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Sever21 [200]
2 years ago
11

X/3=5 what does X equal

Mathematics
2 answers:
sdas [7]2 years ago
8 0

x/3 = 5

If you multiply both sides by 3, you get

x = 15

jolli1 [7]2 years ago
8 0

Answer:

x =15

Step-by-step explanation:

x/3 = 5

Multiply each side by 3

x/3*3 = 5*3

x = 15

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What is the product of 2x + y and 5x – y + 3?
andrew11 [14]
<h3>What is the product of 2x + y and 5x – y + 3?</h3>

<em>The polynomial product has the distributive property.</em>

<em>Step 1:</em><em> We have to distribute each term of the first polynomial to every term of the second polynomial.</em>

(2x + y) * (5x - y +3) = 2x(5x - y + 3) + y(5x - y + 3) =

= 10x² - 2<u>xy</u> + 6x + 5<u>xy</u> - y² + 3y =

<em>Step 2: </em><em>Combine like terms.</em>

= 10x² - y² + 3xy + 6x + 3y

Answer : 10x² - y² + 3xy + 6x + 3y

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8 0
3 years ago
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According to the University of Nevada Center for Logistics Management, 6% of all mer-
Fudgin [204]

Answer:

a) The point estimate of the proportion of items returned for the population of

sales transactions at the Houston store = 12/80 = 0.15

b) The 95% confidence interval for the proportion of returns at the Houston store = [0.0718 < p < 0.2282].

c) Yes.

We set an hypothesis and construct a test statistics. The test statistics result gives us:

Z calculated  = 2.2545, and this gives us the p-value = 0.0121. We assumed 95% confident interval. Hence, the level of significance (α) = 5%. Conclusively, since the p-value ==> 0.0121 is less than (α) = 5%, the test is significant. Hence, the proportion of returns at the Houston store is significantly different from the returns  for the nation as a whole.

Step-by-step explanation:

a) Point estimate of the proportion = number of returned items/ total items sold = 12/80 = 0.15.

b) By formula of confident interval:

CI(95%) = p ± Z*\sqrt{\frac{p*(1-p)}{n} }  =  0.15 \pm 1.96 *\sqrt{\frac{0.15*(1-0.15)}{80} },

CI(95%) = [0.0718 < p < 0.2282]

c) The hypothesis:

H_{0}: The proportion of returns at the Houston store is not significantly different from the returns  for the nation as a whole.

H_{a}: The proportion of returns at the Houston store is significantly different from the returns  for the nation as a whole.

The test statistics:

Z = \frac{\hat{p} - p_{0}}{\sqrt{\frac{p*(1-p)}{n} }}, where p_{0} is the proportion of nation returns.

Z calculated  = 2.2545, and this gives us the p-value = 0.0121. We assumed 95% confident interval. Hence, the level of significance (α) = 5%. Conclusively, since the p-value ==> 0.0121 is less than (α) = 5%, the test is significant. Hence, the proportion of returns at the Houston store is significantly different from the returns  for the nation as a whole.

6 0
2 years ago
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Softa [21]
1/6 which is ummmm 166
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3 years ago
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What is the sum of the measures of the interior angles of a 14-gon?
tensa zangetsu [6.8K]
The answer would be 154.3
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2 years ago
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The solution set of 14x - 71 = 9 is
const2013 [10]

Answer:

40/7

Step-by-step explanation:

14x - 71 = 9

14x=80

x=80/14

x=40/7

7 0
3 years ago
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