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Mumz [18]
3 years ago
15

Four identical robots lie on the ground

Mathematics
1 answer:
iren [92.7K]3 years ago
3 0

Answer:

3’5”

Step-by-step explanation:

14/4

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The mean value of 8 numbers is 17. Three of these numbers (9, 11, and 20) are discarded.
Viktor [21]

Answer:

19.2

Step-by-step explanation:

You get the mean of a set of numbers by adding them and dividing the sum by how many numbers there are.  In this case, you don't know what the individual 8 numbers are, but you can find out what they add up to.

Mean = (sum) / 8

17 = (sum) / 8

17 x 8 = sum

136 = sum

Now take out the numbers 9, 11, 20, which reduces the sum by 40.  There are 5 numbers left and they add up to 136 - 40 = 96.

The new mean is 96 / 5 = 19.2

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3 years ago
Which item below displays UNLIKE TERMS. *
Arisa [49]

Unlike terms displays terms which are not the same. x+2y would be the answer.

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Greg is 10 years older than his brother gabe. He is also 3 times as old as gabe. How old is Greg?
Mashcka [7]

Answer: 30 i think 10x3=30

Step-by-step explanation:

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3 years ago
X2 + 2xy + y2 - m2<br> Factorise
Morgarella [4.7K]

Answer:

x^2 + 2xy + y^2 - m^2

= (x+y)^2-m^2

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3 years ago
2. A coin purse contains d dimes and q quarters. There are 20 coins in the purse, and the total value of the coins is $4.25. Whi
qaws [65]
B. D represents the amount of dimes and q represents the amount of quarters so that equals 20 coins total. 0.25q is the amount of quarters multiples by their cost, when added to 0.1d it equals 4.25.
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