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777dan777 [17]
3 years ago
6

Simplify the quotient . 4.5*10^3/9x10^7 Write your answer in scientific notation. Show your work.

Mathematics
1 answer:
drek231 [11]3 years ago
5 0

Answer:

Simplified from of given quotient is : \frac{1}{2}*10^{-4}

Step-by-step explanation:

We have given,

A quotient : \frac{4.5*10^{3} }{9*10^{7} }

We can simplify this quotient as:

\frac{4.5*10^{3} }{9*10^{7} }

or \frac{1*10^{3} }{2*10^{7} }

or \frac{1}{2}*10^{3-7}

or \frac{1}{2}*10^{-4}

This is the answer.


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A simple random sample of months of sales data provided the following information: Month Units Sold a. Develop a point estimate
Gnom [1K]

Answer:

a) X[bar]=93

b)S=5.39

Step-by-step explanation:

Hello!

<em>A simple random sample of 5 months of sales data provided the following information: Month: 1 2 3 4 5 Units Sold: 94 100 85 94 92 </em>

<em />

<em>a. Develop a point estimate of the population mean number of units sold per month. </em>

The variable of interest is:

X: Number of sales per month.

A random sample of n=5 months was taken, for each month, the number of units sold was recorded. To calculate the mean of the sample you have to add all the observed frequencies (Units Sold) by the sample size (n)

X[bar]= ∑X/n= 465/5=93

You can say that, on average, 93 units were sold over the 5-month period.

<em>b. Develop a point estimate of the population standard deviation.</em>

To calculate the sample standard deviation you have to calculate the variance and then its square root:

S^2= \frac{1}{n-1}[sumX^2-\frac{(sumX)^2}{n} ]

∑X= 465

∑X²= 43361

S^2= \frac{1}{4}[43361-\frac{(465)^2}{5} ]= 29

S= √29= 5.385≅ 5.39

I hope this helps!

3 0
3 years ago
A card is drawn at random from a standard 52-card deck. Events G and A are
kolezko [41]
P(G) is 26/52
P(H) is 8/52
See the rest in the photo

6 0
2 years ago
Don't know this please help me give brainly
Sergio039 [100]
Just pick random it’s helpful
6 0
3 years ago
Identify the property used in the first four steps to solve the equation 4(x-7)=2x-6
myrzilka [38]

Answer:

x = 11

distributive law

additive law

multiplication property

Step-by-step explanation:

Given in the question an equation

4(x-7) = 2x-6

Distributive law

a(b+c) = ab +ac

4x - 4(7) = 2x - 6

4x -28 = 2x - 6

Use the addition property of equality to reduce the 2x on the right.

4x - 2x - 28 = 2x - 2x -6

4x -2x -28 = -6

Use the addition property of equality to reduce -28 to zero on the left.

4x - 2x- 28 + 28 = -6 + 28

2x = 22

Use the multiplication property of equality to reduce 2x to just x

2x2 = 22/22

x = 22/2

x = 11

4 0
3 years ago
What’s the answer for y= (x-2)^2 +2 {x&lt;4.5}
stealth61 [152]

Answer:

x<4.5

Step-by-step explanation:

y =(x-2)^2 +2 {x<4.5}

add the power and then divide by 2 you get 4.5

8 0
3 years ago
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