All categories

3 years ago

Which is the graph of the line × -4y=20

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

8 0

I can't really graph it here but:
Slope: 1/4Y-Intercept: −5

You might be interested in

An office building has the dimensions shown. What is the volume of the building?

rodikova [14]

What are the dimensions of the building?

3 0

2 years ago

Read 2 more answers

The table represents a function. What is the value of f(–1)?

Afina-wow [57]

Answer : C

we need to the value of f(–1)

Table is given in the question

From the table ,

f(x) = 4 when x= -5, that is f(-5) = 4

f(x) = 0 when x= -1, that is f(-1) =0

f(x)= -1 when x=6, that is f(6) = -1

f(x)= -3 when x=9, that is f(9) = -3

So, the value of f(–1) = 0

3 0

3 years ago

Read 2 more answers

3 is what percentage of 12?

marin [14]

Answer:

25%

Step-by-step explanation:

First you have the fraction of 3/12 and need to turn it into a decimal. So to do that you divide 3 by 12 = 0.25. So your percent is 25%

6 0

3 years ago

A boy has as many sisters as brothers, but each sister has only half as many sisters as brothers. How many brothers and sisters

Elenna [48]

The boy would have 3 brothers and 3 sisters therefore in the family there would be 4 boys and 3 girls

7 0

3 years ago

The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal supplier that provides metal w

vampirchik [111]

Answer:

The 95 percent confidence interval for the true mean metal thickness is between 0.2903 mm and 0.2907 mm

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{0.000586}{\sqrt{59}} = 0.0002$

The lower end of the interval is the sample mean subtracted by M. So it is 0.2905 - 0.0002 = 0.2903 mm

The upper end of the interval is the sample mean added to M. So it is 0.2905 + 0.0002 = 0.2907 mm

The 95 percent confidence interval for the true mean metal thickness is between 0.2903 mm and 0.2907 mm

4 0

3 years ago