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3 years ago

The first four terms of an arithmetic sequence are 28, 20, 12, and 4. which term of the sequence is -36

1 answer:

7 0

For an arithmetic sequence, the nth term is the first term plus (n-1)×the differece
the first term is 28, the difference between each adjacent number is 8
so -36=(28)+8(n-1)
8(n-1)=64
n-1=8
n=9
the 9th term is -36

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Tresset [83]

Answer:

2 inches

Step-by-step explanation:

36 divided by 6= 6

So 12 divided by 6 is 2

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2 years ago

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Any help with this greatly appreciated.

Anestetic [448]

Put the equation in standard linear form.

$x'(t) + \dfrac{x(t)}{t + 5} = 5e^{5t}$

Find the integrating factor.

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Multiply both sides by $\mu$ .

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Now the left side the derivative of a product,

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On the right side, integrate by parts.

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2 years ago

A ladder leans against the side of a house. The angle of elevation of the ladder is 68° when the bottom of the ladder is 16 it f

choli [55]

Answer:

The length of the ladder = 6.5077 ft

Step-by-step explanation:

Given A ladder leans against the side of a house

Given the angle of elevation of the ladder is 68° when the bottom of the ladder is 16 ft from the side of the house

Let 'C' be the point of observation.

Given CA= 16 ft

From right angle triangle

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x = 6.5077

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Answer:

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Originally ΔT0 = 95 - 22 difference between 95 and room temperature

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ln (33/73) = -KT K = .794 / 5 = .159 where 5 is time to cool to 65 deg

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nasty-shy [4]

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