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4 years ago

I dont know how to do this one :(((

Mathematics

1 answer:

MaRussiya [10]4 years ago

3 0

Answer:

$y=1.8$

Step-by-step explanation:

You can compare the equation to slope intercept form where b = mid-line

$f(x)=5.6 sin(1.2x-2.3)+1.8$

$y=mx+b$

5.6 ⇒ m

$sin(1.2x-2.3)$ ⇒ x

1.8 ⇒ b

~Hope this helps!~

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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

Can 1,3,7 form a triangle<br> Hurry I need help ASAP

blondinia [14]

Answer:

What

Step-by-step explanation:

ellaborate, if its just the numbers then no.

7 0

3 years ago

I need help for Part A and B

Tamiku [17]

Step-by-step explanation:

The probability of wining is 1/4 so it's 25%. so if you win you either win one of 2 object, so we have to divide the chance of wining by the number of object, so (25%)/2

A it's ,12.5% chance of wining the mug

B yes, it will change if she pics the mug first, it will be 25% because it's guaranteed that she will get the mug if she wins

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4 years ago

Middle term of the product of (4x - 1)(2x + 5).

inna [77]

Answer:

Step-by-step explanation:

i know

4 0

3 years ago

Read 2 more answers

What is the slope of the line joining (8,8) and (12, 6)?

Anna71 [15]

Answer:

$\huge \boxed{ \boxed{ - \frac{1}{2} }}$

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\$

From the question we have

$m = \frac{6 - 8}{12 - 8} = - \frac{2}{4} = - \frac{1}{2} \\$

We have the final answer as

$- \frac{1}{2} \\$

Hope this helps you

6 0

3 years ago