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3 years ago

10

The graphs show the weekly change in the water level in a rainwater storage tank. Which of the following regression lines would

result in the smallest sum of the residuals?

2 answers:

katrin2010 [14]3 years ago

8 0

The answer to your question Is C

Yuliya22 [10]3 years ago

7 0

I'm not 100% sure, but I'm fairly confident that it is C.

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You toss a coin four times. the first, second and third toss are heads. what's the probability of the fourth toss also being hea

Ilya [14]

They are independent, so it will be 50%.

5 0

3 years ago

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A factory produce bicycles at a rate of 110+0.5t^2-0.9t bicycles per week (t in weeks)

klasskru [66]

Answer:

221

Step-by-step explanation:

Day 8 is the first day of the second week.

Day 21 is the last day of week 3.

We need to know the n umber of bicycles made from t = 1 to t = 3

The function is b(t) = 110 + 0.5t^2 - 0.9t, where t is in weeks.

We need to integrate the function with the limits of 1 to 3.

$\int_{1}^{3} (110 + 0.5t^2 - 0.9t) dt$

$\int_{1}^{3} (110 + \dfrac{t^2}{2} - \dfrac{9t}{10}) dt$

$= 110t + \dfrac{t^3}{6} - \dfrac{9t^2}{20} \Biggr|_{1}^{3}$

$= 330.45 - 109.72$

$= 220.7333$

Answer: 221

3 0

3 years ago

Translate and simplify the expression the sum of fifteen and a number plus twelve

mr Goodwill [35]

I think it might be 15n + 12 sorry if it’s not

3 0

3 years ago

The functions f(x) and g(x) are shown below f(x) = 5x g(x) = 5x Which statement best describes the graph of f(x) and g(x)?

Tasya [4]

The functions supplied appear to be the same? Regardless:

We have the equation y = 5x.
Therefore the gradient of this graph will be 5, so for every 1 increase in the y axis, there will be 5 in the x.

It will appear as a straight line passing through the origin and the point (1, 5).

8 0

3 years ago

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Evaluate 3/7 r + 5/8 s when r is 14 and s is 8

forsale [732]

Answer:

11

Step-by-step explanation:

Making the appropriate substitutions, we get

3/7 r + 5/8 s => 3/7 (14) + 5/8 (8).

Notice how this can reduced:

3(14) 5(8)

----------- + --------- = 6 + 5 = 11

7 8

6 0

3 years ago