10/10/16

Martin purchased some municipal bonds yieldi
Martin purchased some municipal bonds yielding 8% annually and some certificates of deposit yielding 11% annually. If Martin's investment amounts to $23,000 and the annual income is $2230, how much... more
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10/10/16

Help solving please.
Bobby paddle Tuscany in Tranquil Waters for three miles per hour for 2 hours. He then encounters a current in his Direction and paddle current for 1 hour to arrive at his destination. Returning, he... more
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10/10/16

how to use the chain rule with e in the funciton
My teacher confused me on the example where she said y=te^(-t2). Using the chain rule where its the derivative of the inner times the derivative of the outer I don't know how to do this because she... more
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10/10/16

i have 130 points of 310 current in the class and my maximum grade is 82.1% . How many total points will there be?
I'm trying to figure out how many points there will be total in the class at the end, this is the only information I was given about my grade status 
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10/09/16

Find the parametric equations and the symmetric equations for the line.
Find the parametric equations and the symmetric equations for the line.   The line of intersection of the planes x + 2y +3z = 1 and x - y + z = 1.   Please explain and thanks in advance!
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10/08/16

Pre-Calculus
If f(theta) = cos theta and f(a) = 1/4, find the exact value of f(-a)
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10/07/16

which of the following represents f(x)?
If f(x-3)=x2+x+1, which of the following represents f(x)?
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10/07/16

What's the value of f(6)?
f(x)=ax+b   In the function above a and b are constants. If f(0)=3 and f(3)=-8, what's the value of f(6)?
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10/07/16

lim as h approaches 0: (sqrt(4+h))- 2)/h
Please help me understand how to do this problem.
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10/07/16

The square of a number minus three times the number is 238. Find the number
IDK WHAT IT IS HELP 
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10/06/16

how to find the exact value of when the second derivative equals 0
Let f(x) = 9xe^x(a) Find the exact value of x so that f ''(x) = 0. so I found the second derivative to be f''(x)=9e^x(x+2). I plugged in zero and got 18, but it said that was wrong. Is there... more
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10/06/16

Area of a fenced garden with one side against the house so 3 sided
A homeowner has 64 feet of fence to enclose his garden. Only 3 sides of the garden need to be fenced because one side of garden is against the house. What dimensions will maximum the area?
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10/06/16

how long will it be before they meet?
Eddie and Tisha are walking to their classes at Stamford College. Eddie comes from his dorm room, walking at a speed of 3 miles per hour down a straight path. Tisha comes from the gymnasium on the... more
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10/05/16

Limit question
Consider the limit,  lim(??x→1 )  ( x2 −kx+k−1)/(x-1), where k is a real number,?? Compute the limit   The answer is 2-k, but do I get that?   thankyou for the help
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10/04/16

Y= -x^2-3x. I need to find the vertex, axis of symmetry y and x intercepts
someone please help me get the answers to this problem please and thanks 
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10/04/16

Find the inverse function of a half parabola
Help me find the inverse function of a half parabola -2x^2 + x - 2, where x > 1/4the homework system says f^(-1) (x) = -1/4 + √(-(x + 15/8) / 2) is not correct
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10/04/16

find the value of lim x-->4 ((f(x)-f(4))/(sqrt(2)-2))
Calculus homework, I don't understand the question though ):   It is a division, where (f(x)-f(4)) is the dividend and (sqrt(2)-2) is the denominator   The answer Choices are: 1. limit = 4... more
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10/04/16

Complex Numbers and Roots- i Term
(Find the value of X and Y that make each equation true)   1. 2x-20i=8-(4y)i 2. 5i-6x=(10y)i+2   (Find each Complex Conjugate)  3. i-3 4. 3i-4 5. 11i   6. The impedance of an electrical... more
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10/04/16

How to find the maximum area of a rectangle?
Ramon wants to fence in a rectangular portion of his back yard against the back of his garage for a vegetable garden. He plans to use 68 feet of fence, and needs fence on only three sides. Find the... more
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10/03/16

Please help me find y
Find all y such that the distance between the points (2,−9) and (1,y) is 15.   I have no idea how to do this problem...  
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10/03/16

No integers are irrational numbers true or false
which statement is false 
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10/03/16

Find the point equidistant from given points
For some reason I'm having a challenging time trying to figure out how to go about this problem. Do I use the midpoint formula or the distance formula maybe? Any help would be so appreciated... more
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10/03/16

He predicts that he will sell 280 bicycles for $ 360 . He also predicted that for each increase in the price of $ 10, he will sell 5 bikes less.
How many bicycles will he sell in this context? what is the maximum price that he can obtain? what will be the maximum revenue?
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10/02/16

Write a quadratic equation whose roots are -1 and -3 and leading coefficient is 2
It has to equal zero
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10/02/16

9 in2 : 2ft 2
9in2 : 2ft2
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