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Effectus [21]
3 years ago
12

1. What types of numbers make up the set of rational numbers?

Mathematics
1 answer:
Ad libitum [116K]3 years ago
8 0

Answer:

Natural Numbers, Whole Numbers, and Integers are rational numbers.

Example: {1, 2, 3, -1, -2, -3}

Numbers with repeating decimals and terminating decimals are also rational.

Example: {2.34343434..., 3.45}

If a square root makes a perfect square, then it is rational.

Example: {√16, √100}

Hope this helps.

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Find an explicit rule for the nth term of the sequence. <br><br> 2, -8, 32, -128, ...
Akimi4 [234]
A1=2
a2=-8
a3=32
a4=-128

a2/a1=(-8)/2→a2/a1=-4
a3/a2=32/(-8)→a3/a2=-4
a4/a3=(-128)/32→a4/a3=-4

a2/a1=a3/a2=a4/a3=r=-4

an=a1*r^(n-1)
an=2*(-4)^(n-1)

The explicit rule for the nth term of the given sequence is an=2*(-4)^(n-1) 
8 0
3 years ago
Can someone please explain how to do this? thank you!
valkas [14]

Answer:

I belive the answer would be 452.16

Step-by-step explanation:

The formula to find the volume of a cylinder is v=\pi r^2h

h = height

r = radius

The radius for this is 4 and the height is 9

instert your number into your equation v=\pi (4)^2(9)

and from there i would just put it into a calculator and you get 144\pi or 452.3893-

8 0
3 years ago
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Svetlanka [38]
It is a perfect square

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Step-by-step explanation:

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