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Whitepunk [10]
3 years ago
9

Y=X^2+5X+7 match each leading coefficient with its correct letter

Mathematics
1 answer:
Step2247 [10]3 years ago
3 0

Answer:

sdcfvgh

Step-by-step explanation:

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Louise has a $75 gift card for her favorite toy store. She buys a model car kit for $22.79 and a doll for $19.95. What is the re
Anni [7]

Answer:

Louise has a remaining balance of $32.76

Step-by-step explanation:

8 0
3 years ago
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
Find the product of 3/5x15
VashaNatasha [74]
The answer for this is 9
5 0
3 years ago
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Round 3,872.3155 to the nearest hundred
zlopas [31]

Answer:

3,872.32

Step-by-step explanation:

the nearest hundredth is 2 numbers on the right of the decimal sign. So you round up from 5 to get answer above.

6 0
3 years ago
A company hires five people for the same job for one week. The amount that each person is paid
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Answer:

20

Step-by-step explanation:

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3 years ago
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