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azamat
3 years ago
15

A recursive rule for a geometric sequence is a1=49;an=3an−1.

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0
I think it should be an= 49x3^(n-1)
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Sumathi says that the area of a triangle PQR is, A=1/2×8×7 CM. rajini says that it is A=1/2×9×7 cm. who is correct? give reason?
Alecsey [184]

Answer:

Rajini is correct, A = 1/2 × 9 × 7

Step-by-step explanation:

A = 1/2 × base × height

base = the leg bisected by the height, in this case leg QD = 9cm

height = 7cm in this case

4 0
3 years ago
A line has a slope of 0 and passes through the point (10, 4). What is its equation in
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y=4

Step-by-step explanation:

7 0
3 years ago
Write three numbers greater than 20 that have 9 as a factor
lesya692 [45]
First write the factors of 9:
9, 18, 27, 36, 45

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6 0
3 years ago
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150% of what number is 60
Mumz [18]
The answer is 40 because if you do 60/1.5 it equals 40 
3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7C%20%7Bx%7D%5E%7B2%7D%20%2B%203x%20%2B2%20%7C%20%3C%202x%20%2B%204" id="TexFormula1" titl
Snezhnost [94]

\\ \tt\hookrightarrow |x^2+3x+2|

Either

\\ \tt\hookrightarrow x^2+3x+2

\\ \tt\hookrightarrow x^2+3x+2x

\\ \tt\hookrightarrow x^2+5x+6

\\ \tt\hookrightarrow (x+2)(x+3)

\\ \tt\hookrightarrow x

Or

\\ \tt\hookrightarrow x^2+3x+2

\\ \tt\hookrightarrow x^2+x-2

\\ \tt\hookrightarrow x^2+2x-x-2

\\ \tt\hookrightarrow (x+2)(x-1)

\\ \tt\hookrightarrow x

So

\\ \tt\hookrightarrow x\in (-3,1)

7 0
2 years ago
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