08/26/15
f(x+h)-f(x)/h f(x)=4x^2
find and simplify the difference quotient x cannot equal zero for the function
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08/26/15
Find the equation of this line in slope intercept form.
involving the equation of a line through a given point, parallel to a second line. Assume that the line passes through the point (2,−2) and is parallel to the line through the points ( 2,6) and...
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08/26/15
mean value theorem
let f(x)= x3 + 3x2 -10x , so that f(1)= -6 and f(2)= 0. by the mean value theorem, there exist a number y in the open interval (0,1) such that f ’(1+y) = 6. the value of y turns out to be
a)...
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08/26/15
limit and convergent
lim (1/n+1 + 1/n+2 + ......... 1/2n) is equal to
n→∞
a) 0
b) 1
c) 2
d) loge2
the answer is loge2 , bt howi cant understand, it should be zero i think, please solve it, plz plz
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08/25/15
One morning the temperature in detroit was 8 degrees, the temperature in cleveland was -5 degrees that same morning. How much warmer was it in Detroit
I don't know how to solve this question , can somebody help me?
08/25/15
Find the Domain g(x)=1/x-3/x+9
How do you find the domain of this problem? I'm having a hard time understanding
Help with functions and graphs?
There are a couple questions on my summer pre cal packet regarding functions and graphs that I do not completely understand. I would appreciate if someone could help me understand how to do these...
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08/25/15
Word problem help?
Two pedestrians simultaneously left two villages 27 km apart and walked towards each other. The first one walked 4 km per hour, and the second walked 6 km per hour. After how many hours did the...
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08/25/15
Interval Notation
Let A = {x element R|-2 less than or equal to x less than or equal to 2} and B = {x element R|3 < x < 11}
Find A union B
Findi A intersection B
show it in interval notation
Thanks
08/24/15
Precal Homework...
The summit of Africa's largest peak, Mt. Kilimanjaro, consists of the northern and southern ice fields and the Furtwanger glacier. An article in the Proceedings of the National Academy of Sciences...
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08/24/15
algebra 2 problem
How do I figure this problem
Find the average rate of change of f(x) = x^2 +2a. = from 3 to 5b. = from-1 to 1c. = from 3 to 6
08/24/15
algebra 2 problem
Could someone help me answer this please find the function of f defined by f (x) = 2x/x^2+8(a) F(-1) =(b) F(-x) =(c) –f(x) =(d) F(x +h) =How do I simplify?
08/24/15
simplifying radicals
Nina says that 16+4 (2) cannot be simplified. George says that is can be simplified to 20 (2). who is correct? Explain how you know.
NOTE!!!!: the parenthesis represent a radical. I...
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08/24/15
Identify the beginning of a sample period for the function: (Please help no one answers my questions)
f (t) = 4sec(3t −6π)
a. x=2pi
b. x=1
c. x=2pi/3
d. x=pi
08/23/15
Is 48, 72, 108, 162 a sequence of arithmetic or geometric? Justify answer
This is an Alegbra 2 question
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08/23/15
Using a reference triangle, find the exact value of the expression: (Also is there any difference between using a reference triangle to find the exact value...
...or to just find the exact value)
cos (sin−1 x)
a. √(1+x2)
b. √(1-x2)
c. x/(√1-x2)
d. x/(√1+x2)
True or false. If true, why? If false, what is a counter example, and can you explain why it contradicts? Please
If f and g are differentiable and f(x)≤ g(x) on [a,b], then f'(x)≤g'(x) on [a,b]
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True or false. If true, why? If false, what is a counter example, and can you explain why it contradicts? Please
If f and g continuous function on [a,b] then (upper: b, lower a)∫f(x)g(x)dx=[(upper: b, lower a)∫f(x)dx]*[(upper: b, lower a)∫g(x)dx].
True or false. If true, why? If false, what is a counter example, and can you explain why it contradicts? Please
If F(x)= (upper: x, lower: 0) ∫√(t3+1)dt then F'(2)=3
the region bounded by y=0 and y=kx-x^2 is revolved around the y-axis to form a solid whose volume is 10.
what are the exact possible values of k? Hint: use cylindrical shells
08/23/15
The sum of the reciprocal of a number and the reciprocal of 5 less than the number is 7 times the reciprocal of the original number. Find the original number.
This is a math problem that has been giving me trouble for over 30 minutes now. I'm not quite sure how to tackle it.
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08/23/15
Elements and sets
A. List the elements of each of the following (roster method). Use '...' notation for infinite setsB = {x : x is an integer -3 < x < 4}B = {x : x is a positive integer and multiple of three}B...
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08/23/15
Could you help me with an algebra question?
To help sell more of a lower grade meat, a butcher mixes some premium ground beef worth $3.10/lb with 8lb of lower grade ground bee worth $2.05/lb. If the result was an intermediate grade of ground...
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center of mass
Particles A and B are located on the x-axis. The masses and positions of the particles are: mA = 12 grams xA = 2 mB= 8 grams xB = 10 What...
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