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3 years ago

A plane is flying parallel to the ground along ‾

Mathematics

1 answer:

Lyrx [107]3 years ago

3 0

See the attachment.........

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Express the following as decimal 75%

Allushta [10]

Answer:

75% in decimal is 0.75

Step-by-step explanation:

7 0

3 years ago

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A marble factory makes single marbles, then put them in boxes of 10, cartons of 100 and crates of 1,000. How can the marble fact

Luba_88 [7]

21 crates, 6 cartons, 5 boxes

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3 years ago

Find the meaure of the central angle the sector area is 169.56 and the radius is 9

BaLLatris [955]

Since the area of a circle is π $r^{2}$ , and our radius is 9 we know the total area to be 254.469, and the ratio of sector area to total area is 169.56/254.469 = .6663. There are 360 degrees in a circle, so: $c = 360(.6663)$ ≈ 240°

240 degrees

4 0

3 years ago

Can anyone help me with 15a b c

Pie

a. The independent variable is r. The dependent variable is m.

b. The domain is the set of numbers used in the independent variable. You can rent 0 videos, or 1 video, or 2 videos, etc., up to the amount of money you have. If you rent 0 videos, you are left with m = 30 - 3r = 30 - 3(0) = 30 - 0 = 30 dollars. If you rent 10 videos, you will have m = 30 - 3(10) = 30 - 30 = 0 dollars left. The domain is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. The range is {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30}. Both the domain and range are discrete.

c. I can't do it online.

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3 years ago

Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a variance of 2,250,000 and a mean

Svet_ta [14]

Answer: 0.1357

Step-by-step explanation:

Given : Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a variance of $\sigma^2=2,250,000$ and a mean life span of $\mu=13,000$ hours.

Here , $\sigma=\sqrt{2250000}=1500$

Let x represents the life span of a monitor.

Then , the probability that the life span of the monitor will be more than 14,650 hours will be :-

$P(x>14650)=P(\dfrac{x-\mu}{\sigma}>\dfrac{14650-13000}{1500})\\\\=P(z>1.1)=1-P(z\leq1.1)\ \ [\because\ P(Z>z)=1-P(Z\leq z)]\\\\=1-0.8643339=0.1356661\approx0.1357$

Hence, the probability that the life span of the monitor will be more than 14,650 hours = 0.1357

6 0

3 years ago