3 years ago

Write an th explicit formula for an the n term of the sequence 15, 13, 11, ....

Mathematics

2 answers:

Alborosie3 years ago

4 0

Answer:

n=-2

Step-by-step explanation:

Because when you are looking at the numbers they drop by two, so the answer must be decreasing by n= -2.

Misha Larkins [42]3 years ago

3 0

Answer:

17-2n

Step-by-step explanation:

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Iteru [2.4K]

Answer:

28.574

Step-by-step explanation:

18.2 x 3.14 then divied by 2

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3 years ago

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How many natural numbers from 78 to 24?

I am Lyosha [343]

54 numbers is the answer

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3 years ago

Identify the property demonstrated: 43 • 47 = 43+7 A. Product of Powers Property B. Quotient of Powers Property C. Power of a Pr

N76 [4]

Answer:

I think the answer is A

Step-by-step explanation:

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3 years ago

Simplfy 5x-x-3y+5x plz?

igor_vitrenko [27]

Answer:

9x-3y

Step-by-step explanation:

5x-x-3y+5x

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9x-3y

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3 years ago

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The sum of the digits of a two-digit number is 8. The difference between the number and the reversed number is 10 more than the

Vesna [10]

Answer:

The number is 62

Step-by-step explanation:

Let the digits of the number be T and U;

A 2 digit number is represented as: 10T + U

So,

$T + U = 8$

$10T + U - (10U + T) = 10 + 10U + T$

Required

Find the digit

Make U the subject in the first equation

$U = 8 - T$

Substitute 8 - T for U in the second

$10T + U - (10U + T) = 10 + 10U + T$

$10T + 8 - T - (10*(8-T) + T) = 10 + 10(8 - T) + T$

$10T + 8 - T - (80-10T + T) = 10 + 80 - 10T+ T$

$10T + 8 - T -80+10T - T = 10 + 80 - 10T+ T$

Collect Like Terms

$10T + 10T - T- T + 8 -80 = 10 + 80 - 10T+ T$

$18T -72 = 90 - 9T$

$9T + 18T = 90 + 72$

$27T = 162$

$T = 162/27$

$T = 6$

Recall that:

$U = 8 - T$

$U = 8 - 6$

$U = 2$

<em>Hence, the number is 62</em>

5 0

3 years ago