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zysi [14]
3 years ago
10

The ratio of the heights of two similar prymaids is 3:2

Mathematics
1 answer:
Charra [1.4K]3 years ago
4 0
What is the question?

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Help ill mark brainliest
Ann [662]

Answer:

f(4) = -10

g(2) = 30

Step-by-step explanation:

4 0
2 years ago
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9+10=?<br> A. 21<br> B. 4<br> C. 19<br> D. 18
snow_tiger [21]
The answer is c because if you have 9 legos and your friends gives you 10 You have now 19 legos
8 0
3 years ago
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Write an<br> explicit formula for An, the nth term of the sequence 7, -42, 252, ....
erik [133]

Answer:

A_n = 7(-6)^{n-1}

Step-by-step explanation:

<u>Key skills needed: Explicit formula, Geometric sequence</u>

1) This is a geometric sequence, meaning a constant (like 6 or 3.5) is being multiplied to every term. First we need to find the constant.

This can be done by doing -42 ÷ 7   or   252 ÷ -42

-42 ÷ 7 equals -6.

252 ÷ -42 also equals -6.

2) This means that constant is -6.

3) The general form for an explicit formula of a geometric sequence is:

a_n = a_1(r)^{n-1}

--> r means the constant (or common ratio) that is being multiplied.

--> a_1 means the first term

--> a_n means the "nth" numbered term (so a_3 is the 3rd term, a_{10} is the 10th term and so on).

--> n-1 is just the "n" in a_n minus 1.

4) We can use this formula to create an explicit formula for the geometric sequence in the problem.

--> r = -6 (Since we got -6 as the constant/common ratio).

--> a_1  = 7 (Since 7 is the 1st term)

This means that our formula would be --> A_n = 7(-6)^{n-1}

<em>Hope you understood and have a nice day!! :D</em>

8 0
3 years ago
Olivia thinks of a number she multiplies her number by 6 and gets an answear of -54 what was her original number
erastovalidia [21]

Answer:

-9

Step-by-step explanation:

7 0
2 years ago
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Sophia is going to invest $7,900 and leave it in an account for 6 years.
ehidna [41]

Answer:

r= 2.90%

Step-by-step explanation:

delta math

4 0
2 years ago
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