already.
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06/27/15

solve problem
Given the function value and quadrant restriction, find θ    csc θ= -1.4663, interval (270º 360º)
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06/27/15

Need to know how many votes each candidate got if total votes is 4845 and one got 28% more of votes?
Word problem solving Two Variable Systems. I just need help setting the problem up. "In the local election for light commissioner, the incumbent commissioner received 28% more votes than his... more
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06/26/15

variable manipulation ( algebra 1 or 2)
 if (2x-y)/(x+y)= (3/4) then (x/y) is    f (2/5)   g(3/4)   h (7/2)   J(7/3)   K (7/5)    Please help
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06/26/15

solve the given equation
Solve the given equation using any of the methods you have learned. Round all answers to two decimal places when necessary. Check your answer(s) graphically or with a table. (Enter your answers as... more
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06/25/15

5x^2 - 7x+1 = 0
Compute the value of the discriminant and give the number of real solutions of the quadratic equation  
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06/25/15

2 cos 3 theta + 1=0
solve over the interval 0 degrees and 360 degrees
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06/25/15

60% of a class are boys and 40% are girls. 30% of the girls and 50% of the boys went for a trip. What fraction of the class didn't go for the trip?
60% of a class are boys and 40% are girls. 30% of the girls and 50% of the boys went for a trip. What fraction of the class didn't go for the trip?
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06/24/15

Against the wind a commercial airline in South America flew 1,008 miles in 4.5 hours.
Against the wind a commercial airline in South America flew 1,008 miles in 4.5 hours. With a tailwind the return trip took 4 hours. What was the speed of the plane in still air? What was the speed... more
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06/21/15

MEan value Theorem help!?
Verify that the hypotheses of the Mean Value Theorem are satisfied for each of the functions on the given interval, and find the value of "c" which Mean Value Theorem guarantees. f(x)= 4 − √x on... more
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06/20/15

Determine the Limit
L’Hopital’s Rule: lim x→∞ (e^x)/x^3
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