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Stolb23 [73]
3 years ago
10

I’m bad at this so can someone give me the answer please?

Mathematics
1 answer:
Kobotan [32]3 years ago
6 0
5. -6a-48
6. 36x+4
7. 30n+40
8. 1.8m+2

Yess
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Mean: 5
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Pythagoras anyone???
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I don't have a calculator on me lol.

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Find the equation of a line perpendicular to -x=4-y that passes through the point (-3,8)
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Answer:

  y = -x +5

Step-by-step explanation:

Solving the given equation for y, we have ...

  y = x +4

The slope of this line is the coefficient of x: 1. The slope of the perpendicular line will be the opposite reciprocal of this: -1/1 = -1. The y-intercept of the perpendicular line can be found from ...

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The perpendicular line has equation ...

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8 0
2 years ago
Jia is skipping a rock across a pond. The sequence {4.2, 3.57, 3.0345, 2.5793, …} describes the height of the rock on each succe
mylen [45]

Answer:

u_n=4.2(0.85)^{n-1}

Step-by-step explanation:

u_1=4.2\\u_2=3.57\\u_3=3.0345\\u_4=2.5793

Geometric formula sequence:   u_n=ar^{(n-1)}

(where a is the first term of the sequence and r is the common ratio)

To find the common ratio, divide one of the terms by the previous term:

r=\frac{u_2}{u_1} =\frac{3.57}{4.2} =0.85

From inspection, a=4.2

Therefore, u_n=4.2(0.85)^{n-1}

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Jaclyn started the week with $284.28 in her checking
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Answer:

$165.62

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284.28-40-48.39-30.27=165.62

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