PLEASE HELP!!!! 20 POINTS!!!!

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

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Please help me please

Murljashka [212]

Answer:

its no big deal

Step-by-step explanation:

no big deal.

5 0

3 years ago

If lim x-> infinity ((x^2)/(x+1)-ax-b)=0 find the value of a and b

MAXImum [283]

We have

$\dfrac{x^2}{x+1}=\dfrac{(x+1)^2-2(x+1)+1}{x+1}=(x+1)-2+\dfrac1{x+1}=x-1+\dfrac1{x+1}$

$\displaystyle\lim_{x\to\infty}\left(\frac{x^2}{x+1}-ax-b\right)=\lim_{x\to\infty}\left(x-1+\frac1{x+1}-ax-b\right)=0$

The rational term vanishes as x gets arbitrarily large, so we can ignore that term, leaving us with

$\displaystyle\lim_{x\to\infty}\left((1-a)x-(1+b)\right)=0$

and this happens if a = 1 and b = -1.

To confirm, we have

$\displaystyle\lim_{x\to\infty}\left(\frac{x^2}{x+1}-x+1\right)=\lim_{x\to\infty}\frac{x^2-(x-1)(x+1)}{x+1}=\lim_{x\to\infty}\frac1{x+1}=0$

as required.

3 0

3 years ago

Pleasere answerrrrrrr

Troyanec [42]

Answer: the 2nd one

Step-by-step explanation: because i said so ur the dum one

3 0

3 years ago

A sunscreen preparation contains 2.40 % by mass benzyl salicylate. If a tube contains 3.0 oz of sunscreen, how many kilograms of

belka [17]

You need to know that:

1 ounce = 28.35 grams

So, 1 tube contains

3.0 oz × 28.35 = 85.05g total mass

Mass of Benzyl salicylate =

2.40/100 = Percentage of Benzyl salicylate (in numerical value)

= 0.024

0.024 × 84 = Mass of Benzyl Salicylate

=2.016g

If one tube contains

2.016g × 425 tubes

=856.8g

Then,

Converting into kg by (dividing by 1000)

=856.8 ÷ 1000

= 0.8568 grams

= 0.857g (3sf)

8 0

3 years ago

On the number line, which month`s temperature will be between April and May?

Over [174]

On the number line, April is represented by the number 15.
On the number line, May is represented by the number 20.

So, we have to find the month that is represented by a number that is between 15 and 20.

March is represented by the number 16, and is between 15 and 20.

So, on the number line, MARCH'S TEMPERATURE will be between April and May.

4 0

3 years ago