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4 years ago

What is the cost to carpet a rectangular floor with a length of 25 feet and width of 18 feet

Mathematics

2 answers:

weeeeeb [17]4 years ago

7 0

How much does it cost? there is no cost specified

VMariaS [17]4 years ago

3 0

25 times 18 is 450 i need to know how much the carpet is per square foot to go from there

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On Monday, a company stock closed at a price of $30.80 per share. On Tuesday, it increased by $1.20 per share. On Wednesday, it

BARSIC [14]

The net change in stock from Monday to Friday is $ 3.2956.

Step-by-step explanation:

Given,

Price of stock on Monday = $ 30.80

On Tuesday, it increased by $1.20 per share.

On Wednesday, it fell by 6.25%

On Thursday, it fell by 4%

On Friday, it increased by 2.5%

To find the net change from Monday to Friday.

Formula:

If the value increased by a% in x, the value will be = x× $\frac{(100+a)}{100}$

If the value decreased by a% in x, the value will be = x× $\frac{(100-a)}{100}$

Solution:

Price of stock on Monday = $ 30.80

Price of stock on Tuesday = $ 30.80×1.20 = $ 36.96

Price of stock on Wednesday = $ 36.96× $\frac{(100-6.25)}{100}$

= $ 34.65

Price of stock on Thursday = $ 34.65× $\frac{(100-4)}{100}$

= $ 33.264

Price of stock on Friday = $ 33.264× $\frac{(100+2.5)}{100}$

= $ 34.0956

Hence,

The net change in stock from Monday to Friday is = $(34.0956-30.80)

= $ 3.2956

7 0

4 years ago

Read 2 more answers

What is the area of this shape?

Schach [20]

add this 4+2+4+4+5.75=19.75

6 0

4 years ago

Help please?!

Furkat [3]

Well from what i know here's what i would put........
-4 * -2 = 8 - 2 = 6
-4 * -1 = 4 - 2 = 2
-4 * 0 = 0 - 2 = -2
so it does represent a function......I really hope that helped!!

8 0

3 years ago

Hey sample has a sample proportion of .3 which sample size will produce the widest 95% confidence interval when estimating the p

Alex777 [14]

The sample size which will produce sample proportion of 0.3 and 95% confidence interval is 36.

Given sample proportion of 0.3, confidence level 95%.

A confidence interval of proportions is given by:

π±z $\sqrt{}$ π(1-π)/n

In which :

π is the sample proportion,

z is the critical value

n is the sample size.

Margin of error=z $\sqrt{}$ π(1-π)/n

z value for confidence level of 95% is 1.96

Margin of error=1.96 $\sqrt{0.3*0.7/n}$

The widest interval has the highest margin of error, since the margin of error and since the margin of error is inversely proportional to the sample size , a lower sample size generates a higher margin of error.

Hence sample size which is correct is 36.

Learn more about margin of error at brainly.com/question/24289590

#SPJ4

Question is incomplete as it also includes options like:

a)46

b)68

c)56

d)36.

3 0

2 years ago

Create a frequency distribution, find the midpoint, relative frequency, cumulative frequency and create a histogram for the foll

Scorpion4ik [409]

First sort the data:

24, 25, 25, 26, 28, 28, 28, 30, 30, 32, 32, 32, 34, 34, 35, 35, 36, 38, 39, 40, 40, 40, 40, 40, 42, 42, 44, 45, 45, 55

Not the size of this data (30) and the range, 55 - 24 = 31.

Now, 31/5 = 6.2, so split up the interval from 24 to 55 into the following 5 classes with equal size:

[1] 24 - 30.2

[2] 30.2 - 36.4

[3] 36.4 - 42.6

[4] 42.6 - 48.8

[5] 48.8 - 55

If a given data has a value in one of these sub-ranges, you place it in that group.

You would end up with the following frequency distribution:

[1] 24, 25, 25, 26, 28, 28, 28, 30, 30

[2] 32, 32, 32, 34, 34, 35, 35, 36

[3] 38, 39, 40, 40, 40, 40, 40, 42, 42

[4] 44, 45, 45

[5] 55

To get the relative frequencies for each class, count the number of data in each class and divide it by the total size of the dataset.

The relative frequencies in this case would be

[1] 9/30 = 3/10

[2] 8/30 = 4/15

[3] 9/30 = 3/10

[4] 3/30 = 1/10

[5] 1/30

The cumulative frequencies are the cumulative sums of the frequencies as you move up from one class to another:

• For any data less than 24, the cumulative frequency is 0

• Up to class [1], the cumulative frequency is 3/10

• Up to class [2], the c.f. is 3/10 + 4/15 = 17/30

• Up to class [3], the c.f. is 17/30 + 3/10 = 26/30 = 13/15

• Up to class [4], the c.f. is 13/15 + 1/10 = 29/30

• Up to class [5] and beyond, the c.f. is 29/30 + 1/30 = 1

The c.f.'s always range from 0 to 1 in this way.

The histogram should roughly look like the one I've attached.

3 0

3 years ago