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dimulka [17.4K]
3 years ago
7

Please help I don't get this question

Mathematics
2 answers:
tiny-mole [99]3 years ago
7 0

Answer:

10x+30

Step-by-step explanation:

Distributive property is distributing what is in the parentheses.

To do that on this problem you have multiply each of these numbers by 10!

10 times x is 10x

10 times 3 is 30

Put them back together and you get 10x+30!

I hope this helps, and have a great day! :)

P.S. If you need a better explanation I can help. I just didn't want to make this to long.  :D

ahrayia [7]3 years ago
6 0
The first one: 10x+30
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Apply the distributive property and then combine like terms to write an equivalent expression
Norma-Jean [14]

x + 7(x + 1)

7x + 7

x + 7x + 7

8x + 7

x + 7(x + 1) = 8x + 7

8x + 7

3 0
3 years ago
Finding the Median from a Dot Plot
MAXImum [283]

Answer:

median rainfall for highland storms = 18mm

median rainfall  for lowland storms = 18mm

or

median rainfall  for lowland storms = 17mm if the list of numbers is

2  4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

Step-by-step explanation:

The median is the middle number of a sequence of ordered numbers.

The formula for the median is:

median = (n + 1 )/ 2

where n = total number of values

Note: the number that you find with this formula is the position. SO you have to go to the sequence of numbers and find the number that lies in that position.

Highland storms:

4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

The numbers are already in ascending order so we can proceed.

n = 15

∴ median = (15+1)/2

                = 16/2

                = 8

The median is the umber in the 8th position

so, the median rainfall for highland storms is 18mm

Lowland storms:

4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

The numbers are already in ascending order so we can proceed.

n = 15

∴ median = (15+1)/2

                = 16/2

                = 8

The median is the number in the 8th position.

∴  median rainfall for lowland storms is = 18mm

<u>Unclear: if this is the list of numbers: </u>

2  4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

then the median would be:

n = 16

median = (16+1)/2  

             = 17/2

             = 8.5

This means the median lies between the numbers in the 8th and 9th position.

∴ The median is =  (16 + 18)/2

                           = 34/2

                           = 17

5 0
3 years ago
Read 2 more answers
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Ludmilka [50]

Answer:

D

Step-by-step explanation:

surface area of cylinder

=(area of base)×2 + (area of curved surface)

=(\frac{20}{2} )^{2} \pi× 2 + 20\pi × 25

=2 × \pi × 10^{2} + 2 × \pi × 10 × 25

3 0
2 years ago
An equation is shown.
Anit [1.1K]
We take the equation 4x+y=5 and subtract 4x from both sides to get
                                              y = 5 - 4x
The answer to this question is <span>y=5−4x.</span>
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3 years ago
Y = 4x - 5 + 3 The domain of this function is . The range of this function is .
Katen [24]

Answer:

Negative infinity to infinity, 3 to infinity.

5 0
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