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3 years ago

Can I get help with this? Ez points

Mathematics

1 answer:

VMariaS [17]3 years ago

6 0

9514 1404 393

Answer:

(-1, -1), (-1, 5), (2, -1)

Step-by-step explanation:

All of the blanks are filled with -1. (see attached)

_____

The attachment also shows the solutions that maximize or minimize the value of z.

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The distribution of ages of runners in a marathon is approximately normal. The oldest participant was 80 and the youngest was 13

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Answer: The mean is greater than the median

when finding the mean then add the numbers then divide them by the amount of numbers there are when finding the median find the middle number and if there is no middle number divide the 2 and that should be your mean

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3 years ago

What radian measure is equivalent to 160 degrees

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and 160 is x
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3 years ago

We want to find the zeros of this polynomial:

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3 years ago

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Ksju [112]

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4 years ago

A ship travels a distance of 200 nautical miles in 10 1/2 hours. how many knots did the ship average each hour? (One knot equals

exis [7]

Answer:

19.05 knots average per hour

Step-by-step explanation:

Distance traveled = 200 nautical miles

Time taken = $10\frac{1}{2}$ hours = $\frac{10\times2+1}2=\frac{21}{2}$ hours

To find:

How many knots did the ship average each hour ?

Solution:

Here, we are given the distance traveled and total time taken to travel the distance.

As per question statement, we have to find the average speed of the ship.

Formula for average speed is given as:

$\text{Average Speed = }\dfrac{\text{Total Distance traveled}}{\text{Total Time Taken}}$

Putting the values in the formula:

$\Rightarrow \text{Average Speed = }\dfrac{200}{\frac{21}{2}}\\\Rightarrow \text{Average Speed = }\dfrac{200\times 2}{21}\\\Rightarrow \text{Average Speed = }\dfrac{400}{21}\\\Rightarrow \text{\bold{Average Speed = 19.05 nautical miles per hour}}$

It is also given that 1 nautical mile per hours is equal to one know.

Therefore, the average speed can be written as:

19.05 knots average per hour

3 0

3 years ago