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3 years ago

Use long division to convert the rational number 4/9 to its equivalent decimal form. Upload a document showing all your work.

2 answers:

7 0

Its 0.4444444444444 repeating. all you have to do is divide 4 by 9 in calculator and you should get an answer close but if it says 0.4445, then it was simplified by the calculator.

skad [1K]3 years ago

5 0

Answer: 4/9 = 0.44444444444...

just do 4/9 you will get it

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1) y = |x+4| - 1 This needs to be graphed, please help!

otez555 [7]

Answer:

Attachment

Step-by-step explanation:

x = 0

y = | 0 + 4 | - 1

y = 4 - 1

y = 3

y = 0

0 = | x + 4 | - 1

1 = | x + 4 |

x + 4 = 1 => x₁ = 1 - 4 => x₁ = - 3

x + 4 = - 1 => x₂ = - 1 - 4 => x₂ = - 5

7 0

4 years ago

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 9 row of the same length, he has 3 chairs left ove

EleoNora [17]

Let the number of chairs in a row be x, then the total number of chairs is 9x + 3 = 7x + 19. i.e. 9x + 3 = 7x + 19; 9x - 7x = 19 - 3; 2x = 16 x = 16/2 = 8. Thus there are 8 chairs in each row. Therefore, the total number of chairs is given by 9(8) + 3 = 72 + 3 = 75.I hope that my answer is helpful! Let me know if you need something more :)

8 0

4 years ago

the length of a rectangle is equal to triple the width. if the perimeter is equal to 168 feet ,what is the length of the rectang

Leokris [45]

Answer:

The length of the rectangle = 63 ft

Step-by-step explanation:

Let us assume the width of the rectangle = m ft

So, the length of the rectangle = 3 x Width = 3 x m = 3 m ft

Perimeter = 168 ft

PERIMETER OF A RECTANGLE = 2 (LENGTH + WIDTH)

⇒ 168 ft = 2 ( 3 m + m)

or, 168 = 2 ( 4 m)

or, 8 m = 168

⇒ m = 168/8 = 21

or, m = 21 ft

Hence, the width of the rectangle = m = 21 ft

And the length of the rectangle = 3 x m = 3 x 21 = 63 ft

5 0

4 years ago

What is the measure of Angle A

babymother [125]

Answer:

m∠A=59

Step-by-step explanation:

There are 180° in a triangle.

A+B+C=180

A+99+22=180

A+121=180

A=59

3 0

4 years ago

Suppose that you want to estimate the mean pH of rainfalls in an area that suffers from heavy pollution due to the discharge of

labwork [276]

Answer:

The number of rainfalls is $n =96$

The answer to the second question is no it will not be valid this because from the question we are told that the experiment require one pH reading per rainfall so getting multiply specimens(used for the pH reading) from one rainfall will make the experiment invalid.

Step-by-step explanation:

from the question we are told that

The standard deviation is $\sigma = 0.5$

The margin of error is $E = 0.1$

Given that the confidence level is 95% then we can evaluate the level of significance as

$\alpha = 100 - 95$

$\alpha = 5 \%$

$\alpha =0.05$

Next we will obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table , the value is $Z_{\frac{\alpha }{2} } = 1.96$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} * \sigma }}{ E} ]^2$

substituting values

$n = [\frac{1.96 * 0.5 }{ 0.1} ]^2$

$n =96$

The answer to the second question is no the validity is null this because from the question we are told that the experiment require one pH reading per rainfall so getting multiply specimens(used for the pH reading) from one rainfall will make the experiment invalid

5 0

4 years ago