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Anna11 [10]
2 years ago
15

Suppose you make hot chocolate. It's too hot to drink, so you put it in the freezer to cool it off. If the original temperature

is 190 degrees Fahrenheit and the freezer is 0 degrees Fahrenheit, what will the temperature of the hot chocolate be after 3 minutes? (k = 0.12)
A.) 241.54 degrees

B.) 132.56 degrees

C.) 272.33 degrees
Mathematics
1 answer:
grandymaker [24]2 years ago
8 0

Answer:

B.) 132.56 degrees

Step-by-step explanation:

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valina [46]

Answer:

The probability is 0.683

Step-by-step explanation:

To calculate this, we shall be needing to calculate the z-scores of both temperatures

mathematically;

z-score = (x-mean)/SD

From the question mean = 78 and SD = 5

For 73

z-score = (73-78)/5 = -5/5 = -1

For 83

z-score = (83-78)/5 = 5/5 = 1

So the probability we want to calculate is within the following range of z-scores;

P(-1 <z <1 )

Mathematically, this is same as ;

P(z<1) - P(z<-1)

Using the normal distribution table;

P(-1<z<1) = 0.68269 which is approximately 0.683

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4 years ago
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3 years ago
Solve the equation. d-5/9=3/9
Aleks04 [339]

Answer:

d = 8/9

Step-by-step explanation:

All you have to do is add 5/9 to both sides.

d - 5/9 + 5/9 = 3/9 + 5/9

d = 89

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3 years ago
Identify all of the following that are prime number. 2,97,11,27,31,42,59,63,72, and 81
Mademuasel [1]
2, 11, 31, 59 and 97 are all prime numbers.
8 0
3 years ago
Read 2 more answers
2(2x - 8) = x - 46 ?
Anna [14]

Answer: X = -10

Step-by-step explanation:

Times two to the parentheses

Minus X from both sides, left with 3X-16=-46

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4 0
3 years ago
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