(3x-8)° (4x-23)° fine the x

Mathematics

1 answer:

Veronika [31]3 years ago

7 0

You cannot find x.

Because both phrases are to the power of 0, we know that it is essentially 1*1

So:

(3x - 8)^0 (4x - 23)^0 = 1

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Answer:

Coefficient of variation (weight) = 15%

Coefficient of variation (volume) = 25%

Step-by-step explanation:

Let's begin by listing out the given information:

Population = 200, Average weight = 26 lb,

standard deviation (weight) = 3.9 lb,

Average volume = 8.8 ft³,

standard deviation (volume) = 2.2 ft³

Based on the data given, the manager will have to make a deduction by comparing the relative scatter of both variables due to the different units of measuring weight (pounds) and volume (cubic feet).

To compare the variation of the weight and volume, we use the coefficient of variation given by the formula:

Coefficient of Variation = (Standard deviation ÷ Mean) * 100%

⇒ $C_{v}$ = (σ ÷ μ) * 100%

For weight

σ = 3.9 lb, μ = 26 lb

$C_{v}$ (weight) = (3.9 ÷ 26.0) * 100% = 15%

$C_{v}$ (weight) = 15%

For volume

σ = 2.2 ft³, μ = 8.8 ft³

$C_{v}$ (volume) = (2.2 ÷ 8.8) * 100% = 25%

$C_{v}$ (volume) = 25%

∴ the relative variation of the volume of the package is greater than that of the weight of the package

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3 years ago

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An airplane flew with the wind for 2.5 hours and returned the same distance against the wind in 3.5 hours. If the cruising speed

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Answer:

60 miles per hour.

Step-by-step explanation:

Let r represent speed of wind blowing in miles per hour.

We have been given that the cruising speed of the plane was a constant 360 mph in air. The speed of the plane is the direction of wind would be $360+r$ .