3 years ago

What is the missing step in this proof?

1 answer:

7 0

I'm not really sure what I'm looking at... is it possible for you to take a better picture so I can look at the diagram if there is one + the rest of the steps?

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Which term of the AP. 8 , -4 , -16 , -28 ,......... is -880 ?

denis-greek [22]

Answer:

75th term

Step-by-step explanation:

hope it is well understood

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3 years ago

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Work out the total number of mobile phones sold in the 3 years

svetlana [45]

Answer: your wuestion isn’t specific enough.

Step-by-step explanation:

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3 years ago

If x < 5, then which of the following must be true? - x < 5 - x > -5 - x > 5 - x < -5

Nat2105 [25]

Answer:

-x > -5

Step-by-step explanation:

Let's start with a positive number less than 5.

4<5

likewise when applied to -x> -5

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3 years ago

What is the nth term of the sequence -2 -8 -18 -32 -50

andreev551 [17]

Answer:

-2n²

Step-by-step explanation:

Using the image attached:
We see that the second differences (blue ones) are all equal so we conclude that this is a quadratic sequence.
The quadratic sequence has the form:
$T_{n} = an^{2} +bn +c$