How do you expand this expression?
(3a-b)^3-Theres actually a rule that (a-b)^3 will equal a^3 - 3(a^2)b + 3a(b^2) - b^3.
So (3a-b)^3
would be:
27a^3 - 9ba^2 + 3ab^2 - b^3.-the ^3 means cubed, or
I can solve all this with completing the square of
but whatcan I do with the Extension (I mean the upper part of fraction)- are there any way that I can drop the square root so its solution will be e
And in general, can a trinomial with a number in front of the first coefficient (i.e. 7x^2 in this case) ever be factored (please refresh my memory)..., and if so, how?-There are two ways , I know bec
If 3x+3=6(y+2), then x-2y=
Can you please explain how you got to the answer too? thank you!!-3x + 3 = 6(y + 2)
3x + 3 = 6y + 12
3x - 6y = 9
x - 2y = 3-3x+3=6(y+2)
x + 1 = 2 (y+2)
x = 2y + 4 - 1
Hey.Im in an intro stat class, and I need to know how to find the equation of a regression line.Im not very math-minded, so could anyone give me some easy to follow steps or maybe an example problem?I
f(x)=2x+5
Itd odd I think because when I substitue -x it becomes -f(x) right?-All the answers so far are wrong.
The function is neither even or odd.
An even function satisfies f(x) = f(-x)
for all x.
m and n are natural numbers. 1/m + 1/n is equal to 0,1 , what is the sum of the values that n can take ?-Do you mean 1/m + 1/n = 1/10 ? (Your use of comma for decimal is ill-advised.)
If so then this
1. Simplify: Root 75x^2y^3Answer= 5xy root 3y
2. What is the vertex of the parabola represented by g (x) = -2x^2 + 8x + 1Answer (2,9)
3. Let f (x) = 8 over x-4, find f (-2)Answer: f (-2) = 4/3
4. L
If tanA = 2/3 and sinB = 5/√41 and angles A and B are in Quadrant I, find the value of tan(A + B)
Thanks in Advance!-sinB = 5/sqrt(41)
==> sin^2(B) = 25/41
cos^2(B) = 1 - sin^2(B) = 1 - 25/41 = 16/41
Solve the following equation for all values of x: abs.(x+3)-9=2x
(All answers must check, and absolute value problems have 2 answers.)
Please show work and explain how you got about to your an
Find the critical numbers of the function.
h(p) = (p - 3)/(p^2 + 1)
need an explanation thanks!-You need to find p such that h(p) = 0
h(p) = (1 * (p^2 + 1) - (p - 3) * 2p) / (p^2 + 1)^2
h(p) = (p^2
1.T. Rroofing manufacturing companys beginning inventory on January 1 was $1,463,850. The costs of the goods it produced durin the year was $3,828. Its ending inventory on December was $1,463,850.
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