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2 years ago

8

one lap around a track is equal to one fourth of a mile. A horse ran a distance of 9 laps in 2 minutes and 30 seconds. What was

the horse's average speed in miles per hour

1 answer:

Goryan [66]2 years ago

5 0

13.3 repeating all you have to do is convert them into seconds and divide them by nine

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I<br> 4<br> (4, 3))<br> 2<br> 4 x<br> (1, -1)<br> The slope is positive v<br> Find the slope.

Cloud [144]

Answer:

the slope is 4/3

Step-by-step explanation:

so the equation of your problem would be y=4/3x-2

-2 is your y-intercept (or your b)

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2 years ago

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2 years ago

The revenue for a company producing widgets is given by y = -20x2 - 50x + 200, where x is the price in dollars for each widget.

lisov135 [29]

Answer:

The price is x = $2.779

Step-by-step explanation:

From the question we are told that

The revenue is $y = - 20x^2 - 50 x + 200$

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Generally at break even point the cost of production is equal to the revenue

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Using the quadratic formula to solve this equation we have that

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6 0

3 years ago

Read 2 more answers

You measure the weight of 38 bags of nuts, and find they have a mean weight of 78 ounces. Assume the population standard deviati

Ket [755]

Answer: The maximal margin of error is 4.822.

Step-by-step explanation:

Since we have given that

Number of bags = 38

Sample mean = 78 ounces

Standard deviation = 14.5 ounces

At 96% confidence interval for the true population mean bags of nut weight.

So, z = 2.05

As we know that formula for "Margin of error":

$z\times \dfrac{\sigma}{\sqrt{n}}\\\\=2.05\times \dfrac{14.5}{\sqrt{38}}\\\\=4.822$

Hence, the maximal margin of error is 4.822.

8 0

3 years ago