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natima [27]
4 years ago
7

Help needed on # three please it’s due tomorrow and it’s test prep

Mathematics
1 answer:
Elena L [17]4 years ago
6 0
What they’re asking for is a ratio:
Car’s weight:force required
You need 110 pounds to lift a 2500 pound car
2500:110
We can see each side is divisible by 10.
250:11
So the ratio is 250:11.








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What is the equation of the line best fit for the following data? Round the slope and y-intercept of the line to three decimal p
kari74 [83]

Answer:

y=1.383x-1.526

Step-by-step explanation:

The given data table is

x :        4       7       10       12       13

y :        5       7       12       14       18

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The general form of a best fit line is

y=mx+b         .... (1)

where, m is slope and b is y-intercept.

m=\frac{\sum_{i=1}^nx_iy_i-n\overline{x}\overline{y}}{\sum_{i=1}^nx_i^2-n\overline{x}^2}

b=\overline{y}-b\overline{x}

Using the graphing calculator we get

m=1.38321\approx 1.383

b=-1.52555\approx -1.526

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y=1.383x-1.526

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4 years ago
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