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10 POINTD! Please help me

18/10 = -1/10x what does x equal?-multiply by -10, x =-18. Remember that when working with fractions, multiply by the reciprocal. So 1/3x=1, you would multiply by 3, same thing here. When you multipl

Find the exact sum of sin(pi/3) + cos(pi/2)

Find the exact sum of sin (pi/3) + cos (pi/2) ? sin (π/3) = (√3)/2 cos (π/2) = 0 sin (π/3) + cos (π/2) = (√3)/2 Learn the unit circle...read your textbook...practice.-sin(pi/3) =sqrt3 /2 cos(pi/2)

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x + y = 4 x + 3y = 22-so lets use the first equation to get y, an

If f(x)= e^x, what is f′(e)? Please help!

If f(x)= e^x, what is f′(e)? I solved this and got lim h->0 (e^(x+h) - e^e)/h Can we have e^e because when I check in my calculator it shows as error!-You can certainly have e^e. e is just a number

How to solve this logarithm

log base 3 (x+4) + log base 3 (x-2) = 3 i know since its adding two things with the same base it would become: log base 3 (x+4)(x-2) = 3 but how would you solve from here?-use identity, a^(log base

How to calculate a grade

I am trying to get my grade up from an F and picked the largest pointed assighnments but how will it effect my grade? it will make my points be 170/252 would that be a c? a b??-It depends on what your

Solve this DE (by series)

It´s simple: y - (1/t)y=t^2 The problem is, the teacher asked us to solve this USING POWER SERIES METHOD. It´s non-homegenous, so i don´t know what to do. Someone help us?-Ill first clear the deno

Can someone help me with this math question

Given that the frequency(f) of a sound wave is the reciprocal of its period(T) what equation is equivalent to the formula fλ=v?-The reciprocal part is just telling you that f = 1/T. So just sub that i

Why is 1/√3 expressed as √3/3 and not left as is

people dont like irregulars in the denominator. simplifies the math in longer formulas-You so stupidReport Abuse-because in board exams, college entrance exams and other exams, all answers are rationa

Let f(x) = 1 + x + x^2 + x^3 + · · · + x^2011. Find f′(1)

Let f(x) = 1 + x + x^2 + x^3 +· · · + x^2011. Find f′(1) would you say f(x)= 1+x^(2011-n)?-Note that, if f(x) = 1 + x + x^2 + x^3 + ... + x^2011, then: f(x) = 1 + 2x + 3x^2 + ... + 2011x^2010. By le

Which of the following is equal to this ->

Problem -> http://i56.tinypic.com/2e65zzq.jpg Which answer is correct? -> http://i55.tinypic.com/255svuf.jpg Person to help gets Best Answer. Thanks :D-option A is right, for your question is (1+(1

Whats this answer to this problem its word problems algebra

can you please answer theses problems please. 1st, find three consecutive odd integers such that the same of the smallest and 4 times the largest is 61 . next juan is 8 years older than his sister in

What does this mean in statistics

_ X ~ N(μ,σ^2/n)-_ X follows a normal distribution with mean μ and standard deviation σ^2/n.

Use the definition of limit

Use the definition of limit to show that lim(n→∞) (n+1)/(n+2) = 1 im not sure what is definition of limit, but this is my way of doing it, (n+1) / (n+2) = (n+2-1) / (n+2) = 1 - 1/(n+2) = 1 -

Differential Equation: Arcsecant

Prove that the function on the right-hand is a solution of the differential equation on the left-hand: right hand:(1+x^2)y = xyleft hand:y = sqrt 1+x^2 Integration gives the following for the arcse
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