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trapecia [35]
3 years ago
13

A cup of 205° coffee on a table in a 72° room loses approximately 15% of its temperature every minute until it reaches room temp

erature. The resulting exponential model for the temperature, t, after m minutes can be approximated by the model t = 133(0.85)m + 72.
What is the temperature after 22 minutes?
Mathematics
1 answer:
Kitty [74]3 years ago
7 0

The temperature after 22 minutes is 75.75 degrees

<h3>Equations and exspressions</h3>

Given the resulting exponential model for the temperature, t, after m minutes can be approximated by the model t = 133(0.85)^m + 72.

If the time used is 22 minutes, the required temperature dring this time is expressed as:

t = 133(0.85)^22 + 72

t = 3.725 + 72

t = 75.75

Hence the temperature after 22 minutes is 75.75 degrees

Learn more on functions and values here brainly.com/question/10439235

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The area of Miguel’s rectangular garden is 450 square feet. The garden is 9 feet wide.
Daniel [21]

Answer: 118 feet

Step-by-step explanation:

For a rectangular shape: Area = W × L

450 = 9 × L

450 ÷ 9

L = 50

Perimeter of a rectangular shape = 2L + 2W

Perimeter = (2 × 50) + (2 × 9)

= 100 + 18 = 118 feet

0 0
3 years ago
He Mercedes S-Class luxury vehicle depreciates by 32.4% after just one year. The starting price in 2015 was $70,000.
kumpel [21]

 the depreciation amount after one year for the Mercedes S-Class vehicle is $22,680 .

<u>Step-by-step explanation:</u>

Here we have , he Mercedes S-Class luxury vehicle depreciates by 32.4% after just one year. The starting price in 2015 was $70,000. We need to find What is the depreciation amount after one year for the Mercedes S-Class vehicle. Let's find out:

The starting price in 2015 was $70,000 , let's find price after one year i.e. in 2016 when Mercedes S-Class luxury vehicle depreciates by 32.4%  ,According to question following equation is framed as :

⇒ Price - \frac{Price(32.4)}{100}

⇒ 70,000 - \frac{70,000(32.4)}{100}

⇒ 70,000 - 700(32.4)

⇒ 70,000 - 22,680

⇒ \$47,320

Therefore ,  the depreciation amount after one year for the Mercedes S-Class vehicle is $22,680 .

4 0
3 years ago
The diameter of a circle is 18 meters. What is the circle's area?
Anarel [89]

Answer:

254.45 meters squared

Step-by-step explanation:

Well the radius is 9 and that squared is 81 then that times pi is 254.45.

3 0
4 years ago
Can A KIND SOUL HELP ME OUT??? ALL THE ANSWERS I SEE ARE WRONG FOR THIS PROBLEM!!!!!!!!!!:(((
valkas [14]

Answer:

x=y=z=106

Step-by-step explanation:

The upper line is a straight line, so x+74=180, x=106.

y and x are equal in measure as it's a pair of parallel lines and z=y as they are alternate interior angles

7 0
3 years ago
Whats the gratest common factor of 125 and 150
babunello [35]

Answer:

The GCF of 125 and 150 is 25.

8 0
3 years ago
Read 2 more answers
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