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Elden [556K]
3 years ago
9

ਇਕ ਐਕਸੈਲ ਵਰਕਬੁੱਕ ਵਿੱਚ ਹੁੰਦੀਆ ਹਨ ​

Mathematics
1 answer:
kompoz [17]3 years ago
5 0

Answer:

Cannot understand, please translate

Step-by-step explanation:

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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
Graph the function y = 4x4 - 8x2 + 4. Which lists all of the turning points of the graph? 0 (0,4) 0 (-1,0) and (1, 0) 0 (-1,0),
jeyben [28]

Answer:

(-1,0) (0,4) (1,0)

Step-by-step explanation:

The turning points are also called the critical points.  It is where the graph changes direction.

They occur at (-1,0) (0,4) (1,0)

7 0
3 years ago
Read 2 more answers
Please help me match these
Natalija [7]

Answer:

On the left, the first one goes with -3, the second one goes with 3, the third goes with -3, the 4th goes with 3, and the bottom one goes with 3.

Step-by-step explanation:

4 0
3 years ago
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A house painter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. Which ratio of gallon
-Dominant- [34]
Answer is A 5*6=30 9*6=54
7 0
2 years ago
The total cost for one year at the state university is $22,500. a student has the following help in covering the costs of school
Klio2033 [76]

Answer:

$630 Per Month

Step-by-step explanation:

$22,500-$10,000=$12,500-$4,400=$8,100-$1,800=$6,300/10Months

=$630

6 0
2 years ago
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