4 years ago

No solution 4x+2=4x+

Mathematics

1 answer:

ANTONII [103]4 years ago

5 0

Answer:

Any positive number will make this true.

Some answers it can be:

4x=2=4x+5

4x+2=4x+3

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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.

sp2606 [1]

Answer:

100

2. Above,

3. -200−200 ,

4. Below

3 0

3 years ago

Find all values of thetaθ, if thetaθ is in the interval [0degrees°, 360degrees°) and has the given function value cot thetaθ

Kobotan [32]

In the first quadrant, 0-90 degrees, the angle whose cotangent is is 45 degrees. The only other quadrant where cot theta is 1 is 3rd quadrant.

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Answer 45 , 225 degrees.

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3 years ago

The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000

mel-nik [20]

Answer:

0.018 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 60,000 miles

Standard Deviation, σ = 1500 miles

We are given that the distribution of tread life is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(brand will last between 56,850 miles and 57,300 miles)

$P(56850 \leq x \leq 57300) = P(\displaystyle\frac{56850 - 60000}{1500} \leq z \leq \displaystyle\frac{57300-60000}{1500}) = P(-2.1 \leq z \leq -1.8)\\\\= P(z \leq -1.8) - P(z < -2.1)\\= 0.0359 - 0.0179 = 0.018= 1.8\%$