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Black_prince [1.1K]
2 years ago
10

Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mean of

Mathematics
1 answer:
kozerog [31]2 years ago
6 0

Answer:

0 degree

Step-by-step explanation:

you know all the time the answer of the probality is 0 rarely any other dijit

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Hyun Woo is riding a ferris wheel. H t H(t) models his height (in m m) above the ground, t t seconds after the ride starts. Here
worty [1.4K]

Answer:

<u></u>

  • <u>53 seconds.</u>

Explanation:

The text and the model are garbled.

This is the question amended:

<em />

<em>Hyun Woo is riding a ferris wheel. H(t) models his height (in m) above the ground, t seconds after the ride starts. Here, t is entered in radians.</em>

<em>H(t) = -10 cos(2π/150 t)+10</em>

<em />

<em>When does Hyun Woo first reach a height of 16 m?</em>

<em />

<h2>Solution</h2>

<em />

When <em>Hyun Woo reaches a height of 16 m</em> the <em>model </em>states:

  • <em>16 = -10 cos(2π/150 t)+10</em>

<em />

Then you must find the lowest positive value of t that is a solution of the equation.

Solve the equation:

  • <em>16 = -10 cos(2π/150 t)+10</em>

  • 10cos(2π/150 t) = - 6

  • cos(2π/150t) = -0.6

  • 2π/150t = arccos(-0.6)

  • 2π/150t = 2.214297

  • t = 52.86s ≈ 53 s ← answer
4 0
3 years ago
A plane flies an average of 325 miles per hour for 7 hours. how many miles was the flight?
irakobra [83]
If a plane flies an average of 325 miles per hour, to find out 7 hours you will need to times 325 by 7. 
325 x 7 = 2275. 
therefore the flight for 7 hours was 2275 miles.

4 0
3 years ago
How do I solve this problem using the substitution method <br> x-3y=4<br> 4x-2y=26
Nastasia [14]
Top 1. Substitute 3y on both sides of the equation.
Bottom 2. Substitute 2y on both sides of the equation

3y and 2y cancel

Divide x by 4 and 26 by 4.

Is there die points on a graph or decimal?

I have not done this for years but there is many calculators that can show you step by step online. I recommend using these
5 0
3 years ago
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Jada had read 2/3 of a book . She has read 60 pages so far . How many pages are in the whole book?
user100 [1]
90 pages in the whole book
3 0
3 years ago
Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony
torisob [31]
9 more years
Tony will be 16 
Mr Jacob will be 64
16x4=64 
7 0
3 years ago
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