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Arturiano [62]
3 years ago
5

The scatter plot shows the time spent watching TV, x, and the time spent doing homework, y, by each of 24 students last week.

Mathematics
1 answer:
evablogger [386]3 years ago
8 0

Answer:

y = - 0.833 + 29.5

y = 17

Step-by-step explanation:

Drawing a best fit line through the data points:

The approximate regression model would have an intercept of about 29.5

The slope = Rise / Run = (y2 - y1) / (x2 - x1)

The slope = (5 - 25) / (27 - 3) = 20 / 24 = -0.8333

The regression equation is thus :

y = mx + c

m = slope ; c = intercept

y = - 0.833 + 29.5

B)

x = 15

y = - 0.833(15) + 29.5

y = -12.5 + 29.5

y = 17

Approximately 17 hours watching TV

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Harlamova29_29 [7]

Answer:

1. R = 8 ohms 2. V = 32 volts

Step-by-step explanation:

<h3>1. We have,</h3>

Voltage, V = 16 V

Current, I = 2 A

We need to find the resistance of the circuit. Using Ohm's law,

V = IR

So,

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2. Current, I = 8 A

Resistance, R = 4 ohms

We need to find the voltage of the circuit. Using Ohm's law again,

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Hence, this is the required solution.

6 0
3 years ago
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Yanka [14]

Answer:

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6 0
3 years ago
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A bag has 30 tiles, numbered 1-30. Write the ratio even tiles to odd tiles in simplest form.
guapka [62]

Answer:

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Step-by-step explanation:

<u>Ratio of Values </u>

A ratio compares two values by diving them. If the ratio is greater than one, then the value in the numerator is greater than the value in the denominator. The opposite relation gives ratios lower than 1. A ratio of 1 means both values are the same

We have a set of tiles numbered 1 to 30:

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4 0
4 years ago
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Scrat [10]

Answer:

486

Step-by-step explanation:

1,985 + 12,000 + x = 14,471

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3 years ago
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goldenfox [79]

Answer:

The answer is b.133

Step-by-step explanation:

180 is a straight line and if angle 2 is 47 then angle 3 would be 133 because 133+47=180

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