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3 years ago

1. Delia brushes her teeth 1/6 hour each day.

Mathematics

1 answer:

Travka [436]3 years ago

8 0

Part b = part 1 plus 7

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22/9 divided by 8, please hurry test is timed!

OverLord2011 [107]

Answer:

0.30(5)

the 5 is repeating

Step-by-step explanation:

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3 years ago

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It cost Luis $5 to park his car at a parking meter for 2 hours. What is the price to park for 1 hour? Draw mode or write a word

Y_Kistochka [10]

Answer: 2.5$

Step-by-step explanation: Since 1 hour is half of 2 hours and the price to park for 2 hours is 5. We can take half of the 2 hour parking price to find the 1 hour price.

5$/2 Hours = 2.5$ per hour

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3 years ago

8 to 2 power, -3 x 23 is

Nana76 [90]

23 x 8 is equal to 184. 23+23+23+23+23+23+23+23. 184 ÷ 8 = 123

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4 years ago

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How does a digit in the ten thousand place compare to a digit in the thousands place

dezoksy [38]

It is ten times bigger than the other

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3 years ago

Question 5: prove that it’s =0

mamaluj [8]

Answer:

Proof in explanation.

Step-by-step explanation:

I'm going to attempt this by squeeze theorem.

We know that $\cos(\frac{2}{x})$ is a variable number between -1 and 1 (inclusive).

This means that $-1 \le \cos(\frac{2}{x}) \le 1$ .

$x^4 \ge 0$ for all value $x$ . So if we multiply all sides of our inequality by this, it will not effect the direction of the inequalities.

$-x^4 \le x^4 \cos(\frac{2}{x}) \le x^4$

By squeeze theorem, if $-x^4 \le x^4 \cos(\frac{2}{x}) \le x^4$

and $\lim_{x \rightarrow 0}-x^4=\lim_{x \rightarrow 0}x^4=L$ , then we can also conclude that $\im_{x \rightarrow} x^4\cos(\frac{2}{x})=L$ .

So we can actually evaluate the "if" limits pretty easily since both are continuous and exist at $x=0$ .

$\lim_{x \rightarrow 0}x^4=0^4=0$

$\lim_{x \rightarrow 0}-x^4=-0^4=-0=0$ .

We can finally conclude that $\lim_{\rightarrow 0}x^4\cos(\frac{2}{x})=0$ by squeeze theorem.

Some people call this sandwich theorem.

6 0

3 years ago