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Post New Question
All Questions
+0
229704 Questions
0
725
2
+4
Functions
Is it possible for two different inputs to give you the same output? Please give an explanation.😄
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xxchrisyxx
Aug 4, 2017
0
833
2
6/2(2+1)
6/2(2+1), why is my calculator saying it's 1, when this is saying 9?
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Guest
Aug 4, 2017
+1
819
1
+15
Verify whether the general solution y=excosx does satisfy the D.E. Y” -2Y’ + 2Y= 0
Verify whether the general solution does satisfy the D.E. Y” -2Y’ + 2Y= 0
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zzzzz
Aug 4, 2017
+1
914
1
+15
Solve the first order linear D.E. (y +1)Cosxdx = dy where the G.S. is given y e^∫p(x)dx = ∫Q(x) e^∫p(x)dx + C
Solve the first order linear D.E. (y +1)Cosxdx = dy where the G.S. is given y e^∫p(x)dx = ∫Q(x) e^∫p(x)dx + C
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zzzzz
Aug 4, 2017
+1
715
1
+15
Find a particular solution that satasfies the D.E f '(x)= 2x and its initial conditions f '(1)= 2, f(0)= -1
Find a particular solution that satasfies the D.E f "(x)= 2x and its initial conditions f '(1)= 2, f(0)= -1
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zzzzz
Aug 4, 2017
0
706
1
how should i solve this system of linear equation by substitution by first isolating x?
x + y = 9
-10x + 6y = 6
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Guest
Aug 4, 2017
+1
5
5234
1
solve y(1+x 2 )y'-x(1+y 2 )=0 and find a particular solution that satisfies the initial condition y(0)=√3
solve y(1+x2)y'-x(1+y2)=0 and find a particular solution that satisfies the initial condition y(0)=√3
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Guest
Aug 4, 2017
0
619
1
Math problems, please help
Two triangles are similar. One has side lengths of 12cm, 14cm, and y. The other has side lengths of 18cm, x, and z. Showing all your steps, solve for x.
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Guest
Aug 4, 2017
+9
1101
3
+752
Help with polynomials
Find the constant t such that (5x^2 - 6x + 7)(4x^2 +tx + 10) = 20x^4 -54x^3 +114x^2 -102x +70.
CPhill
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MIRB16
Aug 4, 2017
0
678
1
Geometry question need to know the answer soon!
What is the answer to this problem? If the sector area of a sector intersecting Arc AB is 30 and the radius is 15, then the measure of Arc AB is ___°. (Round your answer to one decimal place, if necessary.)
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Guest
Aug 4, 2017
0
4873
1
what is the answer
Sonji has $5.25 in nickels and dimes.The coin value can be modeled by the equation 0.10d + 0.05n = 5.25, where d represents the number of dimes and n represents the number of nickels. If Sonji has 21 dimes, how many nickels does she have?
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Guest
Aug 4, 2017
0
1042
2
Word problems, please send help!
I'm bad at word problems, so...
Please solve with all steps included (you don't have to do them all ;D)
1. Your test scores for the semester are 89, 86, and 87. What score do you need on your next test to raise your average
read more ..
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Guest
Aug 4, 2017
0
637
2
Math help pls?
(4x-3/-x+9) = (-3/-2)
Please solve for x
Also it helps to write it out as fractions
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Guest
Aug 4, 2017
0
662
2
Solve for x
1/5(x-8)=x-16
Solve for x and show all steps please.
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Guest
Aug 4, 2017
0
509
2
Please help!
b/12 = -6
What is b? Please include steps.
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Guest
Aug 4, 2017
0
4794
1
let f(x) = 4x-5 and g(x) = 3x, find (f-g)(x).
let f(x) = 4x-5 and g(x) = 3x, find (f-g)(x).
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Guest
Aug 4, 2017
0
761
0
statistic
a random sample of 144 patients at a local clinic had cataracts removed during the past year showed that an average age of 60 years with a standard deviation of 8 years a construction of a 95% confidence interval for the population mean is required . what
read more ..
Guest
Aug 4, 2017
0
708
1
+16
When proving a certain value is the limit using the ϵ-N convergence definition for sequences
Why can't you just remove a term by its self
ie (this is meant to be a very simplistic example), but why can't you just go x/(x^2+x-1) < x/(x^2-1), since this is for a sequence so it's assumed that x>0? Why is it that you
read more ..
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AspiringActuary
Aug 4, 2017
0
780
3
math question
what is math?
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Guest
Aug 4, 2017
0
556
1
Help
How Do I Get The Negative Symbol?
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Guest
Aug 4, 2017
0
598
2
Confused differentiation
f(x) = In((3x-4)3)
f(x) = In((3x-4)*(3x-4)*(3x-4))
f(x) = In(3x-4) + In(3x-4) + In(3x-4)
f'(x) = 1/(3x-4) + 1/(3x-4) + 1/(3x-4)
read more ..
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Guest
Aug 4, 2017
0
721
1
How would you differentiate this
In (Root(1-2x))
I personally would differetiate every component using every rule
Firstly the In:
read more ..
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Guest
Aug 4, 2017
0
764
2
ghw
square root of 8
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Guest
Aug 4, 2017
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