All categories

2 years ago

4x + y = 3

Mathematics

2 answers:

rosijanka [135]2 years ago

5 0

Answer:

The answer is -5

Step-by-step explanation:

Because it shows the y and that equals a negative number

cestrela7 [59]2 years ago

4 0

Answer:

-1

Step-by-step explanation:

You have to use simultaneous linear equation as there are 2 equations given

use the subtitution method as what I've shown above

Hope you can understand well

Stay safe!

You might be interested in

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

2 years ago

What is equilivent to 5xa

Gelneren [198K]

Answer: 5 * x * a

Step-by-step explanation:

It’s algebra

7 0

3 years ago

The 9th graders are selling tickets to raise money for a class field trip. They are selling student tickets for $5 and adult tic

Lubov Fominskaja [6]

For this answer I believe it would be best if you did it on paper

7 0

3 years ago

Can somebody help me?

melisa1 [442]

All I know is that it is not a function it is okay for the domain x to repeat but not the y

5 0

2 years ago

Read 2 more answers

Please help me solve!!

S_A_V [24]

Answer:

(2×1+2)+(2×2+2)+(2×3+2)+(2×4+2)

=28

8 0

3 years ago