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kompoz [17]
3 years ago
15

Here are six number cards.

Mathematics
1 answer:
Natalija [7]3 years ago
8 0

Answer:

The three pairs are

-4 and 8

-2 and 6

-1 and 5

Step-by-step explanation:

<u><em>The correct question is</em></u>

Here are six number cards.

-4 -2 -1 5 6 8

Arrange the cards into three pairs with the same total.

step 1

Find the first pair

I take the numbers

-4 and 8

Adds the number to find out the total

-4+8=4

step 2

Find the second pair

I take the numbers

-2 and 6

Adds the number to find out the total

Remember that the total must be equal to the total of the first pair

-2+6=4 ---> is ok

step 3

Find the third pair

The remaining numbers are

-1 and 5

Check the sum

Remember that the total must be equal to 4

-1+5=4 ---> is ok

therefore

The three pairs are

-4 and 8

-2 and 6

-1 and 5

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Which of these equations is for a line perpendicular to y-3=5(x-2)?
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Answer:

C

Step-by-step explanation:

y-3=5(x-2)  (rearrange this to be in slope- intercept from) (add 3 to both sides)

y = 5(x-2) + 3   (distribute parentheses)

y = x(5) - 2(5) + 3

y = 5x -10 + 3

y = 5x - 7

recall that for a line with gradient m, the gradient of the perpendicular line will be - (1/m)

hence in our case, our gradient of the original line is 5, hence the gradient of the perpendicular line is -1/5

From the choices, the only one that is consistent with this is C

i.e choice C:

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6 0
3 years ago
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Ivenika [448]

Answer:

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Step-by-step explanation:

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That will be the case for an improvement in the method of production. Then, following the same example, a change in a better quality of the resource like, replacing the coal engines with diesel engine generates an improvement in the quantity supplied as it is more efficient and can be used

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mezya [45]

Answer:

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Step-by-step explanation:

i hope this helps :)

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Step-by-step explanation:

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Step-by-step explanation:

provided in the screenshot below

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