3 years ago

What’s the formula for the sequence 13,27,41,55,....

Mathematics

1 answer:

alexdok [17]3 years ago

4 0

Answer:

$t_{n}$ = 14n-1

Step-by-step explanation:

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11. Use the fact that 19 X 33 = 627 to solve the problems and justify<br><br> your reasoning

topjm [15]

<h2>19 X 33 = 627, justified.</h2>

Step-by-step explanation:

We have,

19 × 33 = 627

Use the fact and justify.

L.H.S. = 19 × 33

= (20 - 1) (20 + 13)

Using the identity,

(x - a)(x + b) = $x^{2}$ - (a - b)x - ab

Here, x = 20, a = 1 and b = 13

= $20^{2}$ - (1 - 13)20 - 1(13)

= 400 - (- 12)20 - 13

= 400 + 240 - 13

= 640 - 13

= 627

= R.H.S., justified.

Thus, 19 X 33 = 627, justified.

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4 years ago

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creativ13 [48]

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Word: five million, three hundred twenty-five thousand, six hundred three and seven hundred twelve thousandths

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3 years ago

How many terms are in the expression 2m²n + 2mn² - m + 3n + 9

IgorC [24]

Answer:

12 constant terms and 12 variable terms

Step-by-step explanation:

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HELP<br> PLEASE. <br> Simplify the expression.<br> x^2+2x-24/x^2-x-42

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Answer:

$\frac{x - 4}{x - 7}$

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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