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
Y_Kistochka [10]
3 years ago
6

A bar of metal is cooling from 1000°C to room temperature, 22°C. The temperature, H, of the bar t minutes after it starts coolin

g is given, in °C, by H = 22 + 978e−0.1t.
Mathematics
1 answer:
NemiM [27]3 years ago
8 0
<span>Answer:
       I assume you're looking for a time-weighed average rather than just the [H(0) + H(60)]/2 average.
       Havg = (1/60)â«[20+980e^(-0.1t)]dt (evaluated from 0 to 60)
       Havg = (1/60)[20t - 98e^(-0.1t)] evaluated from 0 to 60
       Havg = (1/60)[20(60) - 98e^(-6) - 20(0) + 98e^(0)] = 1297.76/60 = 21.629 °C</span>
You might be interested in
Last week Jordan had 12 marbles . This week he has 21 marbles what is the percentage of increase in the number of marbles Jordan
Elodia [21]

Answer:

75%

Step-by-step explanation:

The <em>number </em>increase is 9. 9 is what percent of 12? 9 is 75% of 12

8 0
2 years ago
The answer and the step by step explanation pleasee
alexira [117]

Answer:

C

Step-by-step explanation:

Given

V = lwh ( isolate w by dividing both sides by lh )

\frac{V}{lh} = w → C

6 0
3 years ago
Which of the following equations is equivalent to x - y = 6?
Agata [3.3K]
I believe the answer would be A. 2x-y=6 :)
8 0
3 years ago
Read 2 more answers
3(q−7)=27 need help plzz 1st peep gets brainlest
ANTONII [103]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>q = 16</em>

▹ Step-by-Step Explanation

3(q - 7) = 27

3q - 21 = 27

Add 21 to both sides:

21 + 21 = na

27 + 21 = 48

3q = 48

Divide both sides by 3:

3/3 = q

48/3 = 16

q = 16

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

8 0
3 years ago
Read 2 more answers
A coach of a baseball team orders hats for the players on his team. Each hat costs $9.95. The shipping charge for the entire ord
maria [59]

Answer:

just do 125.00 -9.95+5.00 and then youll have your answer

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • X = -12 is a vertical line.
    15·1 answer
  • What is $0.1369 rounded to the nearest cent
    11·1 answer
  • In the triangle below, b = ____. If necessary, round your answer to two decimal places
    5·2 answers
  • Benjamin has purchased a $105,000 home with a 30-year mortgage at 4.75%.
    9·1 answer
  • Write the equations after translating the graph of y = |x|:<br> one unit up,
    7·1 answer
  • Evaluate the following function is f(x)=3x-2 and g(x)=5x+1 what is -2•f(4)+3•g(1)
    13·1 answer
  • HELPPP!!!!!!!!!!!!!!!!! What’s the slope of line. (-6,19) (8,19)
    15·2 answers
  • 4&lt;-2x+3&lt;9<br> Graph the inequality
    13·1 answer
  • Can someone help me understand this
    14·2 answers
  • I need help with this question. Question is in image below. ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!