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sveticcg [70]
3 years ago
14

A package weigh 4.25 kilograms .how many grams does the package weigh

Mathematics
2 answers:
sp2606 [1]3 years ago
8 0
425 grams is the answer :3
Dennis_Churaev [7]3 years ago
4 0
The Answer  Is
425.000

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Simplify the expression 8h + (-7.7d) -14 + 5d - 2.4h.
iren [92.7K]

Answer:

8h - 7.7d - 14 + 5d - 2.4h

5.6h - 2.7d - 14

7 0
2 years ago
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There are two major cell phone providers in the Colorado Springs, Colorado area, one called HTC and the other, Mountain Communic
Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

Hello!

The objective of this exercise is to compare the "Churn rate" between the two major cell phone providers in colorado springs.

For each provider, the number of subscribers was noted at the beginning and end of a month.

The study variables are:

X₁: Number of customers that cut ties with HTC over a month.

X₂: Number of customers that cut ties with Mountain Communications over a month.

To compare the churn rate of both companies, the parameters of interest are the population proportions of customers that stopped using the companies services over the given period.

The hypotheses of interest are:

H₀: p₁ = p₂

H₁: p₁ ≠ p₂

α: 0.01

The statistic to use is the standard normal approximation:

Z= \frac{('p_1-'p_2)- (p_1-p_2)}{\sqrt{'p(1 - 'p)[\frac{1}{n_1} + \frac{1}{n_2}  ]} } }

Z≈N(0;1)

HTC

n₁= 10000 customers (beginning of the month)

x₁= 190 customers (people that stopped using the company service)

sample proportion 'p₁= x₁/n₁= 190/10000= 0.019

Mountain Communications

n₂= 12285 customers (beginning of the month)

x₂= 215 customers (people that stopped using the company service)

sample proportion 'p₂= x₂/n₂= 215/12285= 0.0175

pooled sample proportion 'p= \frac{x_1 + x_2}{n_1 + n_2} = \frac{190 + 215}{10000 + 12285}

'p= 0.0182

Z_{H_0}= \frac{(0.019 - 0.0175) - 0}{\sqrt{(0.0182*0.9818)[\frac{1}{10000} + \frac{1}{12285}  ]} }

Z_{H_0}= 0.833

The p-value for this test is: 0 .4048

Note: Using the p-value method to decide over a hypothesis test, the decision rule is:

If p-value ≥ α, then you do not reject the null hypothesis.

If p-value < α, then you reject the null hypothesis.

The p-value < α, so the decision is to reject the null hypothesis.

With a significance level of 1%, there is enough evidence to conclude that there is a difference between the churn rate of the two cell phone providers.

I hope it helps!

3 0
3 years ago
4. Solve y = 7. y = 3x – 5.
kramer

Answer:

x=4

Step-by-step explanation:

if y=7 then 7=3(4)-5

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4 0
2 years ago
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I am in need of help
shutvik [7]

Answer:

The last one

Step-by-step explanation:

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2 years ago
this is a question on my nephew's homework but i think there is a typo can yall help? There are 34 stickers on the sheet 43 of t
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Step-by-step explanation:

Perhaps there's really a typo since 43 stickers that are big + x stickers that are little will definitely be a number greater that 34 since 43 > 34 already unless the number of little stickers is of a negative value, which is pretty unlikely here

6 0
3 years ago
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