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2 years ago

I’ll rate u 5 stars quick response really fast what is the domain image

Mathematics

1 answer:

GaryK [48]2 years ago

5 0

Domain is all real numbers or (-oo,oo)
*oo= infinity

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F(x) = x+3/x find inverse

Tju [1.3M]

I am unable to solve this problem.

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3 years ago

will give brainliest The polygons are similar, but not necessarily drawn to scale. Find the value of x.

Serggg [28]

Answer:

I'm in eight grade so don't assume i'm right. But from looking at this. It looks like x-1=8 and y+1= 28. I'm only doing High School Math 1 in eight grade tho. So if i'm wrong i'm sorry

Step-by-step explanation:

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3 years ago

What is the ratio for crayons to erasers?

gladu [14]

Answer:

8:4 simplified to 4:2 simplified to 2:1

Step-by-step explanation:

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3 years ago

In a manufacturing process a random sample of 9 bolts manufactured has a mean length of 3 inches with a standard deviation of .3

Serggg [28]

Answer:

The correct option is (C) (2.769, 3.231).

Step-by-step explanation:

The confidence interval for mean when the standard deviation is not known is:

$CI=\bar x\pm t_{\alpha/2, (n-1)}\frac{s}{\sqrt{n}}$

Given:

$\bar x = 3\\s=0.3\\n=9\\\alpha =1-0.95=0.05$

Compute the critical value as follows:

$t_{\alpha/2, (n-1)}=t_{0.05/2, (9-1)}=t_{0.025, 8}=2.31$

**Use a <em>t</em>-table.

The 95% confidence interval for true mean length of the bolt is:

$CI=\bar x\pm t_{\alpha/2, (n-1)}\frac{s}{\sqrt{n}}\\=3\pm 2.31\times \frac{0.30}{\sqrt{9}}\\ =3\pm 0.231\\=(2.769, 3.231)$

Thus, the 95% confidence interval for true mean length of the bolt is (2.769, 3.231).

The correct option is (C).

7 0

3 years ago

What is 36cm rounded to the nearest integer

anygoal [31]

Answer:

36 cm

Step-by-step explanation:

6 0

3 years ago