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vodomira [7]
3 years ago
5

5/7 in simplest form

Mathematics
2 answers:
Hitman42 [59]3 years ago
6 0
It is in simpliest form because they have no common factors
ludmilkaskok [199]3 years ago
5 0
It is already in simplest form
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According to the key of a particular park map, every 8 inches on the map represents 3 miles of trails in the park. How many inch
MA_775_DIABLO [31]

Answer:

24 inches represents 9 miles in the map

Step-by-step explanation:

To solve this problem you take into account that 8 inches represents 3 miles and that x represent the number of inches for 9 miles. That is:

8 ------- 3

x ------- 9

This is simply a rule of three, then you calculate:

x=\frac{8\ x\ 9}{3}=\frac{72}{3}=24

Hence, 24 inches represents 9 miles in the map

8 0
3 years ago
What is the formula for the following geometric sequence? -5, -10, -20, -40
Brrunno [24]

Answer:

Subtract five, double, subtract 10, so on.

3 0
3 years ago
A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the stor
mixer [17]

Answer:

Critical value is t = 1.9901

Step-by-step explanation:

We are given the results of the sampling :

                                     In-House Credit Card                National Credit Card                    <u>Sample Size</u> :                              32                                                    50

<u>Mean Monthly Purchases </u>:      $45.67                                            $39.87

<u>Standard Deviation </u>:                $10.90                                             $12.47

Also, the managers wished to test whether there is a statistical difference in the mean monthly purchases by customers using the two types of credit cards, using a significance level α of 0.05.

<em>Firstly, we will specify our null and alternate hypothesis;</em>

Let \mu_1 = Mean Monthly Purchases of In-House Credit Card

     \mu_2 = Mean Monthly purchases of National Credit Card

So, Null Hypothesis, H_0 : \mu_1-\mu_2 = 0  {means that there is no difference in the mean monthly purchases by customers using the two types of credit cards}

Alternate Hypothesis, H_0 : \mu_1-\mu_2\neq 0  {means that there is statistical difference in the mean monthly purchases by customers using the two types of credit cards}

The test statistics that will be used here is <u>Two-sample t-test statistics</u>;

              T.S. = \frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p \sqrt{\frac{1}{n_1}+\frac{1}{n_2}  } }  ~ t_n___1+n_2-_2

where, \bar X_1 = Sample mean Purchases of In-House Credit Card = $45.67

           \bar X_2 = Sample mean Purchases of National Credit Card = $39.87

            s_p = pooled variance

            n_1 = In-house credit card sample = 32

            n_2 = National credit card sample = 50

So, degree of freedom of t-value here is (32 + 50 - 2) = 80

Now, at 0.05 significance level, t table gives critical value of t = 1.9901 at 80 degree of freedom.

<em>Therefore, the critical value assuming the population standard deviations are not known but that the populations are normally distributed with equal variances is t = 1.9901.</em>

4 0
3 years ago
3
Otrada [13]
When 2 lines are parallel to each other mean than they have same gradient
y=5x +2
Gradient=5

Let the parallel equation be y=5x +c
Since this equation pass through (4,7), means that the point satisfy the parallel equation
7=5(4)+c
C=7-20=-13
So the parallel equation required is y=5x-13

Hope this can help.
3 0
3 years ago
When P it was $55 how many units well the profit maximizing firm supply to the market a 30 be 40 C 50 D 16
topjm [15]

Answer:

C. 50

Step-by-step explanation:

Here we have to look at the given graph and find the answer.

The vertical axis represents the price and cost per unit. That is represented by P.

The horizontal axis represents the units of output, that is represented by q.

We need to find the number of units when p = $55.

By look at the graph of the curve MC, when P = $55, the number of units is 50.

Therefore, the answer is C. 50.

Hope this will helpful to understand the concept.

Thank you.

7 0
3 years ago
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