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shtirl [24]
3 years ago
12

A ferry is travelling at a constant speed back to the dock, as shown in the graph. Which

Mathematics
1 answer:
PolarNik [594]3 years ago
3 0

Answer:

<h2>y = -35x + 105</h2>

Step-by-step explanation:

The given graph represents a function between hours and miles.

To determine the equation that belong to this graph, first we need to find the slope using two points from the graph: (0, 105) and (3, 0).

The definition of slope is

m=\frac{y_{2} -y_{1} }{x_{2}-x_{1} } =\frac{0-105}{3-0}=\frac{-105}{3}=-35

Notice that the slope is -35. Remember that the slope is always the coefficient of variable x. So, the choice that has this slope is the right answer.

Therefore, the right answer is the last choice: y = -35x + 105

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Ok, so we have to find areas and subtract

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Answer:

The number of heads observed is 121.14 heads

Step-by-step explanation:

The formula for the z-score of a proportion is given as follows;

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{pq}{n}}}

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Hence, we have;

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