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Post New Question
All Questions
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237665 Questions
+1
2092
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+491
Help Please
Times for an ambulance to respond to a medical emergency in a certain town are normally distributed with a mean of 450 seconds and a standard deviation of 50 seconds.
Suppose there are 160 emergencies in that town.
In about how many emergencies
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Rom
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whosmans
Mar 25, 2019
0
2896
2
I need help with this probability question please
A group of people were asked whether they prefer soup or salad for lunch. The table shows the probabilities of the results.
soup no soup total salad 0.2 0.6 0.8 no salad 0.05 0.15 0.2 total 0.25 0.75 1.00
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Guest
Mar 25, 2019
+1
792
4
+53
Finding coordinates on curve where gradient of normal is 1
Hi there.
I was trying to solve the following question:
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bqrs01
Mar 25, 2019
+1
769
2
integrating w substitution
∫20 (x/sqrt(1+2x^2))dx
I got 1 as my final answer....but I'm not sure if thats correct. Even if it is right, would someone be able to go through this problem step by step?
also if anyone could help me with this following problem:
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Guest
Mar 25, 2019
+1
737
2
+104
it will all ways = it self.
1+1-1*1/1 will all ways = 1 or 0-9+ if you do other numbers
yes or no
explanation
and why does it happen.
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siembieda
Mar 25, 2019
0
707
1
+6
HELP PLEASE QUICK!!!!!
The polynomial f(x) has degree 3. If f(-1)=15, f(0)=0, f(1)=-5, and f(2)=12, then what are the x-intercepts of the graph of f(x)?
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Guestdieland
Mar 25, 2019
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740
0
Plato Math
Select the correct answer from each drop-down menu. Sue downloads music videos on her phone. The cost of the video downloads (in dollars) is given by the equation c = 2v, where c is the total cost of the videos and v is the number of videos. The constant
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Guest
Mar 25, 2019
+1
750
1
Did i answer correctly?
Solve the following by completing the square.
1. x2 – 6x – 4 = 0
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Guest
Mar 25, 2019
0
675
2
please help:(
1. If F(x) = ∫ x^2 3 (sqrt(1+2t))/t dt, what is F'(x)?
2. If F(x) = ∫ sinx -112 sqrt(t)dt, what is F'(x)?
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Guest
Mar 25, 2019
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2130
2
how the graph of each function can be obtained from the graph of f?
3. Suppose the graph of f is given. Describe how the graph of each function can be obtained from the graph of f. graphing is not necessary.
3a. y = f(x) + 4
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Guest
Mar 25, 2019
0
1075
1
how many linear factors each polynomial has?
9. State how many linear factors each polynomial has.
1. f(x) = x3 + 24x – 2x + 6 = 0
2. f(x) = x16 + 72x6 + x = 0
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Guest
Mar 25, 2019
0
2434
2
+13
Please help if you can...
1. Five thousand dollars compounded annually at an x% interest rate takes six years to double. At the same interest rate, how many years will it take $300 to grow to $9600?
2. Find all values of C such that 3^2c+1=28*3^c-9 . If you
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lizmissy
Mar 25, 2019
0
839
2
Help...please
Can someone break down the steps in this please i understand it but i want to be prepare fully for further questions like this..... 2x - y=9, 3y + x =1 ....i got through bit of it...but i dont understand how when you take 1-3y and subsititue for x
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Guest
Mar 25, 2019
+1
917
2
+845
Collisions in 1 dimension
My working out is abit long so please bare with me as i have tried this multiple times and still failed:
i was told to always find the momentum and coefficient of restitution
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YEEEEEET
Mar 25, 2019
0
667
1
help finding derivative
I was confused on how to find the derivative of this function:
y = log2(x/(x-1)
If anyone could help me, please and thank you!!!
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Guest
Mar 25, 2019
0
640
1
integral HELP!
how do i solve
∫ 4 3 e^(5-x)dx???
Rom
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Guest
Mar 25, 2019
0
980
4
Confirm
can someone surely confirm if the answer to this question is 126 or 47?
X1, X2...,X9 are nine points on the circumference of circle O. Line segments are drawn connecting each pair of points.
What is the largest number
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Guest
Mar 25, 2019
0
1800
3
+13
Need Help!
1. Earl puts $1,000 in an investment, which compounds annually at 5% every year. How much will be the investment
worth after six years?
2. Find x if 7^4x+10=7^2x
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lizmissy
Mar 25, 2019
0
896
4
QUICK HELP!
A Senate committee has 8 Republicans and 6 Democrats. In how many ways can we form a subcommittee of 5 members that has at least one member from each party?
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Guest
Mar 25, 2019
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