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tresset_1 [31]
4 years ago
13

Solve for y. 5(v+2) = -2(7v-3) + 9v Simplify your answer as much as possible

Mathematics
1 answer:
sveticcg [70]4 years ago
5 0

Answer:

v=-2/5 hope this is helpful

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Fine the slope of the line through each pair of points . (-8,-20),(5,2)
kozerog [31]

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-8, -20) and (5, 2). Substitute:

m=\dfrac{2-(-20)}{5-(-8)}=\dfrac{22}{13}

Answer: The slope is \dfrac{22}{13}

7 0
4 years ago
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What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the
marishachu [46]
The sum of all the measurements is just the average times the number.

\bar x = \frac{1}{n} \sum_{i=1}^n x_i

\sum_{i=1}^n x_i = n \bar x

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The average of the last two is 7.2 so their sum is 2 \times 7.2

That means the sum of the first 90 is 92 \times 7 - 2 \times 7.2

so the average of the first 90 is

 \dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556 cm



7 0
3 years ago
Which recursive formula can be used to generate the sequence shown, where f(1) = 9.6 and n > 1? 9.6, 4.8, 2.4, 1.2, 0.6, ..
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Hello,

The formula is f(n)= \dfrac{f(n-1)}{2}


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1024
/ \
32 32
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8 4 8 4
/\ /\ /\ /\
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/\ /\
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*(There wasn’t a little 10 to use so I just put 2^10 which is two to the tenth power)

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3 years ago
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