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3 years ago

What conclusions can you draw by comparing the mean and MAD repairs per vehicle for each type of Vehicle

1 answer:

5 0

The mean would tell you the average number of repairs per vehicle type. It is the total amount of repairs divided by the total number of vehicles.

The mean absolute deviation (MAD) describes how close the values are typically to the mean. It is an average of the distances the individual points are from the mean. Basically, it tells how spread out the data is.

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Find z1z2 if z1 = 2/5(cos63° + isin63°) and z2 = 10/3(cos117° + isin117°).

Airida [17]

Answer:

-10/3 is the answer

Step-by-step explanation:

Given are two complex numbers as

$z1=\frac{2}{5} (cos63 + isin63)\\z2=\frac{10}{3} (cos 117 + isin117})$

Recall Demoivre theorem as

(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)

Hence here we have sum of angles as

A+B = 63+117 =180

$z1z2=\frac{2}{5} \frac{10}{3} (cos180+isin180)$

= $\frac{-10}{3}$

Since sin180=0 and cos 180=-1

7 0

3 years ago

you bought 4 pairs of socks @ 2.29 each and one cap @ 5.98. With a sales tax of 4%, what was the total amount of the purchase?

coldgirl [10]

The Total amount should be $15.71

5 0

3 years ago

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What is the value of x? x= ____ units

Vera_Pavlovna [14]

∵ ΔSRQ is a right triangle
and RT⊥SQ
∴ x² = ST * TQ
∴ x² = 9 *16 = 144

∴ x = √144 = 12

3 0

3 years ago

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Part 2

cluponka [151]

Answer:

$\displaystyle f(t) = -16t^2 + 192t; Maximum$

Step-by-step explanation:

Maximum Value → Parabola opens downward [−A]

Minimum Value → Parabola opens upward [A]

See graph above

I am joyous to assist you anytime.

6 0

3 years ago

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A helicopter is hovering 100 meters above the ocean. Directly below it, a submarine is at a depth of 200 meters.The altimeter on

Nitella [24]

A helicopter is hovering 100 meters above the ocean. Directly below it, a submarine is at a depth of 200 meters.The altimeter on the helicopter reads 100 meters,which means it is 100 meters above sea level.The altimeter on the submarine reads 200 meters,which means it is 200 meters below sea level

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3 years ago

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