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sergiy2304 [10]
3 years ago
6

What is the formula for the general term of the arithmetic sequence 1, 5, 9, 13, …?

Mathematics
1 answer:
stiks02 [169]3 years ago
5 0
The formula is

             a(n) = a(n-1) + 4 .

But to completely describe the sequence you've given,
these specifications also need to be stated:

             a(1) = 1
and
             n > 1 .
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Elza [17]

Answer:

Complementary angles.

Step-by-step explanation:

Notice that \angle a=\angle AXY, \angle b = \angle YXB  and \angle BXC = 90\°, by given.

\angle AXB = \angle AXY + \angle YXB, by sum of angles.

\angle AXB + \angle BXC = 180\°, by supplementary angles definition.

\angle AXB + 90\° = 180\°\\\angle AXB = 180\° - 90\°\\\angle AXB = 90\°

Which means,

\angle AXB = \angle AXY + \angle YXB = 90\°

Therefore,\angle a + \angle b = 90\°, in other words, angles a and b are complementary by definition.

4 0
3 years ago
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agasfer [191]
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Based on the triangle given, determine the trig ratio of the cos 0
likoan [24]

Answer:

cos theta = 4/5

Step-by-step explanation:

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4 0
3 years ago
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2 years ago
F(x)=5500(1.65) <br> at what percent are the bacteria growing each hour
kodGreya [7K]
So exponenetial growth or decay

it goes like this
f(t)=P(1+r)^t
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i
P=initial amount
so
given
f(x)=5500(1.65)^t
f(x)=5500(1+0.65)^t
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3 0
3 years ago
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