Brainliest to 1st person to get both correct!

Manda converted the following repeating decimal a fraction. Her work is shown below.

Butoxors [25]

In analyzing Manda’s work, she made a mistake instep 3, she did not subtract one x from the left side.

<h3>What is the fraction about?</h3>

Fractions are known to be the parts of a complete or whole numbers of objects. It is known to have a numerator and a denominator and when solving for it, the rule of BODMAS must be obeyed.

In step 3 we see that (image attached) she did not subtract one x from the left side. The right thing to do is to use x to cancel out on the both side and that will make the answer to be correct but she did not.

So her error is seen in step 3 and as such, option C is correct.

See full question in the image attached.

Options are

Analyze Manda’s work. Is she correct? If not, what was her mistake?

A. Yes, she is correct.

B. In step 2, she needed to multiply both sides by 10.

C. In step 3, she did not subtract one x from the left side.

D. In step 4, she did not simplify her fraction.

Learn more about fraction from

brainly.com/question/78672

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6 0

3 years ago

The area of the regular octagon is approximately 54 cm2. A regular octagon has an apothem with length 4 centimeters and an area

ExtremeBDS [4]

Answer:

The length of line segment AB = 3.4 cm.

Step-by-step explanation:

Given:

The area of the regular octagon is approximately = 54 cm²

A regular octagon has an apothem with length = 4 cm

AB = side of the octagon

To Find:

AB = side of the octagon = ?

Solution:

A regular octagon has an Eight equal Side

We Know that,

$\textrm{area of regular octagon}=\textrm{Perimeter}\times \frac{Apothem}{2}$

substituting the given values in equation we get

$54 = Perimter\times \frac{4}{2}\\ \\\therefore Perimeter=\frac{54}{2}\\ \\\therefore Perimeter = 27\ cm\\$

Now,

Perimeter = 8 × Side

∴ Perimeter = 8 × AB

∴ 27 = 8 × AB

∴ $AB =\frac{27}{8}\\ \\\therefore AB =3.375\ cm\\\\$

After rounded to nearest 10th we get

AB =3.4 cm

The length of line segment AB = 3.4 cm.

6 0

4 years ago

Read 2 more answers

True or False:

mylen [45]

Answer:

True

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Hdc produces microcomputer hard drives at four different production facilities (f1, f2, f3, and f4) hard drive production at f1,

OLEGan [10]

Let $D$ denote the event that an HD is defective, and $F_i$ the event that a particular HD was produced at facility $i$ .

You are asked to compute

$\mathbb P(F_2\mid D)$
$\mathbb P(F_4\mid D)$
$\mathbb P(D^C)$

From the definition of conditional probabilities, the first two will require that you first find $\mathbb P(D)$ . Once you have this, part (c) is trivial.

I'll demonstrate the computation for part (a). Part (b) is nearly identical.

(a)
$\mathbb P(F_2\mid D)=\dfrac{\mathbb P(F_2\cap D)}{\mathbb P(D)}$

Presumably, the facility responsible for producing a given HD is independent of whether the HD is defective or not, so $\mathbb P(F_2\cap D)=\mathbb P(F_2)\mathbb P(D)=0.20\times0.015$ .

Use the law of total probability to determine the value of the denominator:

$\mathbb P(D)=\mathbb P(D\mid F_1)+\mathbb P(D\mid F_2)+\mathbb P(D\mid F_3)+\mathbb P(D\mid F_4)$

We know each of the component probabilities because they are given explicitly: 0.015, 0.02, 0.01, and 0.03, respectively. So

$\mathbb P(D)=0.015+0.02+0.01+0.03=0.075$

and thus

$\mathbb P(F_2\mid D)=\dfrac{0.2\times0.015}{0.075}=0.04$

(b) Similarly,
$\mathbb P(F_4\mid D)=\dfrac{0.4\times0.03}{0.075}=0.16$

(c)
$\mathbb P(D^C)=1-\mathbb P(D)=0.925$

6 0

4 years ago

19 points Please do 2 4 5 & 6

Assoli18 [71]

The answer to the questions

4 0

4 years ago