02/23/15

if the denominator is an even number,n, what is the sum of the series in terms of n
1/4 + 3/4= 1 1/6 +3/6+5/6=3/2 1/8+3/8+5/8+7/8=2
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02/22/15

What is the mass of a sample of water that receives 2000 calories and its temperature rises from 60 degrees C to a boil?
This is one of the questions on my review guide my teacher gave me and I have a test tomorrow and have no idea how to find the answer to this question! If someone could give the formula to find... more
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02/22/15

Pivot the system below in Matrix form.
Pivot the system about the element in row 2, column 1. [-7   -4|-4] [4   -10|6]
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02/22/15

He wants to fence off a rectangular garden using 7 meters of an existing wall as one side. If he has 15 meters of fencing what are the lengths of each side?
Also if he wants to fertilize the garden how many bags of fertilizer must he use if one bag will cover 2 square meters?  
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02/22/15

Formulate but do not solve the problem.
Cantwell Associates, a real estate developer, is planning to build a new apartment complex consisting of x one-bedroom units and y two-bedroom townhouses and z three-bedroom townhouses. A total of... more
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02/22/15

In my class of no more than 40 pupils there are exactly 10% more girls than boys. How many girls are there?
In my class of no more than 40 pupils there are exactly 10% more girls than boys. How many girls are there?   a. 10 b. 11 c. 18 d. 20  
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02/22/15

If f (5)= 4, f' (5)= -1, g (5)= 2, and g' (5)= -3, then find h'(5) for each of the following functions:
(a) h(x)= 3f(x)   (b) h(x)= -2g(x)   (c) h(x)= 2f(x) +5   (d) h(x)= -g(x) -1   (e) h(x)= 2f(x) +3g(x)
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02/22/15

If limx?1 f(x) = 2 and limx?1 g(x) = 4 (See Description for full Question)
If limx→1 f(x) = 2 and limx→1 g(x) = 4, find    (a) limx→1 (5f(x) + 3g(x))   (b) limx→1 [f(x)g(x)]   (C) limx→1 g(x) ÷ f(x)                 (d) limx→1 [5 + 2x - 3g(x)]
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02/22/15

How many books must the publisher produce and sell so that the production costs will equal the money from sales?
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed... more
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02/22/15

All 216 spaces were full of cars or motorcycles! I decided to start counting wheels. I counted a total of 690 wheels. How many cars and motorcycles?
I need to figure this problem out and explain each step.
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02/22/15

Please help me solve this!! Select the approximate values of x that are solutions to f(x) =0, where f(x) = -6x^2 +2x+4
a) {-0.67,1.00} b) {-6,2} c) {-0.33,-0.67} d) {-1.50,0.50}  
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02/22/15

math problem
F (x)=5x+6  F (7)= F (-10)= F (0)=
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02/22/15

A skier who keeps her speed constant under perfect control is going down a slope.
A skier who keeps her speed constant under perfect control is going down a slope. Her initial height is 300 m above the bottom of the hill and she descents from a rate of 10 m/s. a) I need help on... more
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02/22/15

1 lbs of candy 1: $1.05 | 1lbs of candy 2: $1.35 | candy 1 + candy 2 create worth $1.17 a lbs. | how many lbs of each candy were used to make 30 lbs
Please include all steps. I am very confused. Thank you for your time
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02/22/15

find three consecutive odd integers such that the smallest integer increased by 23 is equal to the sum larger two
Find three consecutive odd integers such that the smallest integer increased by 23 is equal to the sum of the larger two
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02/22/15

Factor Completely 48y^2+82y-70
48y^2+82y-70
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02/22/15

Fran and Winston have a combined income of $80,000.
One quarter of Winston's income is the same as one-sixth of Fran's income. How much does each person earn? 
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02/22/15

word problem
the jurassic zoo charges $5 for each adult admission and $3 for each child. the total bill for 135 people from a school trip was $471. how many adults and how many children went to the zoo?
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02/22/15

f(x)=-x^2+2x-5
determine the vertex indemnify the interval of increase rewrite the function in vertex form
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02/22/15

i need to sove the indefinite integral of (6x^2+4)/under root 5 of (x^3+2x-1)^3 dx
i need to solve integration of the above problem please help me solving it..
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02/21/15

Cobalt is element 27. Cobalt-60 is used in the medical treatment of cancer. How many neutrons and protons are contained in the nucleus of this isotope?
Cobalt is element 27. Cobalt-60 is used in the medical treatment of cancer. How many neutrons and protons are contained in the nucleus of this isotope? 27 neutrons, 33 protons 33 neutrons, 33... more
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02/21/15

what annual rate of interest would you have to earn on an investment of $3500 to ensure receiving $262.50 interest after 1 year?
I do not understand how to set this problem up and how I would find the answer.
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02/21/15

find two consecutive odd integers such that the smaller one is ten more than one- fifth the larger.
...............
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02/21/15

The line parallel to 3x+y=0, that has the same x intercept as y=3x-9? How did you get it.
The line parallel to 3x+y=0, that has the same x intercept as y=3x-9? How did you get it. I don't understand how to get my answer properly. Step by Step please
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02/21/15

I need help with Algebra! So I have to identify variables, show 2 equations, and find the solution.
Picky Painters charges a flat fee of $300 plus $20 per hour for labor. Color Creators charges a flat fee of $500 plus $12 per hour for labor. After how many hours of labor will the charges for each... more
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