2 years ago

The pre image is awnser

Mathematics

1 answer:

Sergeeva-Olga [200]2 years ago

3 0

Answer:

The are no images in the bottom.

Step-by-step explanation:

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Student grades on a chemistry exam were: 77, 78, 76, 81, 86, 51, 79, 82, 84, 99

IrinaK [193]

Answer:

Step-by-step explanation:

A) Stem-and-leaf plot

stem leaf

5 1

7 6,7,8,9

8 1,2,4,6

9 9

B) Outlier

Could consider 51 an outlier.

3 0

2 years ago

If m=<3,-1> and n=<8,6>, calculate m+2n

Crank

Answer:52

Step-by-step explanation:

5 plus 5 equals 10

4 0

3 years ago

You must calculate the number of sheets of plywood needed for subflooring. Each sheet of plywood measures 4'by 8. The measuremen

snow_lady [41]

Answer:

25 sheets of plywood will be needed

Step-by-step explanation:

Each sheet of plywood measures $4ft*8ft=32ft^{2}$ .

We have to cover the surface of the house, minus the surface of the hole of the stairs.

$Surface _{to cover} = Surface _{house} -Surface _{hole}= (28ft*30ft)-(12ft*4ft)= 840ft^{2}-48ft^{2}=792ft^{2}$

To know how many sheets will be needed, we divide the surface to be covered by the surface of each sheet

$Sheets_{needed} =\frac{Surface _{house}}{Surface _{sheet}} =\frac{792ft^{2}}{32\frac{ft^{2}}{sheet} } = 24,75 sheets$

As we can't buy 0,75 of a sheet, we round it up, i.e. we will need 25 sheets of plywood for subflooring.

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3 years ago

A local electronics store raised its prices on headphones by 20%. The headphones that Stan wants to buy now cost $36. How much d

atroni [7]

You would do 36$ -20% =28.8

4 0

3 years ago

Please help me please please please

algol13

Answer:

Step-by-step explanation:

The lower quartile Q₁ is the value at the left side of the box, that is

Q₁ = 20

5 0

3 years ago

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