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Evgesh-ka [11]
3 years ago
8

Here's a graph of linear function. Write the equation that describes that function. Express it in slope-intercept form.

Mathematics
1 answer:
vodomira [7]3 years ago
4 0

the y intercept is -3 because its touching (0,-3).

The graph goes right one and down five so the slope is -5

y=mx + b

y= -5x -3

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The second graph

Step-by-step explanation:

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3 years ago
A diver starts at the surface of the water and travels 8 feet to the bottom.
swat32

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On Graph B, at 0 seconds, the graph will be <u>0 or nothing.</u>

Then the graph will <u>increase</u> until 2 seconds.

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Eva makes a few dozen cupcakes and sells them for $8 a dozen. Which function represents the relationship between the money Eva e
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3 years ago
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6 0
2 years ago
The speed at which cars travel on the highway has a normal distribution with a mean of 60 km/h and a standard deviation of 5 km/
oee [108]

The z-score of the speed value gives the measure of dispersion of the from

the mean observed speed.

The probability that the speed of a car is between 63 km/h and 75 km/h is

<u>0.273</u>.

The given parameters are;

The mean of the speed of cars on the highway, \overline x = 60 km/h

The standard deviation of the cars on the highway, σ = 5 km/h

Required:

The probability that the speed of a car is between 63 km/h and 75 km/h

Solution;

The z-score for a speed of 63 km/h is given as follows;

Z=\dfrac{x-\bar x }{\sigma }

Which gives;

Z=\dfrac{63-60 }{5 } = 0.6

From the z-score table, we have;

P(x < 63) = 0.7257

The z-score for a speed of 75 km/h is given as follows;

Z=\dfrac{75-60 }{5 } = 3

Which gives, P(x < 75) = 0.9987

The probability that the speed of a car is between 63 km/h and 75 km/h is therefore;

P(63 < x < 75) = P(x < 75) - P(x < 63) = 0.9987 - 0.7257 = 0.273

The probability that the speed of a car is between 63 km/h and 75 km/h is

<u>0.273</u>.

Learn more here:

brainly.com/question/17489087

7 0
2 years ago
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