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3 years ago

5•x=12, what does x equal?

Mathematics

1 answer:

Nikolay [14]3 years ago

5 0

X equals 2.4 because to get x by itself you have to divide by 5 on both sides of the equation. That cancels the 5 out and you are left with x=2.4

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Which number line represents the solution to the inequality 22 > 10x

Anastaziya [24]

Answer:

$\large\boxed{x$

Step-by-step explanation:

$22>10x\qquad\text{divide both sides by 10}\\\\\dfrac{22}{10}>\dfrac{10x}{10}\\\\2.2>x\to\boxed{x$

<, > - open circle

≤, ≥ - closed circle

<, ≤ - draw the line to the left

>, ≥ - draw the line to the right

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4 years ago

How do you round to the thousandths place

Nady [450]

you must look to the ten-thousandths place, and if it is a 5 or higher, round up. if it is a four or less, round down.

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4 years ago

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If A = 2 −2 7 4 6 3 ; find matrix X such that X+A=O where O is a null matrix.

Juliette [100K]

Answer:

I think this is the correct answer for that question

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3 years ago

xpress 8/(1 - 2x)2 as a power series by differentiating the equation below. What is the radius of convergence? 4 (1 - 2x) = 4(1

poizon [28]

Recall that for |x| < 1, we have

$\dfrac1{1-x}=\displaystyle\sum_{n=0}^\infty x^n$

Replace x with 2x, multiply 4, and call this function f :

$f(x)=\dfrac4{1-2x}=\displaystyle4\sum_{n=0}^\infty(2x)^n$

Take the derivative:

$f'(x)=\dfrac8{(1-2x)^2}=\displaystyle8\sum_{n=0}^\infty n(2x)^{n-1}=\boxed{8\sum_{n=0}^\infty (n+1)(2x)^n}$

By the ratio test, the series converges for

$\displaystyle\lim_{n\to\infty}\left|\frac{(n+2)(2x)^{n+1}}{(n+1)(2x)^n}\right|=|2x|\lim_{n\to\infty}\frac{n+2}{n+1}=|2x|$

or |x| < 1/2, so the radius of convergence is 1/2.

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3 years ago

Please help answer the question

Studentka2010 [4]

Answer:

I am sure that answer is 18.

I hope you got it

6 0

4 years ago