1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Contact [7]
3 years ago
15

Find the time required for an object to cool from 280°F to 220°F by evaluating the following where t is time in minutes. (Round

your answer to four decimal places.) *280 t= 10 In 2 1 dT T – 100 min​

Mathematics
1 answer:
blsea [12.9K]3 years ago
4 0

9514 1404 393

Answer:

  5.8496 min

Step-by-step explanation:

  \displaystyle t=\frac{10}{\ln{2}}\int_{220}^{280}{\frac{1}{T-100}}\,dT=\frac{10(\ln{(280-100)}-\ln{(220-100)})}{\ln{2}}=\frac{10\ln{(3/2)}}{\ln{2}}\\\\\boxed{t\approx5.8496\quad\text{min}}

__

Modern calculators can perform integration with high accuracy. This one gives the same result.

You might be interested in
Another 3rd grade question:
liraira [26]
To find the perimeter you would need to add 35+35+65+65=200. If the perimeter is 200, and he circles around it 4 times, 200*4=800, which is the answer. 
 Answer: The total amount of yards that Chris dribbles the ball is 800 yards.
7 0
2 years ago
Based on the cards shown, what is P(pink or even)? <br><br>1/5<br>7/10<br>9/10​
kvasek [131]
Four of them are pink so it’s 4/10 and 2/5
6 0
3 years ago
Read 2 more answers
1.) A six-sided number cube is rolled, and the spinner
sammy [17]

Answer:

Step-by-step explanation:

The question is not totally clear. I will assume that the spinner has 2 colors, red and blue.

Your chances of rolling a 3 are 1 in 6 = 1/6

Your chance of getting blue is 1/2

Your chances are 1/2 * 1/6 = 1/12

As a decimal that is 0.0833333

As a % it is 8.3333 %

8 0
2 years ago
What is the number of possible outcomes when tossing 6 coins at once
lys-0071 [83]

Your answer would be 64. There are two sides on a coin. 2^6 would be 64.

Hope this helps.

7 0
2 years ago
Read 2 more answers
What is the answer? Anyone help I’m asking very kindly
QveST [7]

Answer:

i think its 540

7 0
3 years ago
Read 2 more answers
Other questions:
  • A kinder garden class has 9 girls and 11 boys in class what percent of the class are girls
    10·2 answers
  • The scale of this map is 1 inch = 50 miles. How many miles is Mackinac Bridge from Milwaukee? The distance on the map between th
    13·1 answer
  • Out of the last 50 guests, only 1 of them brought a coupon for free admission to the carnival. if there are 1,500 guests expecte
    8·1 answer
  • How do I graph y=3/2x-2
    11·1 answer
  • Which of the equations or inequalities below are true -9 +6 = 3
    5·1 answer
  • Find the measure of each interior angle of the regular polygon.
    7·1 answer
  • A parallelogram which has a line of symmetry is a rectangle<br>true or false​
    10·1 answer
  • A tile pattern decreases by 3 tiles. Figure 2 of the pattern has 4 tiles. Use y=mx+b
    13·1 answer
  • Write an equivalent algebraic equation for the sentence below.
    5·1 answer
  • Four tickets to the baseball game and 4 meal tickets cost $144.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!