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2 years ago

Which value represents the first two terms of the sequence a1=2 and an=-3(an-1)^2?

1 answer:

8 0

I'm not really sure what you're asking, but if you want to calculate the first two terms of the sequence after a1, then here's the answer:
If a1=2, then a2 = -3(a1 - 1)^2 = -3(2-1)^2 = -3*(-1)^2 = -3*1 = -3.
Then, a3 = -3(a2 - 1)^2 = -3(-3-1)^2 = -3(-4)^2 = -3*16 = -48.
I'm sorry if this is not what you wanted.

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0.005123 in scientific notation

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Step-by-step explanation:

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2 years ago

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2 years ago

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sammy [17]

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2 years ago

I need help. So it says to find the shaded area, and I'm not really good a things like this

krek1111 [17]

Answer:

86 cm²

Step-by-step explanation:

1) Calculate the area of the square

$A=lw\\A=20*20\\A=400$

Therefore, the area of the square is 400 cm².

2) Calculate the area of the circle

$A=\pi r^2\\$

$\pi$ we can substitute with 3.14. To find the radius, we divide the diameter of the circle by 2. 20 cm is the diameter of the circle, so therefore, its radius is 10 cm.

$A=3.14*10^2\\A=3.14*100\\A=314$

Therefore, the area of the circle is 314 cm².

3) Subtract the area of the circle from the area of the square

$A=400-314\\A=86$

Therefore, the area of the shaded region is 86 cm².

I hope this helps!

3 0

3 years ago

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