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dalvyx [7]
3 years ago
5

For the data shown in the stem-and-leaf plot, what is the effect on the mean and median of adding the value 10 to the data set?

A. The mean is decreased by about 0.7 and the median is decreased by 2. B. The mean is decreased by about 0.7 and the median is decreased by 3. C. The mean is decreased by about 1.2 and the median is decreased by 2. D. The mean is decreased by about 1.2 and the median is decreased by 3.
Mathematics
2 answers:
gavmur [86]3 years ago
6 0

Answer: the answer is (c)

Step-by-step explanation:

alekssr [168]3 years ago
5 0
The correct answer for the question that is being presented above is this one: "<span> C. The mean is decreased by about 1.2 and the median is decreased by 2." </span>For the data shown in the stem-and-leaf plot,  the effect on the mean and median of adding the value 10 to the data set is that t<span>he mean is decreased by about 1.2 and the median is decreased by 2.</span>
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John has decided to prepare an old field for his son's new horse. the length of the field is 10 meters less than 4 times its wid
tatuchka [14]

Answer: The total money invested in the field will be $1,623.80

Step-by-step explanation:

step 1

Find the dimensions of the field

Let

x -----> the length of the field

y -----> the width of the field

p=2(x+y)

p(4.80)=1,584

p=330m

we know that

The perimeter of the field is equal to

so

330=2(x+y)----> equation A

x=4y-10 ------> equation B

substitute equation B in equation A and solve for y

330=2(4y-10+y)

165=(5y-10)

5y=165+10

y+35

Find the value of x

x=4(35)-10+130

therefore

The length of the field is 130 meters and the width of the field is 35 meters

step 2

Find the area of the field

The area of the field is

A=xy

substitute

A=(130)(35)=4,550m2

step 3

Find the number of bags of seed

Divide the area by 460

4,550/460=9.89 bags

Round up to the nearest whole number

9.89 bags=10 bags

step 4

Find the cost of the seed

(10 )(3.98)=$19.8

step 5

Find the total money invested in the field

1,584+$39.8=$1,623.80

7 0
2 years ago
Read 2 more answers
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iogann1982 [59]

Answer:

Our radius is already given, 8.

8 x 3.14 x 2 = 50.24cm <-------- perimeter/circumference

8^2 x 3.14

64 x 3.14 = 200.96cm2 <------- area

Formula of a circumference:

2πr

2 x pie x radius (pie can be used as 22/7 or 3/4 most likely 3.14)

Formula of an area of a Circle:

πr^2

pie x radius squared (pie can be used as 22/7 or 3.14)

6 0
3 years ago
The grades of a science test are normally distributed. Thanh finds that his grade on the test has a z-score of –2.5. Which state
liraira [26]
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades. 
7 0
3 years ago
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12.73+0.06x=13.48+0.14x
Afina-wow [57]
X= -9.375. 0.06x-0.14x=13.48-12.73. -0.08x=0.75
3 0
3 years ago
Read 2 more answers
05.02 MC)
Natalka [10]

Add the two bases together, divide by 2 then multiply by the height.

8+6 = 14

14/2 = 7

7x5 = 35

The area is 35 square Feet

4 0
3 years ago
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