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serious [3.7K]
3 years ago
10

A cold drink initially at 40∘40∘ F warms to 45∘45∘ F in 4 min while sitting in a room temperature 71∘71∘ F. How warm will the dr

ink be in degrees Farenheit if left out for 25min? (Round your answer to the nearest tenth as needed.)
Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:

Math

Step-by-step explanation:

I dont know math

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Suppose that a stock is currently selling for $100. The change in the stock's price during the next year follows a normal random
Basile [38]

Answer:

The probability that the stock will sell for $85 or less in a year's time is 0.10.

Step-by-step explanation:

Let <em>X</em> = stock's price during the next year.

The random variable <em>X</em> follows a normal distribution with mean, <em>μ</em> = $100 + $10 = $110 and standard deviation, <em>σ</em> = $20.

To compute the probability of a normally distributed random variable we first need to compute the <em>z</em>-score for the given value of the random variable.

The formula to compute the <em>z</em>-score is:

z=\frac{X-\mu}{\sigma}

Compute the probability that the stock will sell for $85 or less in a year's time as follows:

Apply continuity correction:

P (X ≤ 85) = P (X < 85 - 0.50)

                = P (X < 84.50)

                =P(\frac{X-mu}{\sigma}

                =P(Z

*Use a <em>z</em>-table for the probability.

Thus, the probability that the stock will sell for $85 or less in a year's time is 0.10.

6 0
3 years ago
Just need help with it ngl don’t understand it
brilliants [131]

Answer:

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Step-by-step explanation:

6 0
3 years ago
PLEASE HELP
riadik2000 [5.3K]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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At the beginning of the day, it was -14 degrees. Throughout the day, the temperature increased 16 degrees. What was the temperat
konstantin123 [22]

Answer:

The temperature at the end of the day is 2 degrees

Step-by-step explanation:

Here, we are interested in calculating the temperature at the end of the day.

In the question, we are told that at the beginning of the day, temperature was -14 degrees.

But throughout the day, the temperature increased by 16 degrees;

Thus, the temperature at the end of the day = -14 degrees + 16 degrees = 2 degrees

7 0
3 years ago
Please show workings <br> Plssssssssss
Luda [366]

Answer:

The length of XY is 11.

Step-by-step explanation:

since the triangles are congruent to one another,

(4x-7)=(2x-3)

move the like terms to the other side

4x-2x=-3+7

2x=4

x=4

then subsitute x into the equation

2(4)+3

= 11

5 0
3 years ago
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