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kotegsom [21]
3 years ago
14

2. The 7th term of an A.P is 27 and the 12th term is 47, what is the sequence?

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

<h2>3 + 4(n - 1)</h2>

Step-by-step explanation:

let r be the common differenc of the sequence

Term 12 - Term 7 = (12 - 7)r

then

47 - 27 = 5r

then

20 = 5r

then

r = 4

term 7 = term 1 + (7 - 1)r

then

27 = term 1 + 6r = term 1 + 24

then

Term1 = 27 - 24 = 3

<em><u>therefore </u></em>

the standard explicit formula of the sequence is :

term 1 + (n - 1)r = 3 + 4(n - 1)

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Is this correct? Please let me know.​
Bond [772]

Answer:

yes

Step-by-step explanation:

5 0
2 years ago
How can I simplify these?
Schach [20]
Well the square root of 72 is 8.485 and the square root of 45 is 6.708. hope this helps :)
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3 years ago
A doctor orders 20 grams of a 52% solution of a certain medicine. The pharmacist has only bottles of 40% solution and bottles of
Anvisha [2.4K]
Try, please, this:
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4 0
3 years ago
Read 2 more answers
15 is 9 more than 5 j =
evablogger [386]

Answer:

15 = 9 + 5j

Step-by-step explanation:

When you want to make words become an equation, the word <em>is</em><em> </em>usually means <em>= </em>and <em>more</em><em> </em>usually means <em>+</em>.

In this case, we have 15 is 9 more than 5j.

We can rewrite this as 15 = 9 + 5j.

4 0
2 years ago
What is the value of x? round to the nearest hundredths place: <br> 0.45(x + 1.6) + 5x = 18
KatRina [158]

Answer:

3.600

Step-by-step explanation:

0.25(x+1.6)+5x=18

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8 0
3 years ago
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