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Ainat [17]
3 years ago
14

Which two choices are equivalent to the fraction below 4/6

Mathematics
1 answer:
valentina_108 [34]3 years ago
5 0

The choices b and c are equivalent to \frac{4}{6}.

Step-by-step explanation:

Step 1:

First, we need to bring the fraction \frac{4}{6} to its simplest form. To do so, we divide the numerator and the denominator by the greatest factor.

The greatest factor for 4 and 6 is 2. So we divide it by 2.

So \frac{4}{2}=2,  \frac{6}{2}=3, \frac{4}{6}= \frac{2}{3}.

Step 2:

Similarly, we need to do the same for all the given four options.

a. \frac{2}{4}, the greatest factor for 2 and 4 is 2. So we divide the fraction by 2.

So \frac{2}{2}=1,  \frac{4}{2}=2, \frac{2}{4}= \frac{1}{2}.

b. \frac{8}{12}, the greatest common factor for 8 and 12 is 4. So we divide the fraction by 4.

So \frac{8}{4}=2,  \frac{12}{4}=3, \frac{8}{12}= \frac{2}{3}.

For options c and d, 1 is the greatest factor so they cannot be simplified. They remain as they are.

Step 3:

So options b and c are equal to the simplification of \frac{4}{6} i.e. \frac{2}{3}.

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1) Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store.
densk [106]

Answer:

E) .0863

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

For this case we can find the sample proportion for each observation with the following formula:

\hat p = \frac{X}{n}

Where X represent the number of returns and n =100 for each case since the standard value used. Using the last formula we got:

p_1 = \frac{10}{100}=0.1

p_2 = \frac{9}{100}=0.09

p_3 = \frac{11}{100}=0.11

p_4 = \frac{7}{100}=0.07

p_5 = \frac{3}{100}=0.03

p_6 = \frac{12}{100}=0.12

p_7 = \frac{8}{100}=0.08

p_8 = \frac{4}{100}=0.04

p_9 = \frac{6}{100}=0.06

p_{10} = \frac{11}{100}=0.11

And now witht those values we can find the sample mean of proportions with the following formula:

hat p = \frac{\sum_{i=1}^n p_i}{n}= \frac{0.1+0.09+0.11+0.07+0.03+0.12+0.08+0.04+0.06+0.11}{10}=0.081

And we can find the standard error with the following formula:

SE= \sqrt{\frac{\hat p (1-\hat p)}{n}}=\sqrt{\frac{0.081(1-0.081)}{10}}=0.0863

So then the best option on this case is given by:

E) .0863

6 0
3 years ago
A 500-foot cable is attached to the top of a tower and is stretched tight to a point that is 350 feet away from the base of the
Fantom [35]

The angle of depression the cable forms is the arctan of the ratio of the

horizontal distance to the height of the tower which is approximately 35°.

Response:

B. 35°

<h3>Which method can be used to find the angle of depression?</h3>

Given:

Height of the tower = 500-feet

Horizontal distance from the (other)  point of attachment of the cable to

the base of the tower = 350-feet.

Required:

The angle of depression formed by the cable.

Solution:

The angle of depression is the angle, θ, the cable forms with the tower

from the top of the tower.

By trigonometric ratios, therefore;

tan(\theta) = \mathbf{\dfrac{Horizontal \ distance \ of \ cable \ from \ tower}{Height\ of \ tower}}

Which gives;

tan(\theta) = \dfrac{350}{500} = \dfrac{7}{10}

  • Angle \ of \ depression, \ \theta = \mathbf{ arctan \left(\dfrac{7}{10} \right) }\approx35^{\circ}

The best correct option is; <u>B. 35°</u>

Learn more about trigonometric ratios here:

brainly.com/question/13276558

8 0
2 years ago
PLS HELP THIS IS A TEST
Pie

Answer:

D: 7

Step-by-step explanation:

1.75 (7) + 4.50

12.25 + 4.50

= 16.75

16.75 < 20

8 0
3 years ago
It takes 15 seconds for danial to play a card game. if the probability of winning the game is 0.1 and he has two minutes before
ycow [4]
If Daniel has two minutes and each game lasts for 15 seconds then he has eight tries to win.  ( 120 seconds divided by 15 seconds = 8) And if his odds are .1 that means he has a 10% chance each game.  10% x 8 tries = 80% chance.  or .8
4 0
4 years ago
The minimum monthly payment for anita's credit card is 2% of her balance or $10, whichever is higher. if anita's balance at the
ioda

Answer:


  1. Step-by-step explanation:

⇒minimum payment is 2% of her balance or 10 bucks...whichever is greater...

<u><em>her balance is 360</em></u>

<u><em>2% of 360 =</em></u>

<em><u>0.02(360)</u></em><u><em> = 7.20</em></u>

<em><u>$ 10 is greater then 7.20 so ur answer is $ 10</u></em>

<em><u>pls mark as brainlesttttt</u></em>


5 0
3 years ago
Read 2 more answers
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