How to solve these math problems?
Simplify:
-3a(square root -112a^-1b^5c^21)
Find he x-intercepts and y-intercepts of each:
f(x) = -2x^3+6x^2+9x
g(x)=2x-1/2x^2+5x-3
10/18/15
statistical assistance
In a Harris poll, adults were asked if they are in favor of abolishing the penny. Among the responses, 1236 answered "no," 496 answered "yes," and 379 had no opinion.
What is the sample...
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10/18/15
Points on a plane??
Blocks of a city are represented on a coordinate plane. A person walks from point R (-3,7) to point S (-3,5) And then to point T (8,-5). Approximately how many blocks shorter is it to go directly...
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10/18/15
given the graph of the function f x below what happens to f x when x is a very small negative number?
Finding Vertical Asympotes
10/15/15
p(x)=2-(100/x)
The fixed cost is $20 (you have to pay the RA to keep him from reporting you to the IRS), the marginal cost is $0.05 per cookie. At the beginning of your first run, you priced your cookies at $2.00...
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10/15/15
for this rational function f(x)=x^2-3x-10/x^2-1 determine were possible.
1. for this rational function f(x)=x^2-3x-10/x^2-1 determine were possible.
i.the domain of the function.
ii. the coordinates of the x and y- intercept of the graph of function.
iii....
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10/14/15
can anybody help me
i want all important english word which we can convert into math language please any body give me guidance for math language
10/13/15
Let A and B be subsets of a universal set U and suppose n(U)=46, n(A)=9, n(B)=13, n(A intersect B)=6.
Compute:
1.) n(A' ∩ B) =
2.) n(B') =
3.) n(A' ∩ B') =
4.) How many subsets does A have?
5.) How many proper subsets does A have?
This is what I have so far:
1.) ?
2.) 33
3.) 30
4.)...
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10/13/15
doubt for word problem expert
Mr jones gave 40% of the money he had to his wife. he also gave 20% of the remaining amt to each of his three sons. half of the amt now left was spent on miscellaneous items and remaining amt of Rs...
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10/13/15
non liner math please help me
p=(x-4)3 + (x-4)3
2x1 + 3x2 > 6 and -3x1 -2x2 > -12
find the maximized profit
10/12/15
Calculus III Problem
At what angle does the circle x2+y2=2 intersect with the parabola y=x2?
10/12/15
Carl and mike start a 3 mile race at the same time. If mike ran at 6 miles per hour and finishes the race 7.5 minutes before Carl, how fast does Carl run
I don't know how to solve this math prblem
10/12/15
The amount of a fund given an initial investment of 10,000 dollars at an effective annual interest rate of 6% compounded continuously is given by A(t)=10000e•^.
The amount of a fund given an initial investment of 10,000 dollars at an effective annual interest rate of 6% compounded continuously is given by A(t)=10000e•^.06t
a.)does this function have an...
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This is a question for College Algebra
How many ounces of water must be added to 20 oz of a 15% salf solution to make a 6%salt solution?
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10/10/15
Parabolas Application Q3
A farmer decides to fence a new rectangular paddock with the greatest possible area, using an existing fence for one side and 40 metres of fencing to make the other three sides. Let the area of the...
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10/10/15
How large the sample should be in order to estimate the proportion to within 0.025 with 95% confidence, assuming that no previous study has been conducted
How large the sample should be in order to estimate the proportion to within 0.025 with 95% confidence, assuming that no previous study has been conducted
10/07/15
about 2.5% of the bulbs last longer than 6800 hours and about 16% of the bulbs last longer than 6500 hours. How long does the average bulb last.
light bulbs
10/07/15
Functions word problem
Christina owns a few fruit trees in her backyard and sells the fruit when it's ready. If her peach tree produces "p" pounds of fruit a day at a cost of f(p), what do the following expressions...
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10/05/15
The length of country and western songs is normally distributed and has a mean of 200 seconds and a standard deviation of 30 seconds. Find the probability that
The length of country and western songs is normally distributed and has a mean of 200 seconds and a standard deviation of 30 seconds. Find the probability that a random selection of 25 songs will...
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10/05/15
The mean annual income for people in a certain city (in thousands of dollars) is 45, with a standard deviation of 38. A pollster draws a sample of 41 people to
The mean annual income for people in a certain city (in thousands of dollars) is 45, with a standard deviation of 38. A pollster draws a sample of 41 people to interview. What is the probability...
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10/04/15
DO NOT LIKE MATH!!!!
COULD SOMEONE GIVE ME THE ANSWER PLEASE I CAN'T THINK ANYMORE!!!!
If np ≥ 5 and nq ≥ 5, estimate P(fewer than 7) with ne=14 and p = 0.5 by using the normal distribution as an approximation to...
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10/03/15
LOST IN TRANSLATION
Cannot figure this out
When two births are randomly selected, the sample space for genders is bb, bg, gb, and gg. Assume that those four outcomes are equally likely. Construct a table that...
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10/03/15
help me with this one!
f(x)=log(1+x)/(1-x) and g(x)=(3x+x2)/(3x2+1)
prove that (fοg)(x)=3f(x)
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