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
frosja888 [35]
2 years ago
10

1) A covered hot cup of coffee will cool to the temperature of the room as governed by a physics principle known as Newton's Law

of Cooling. The data from an experiment is shown in the table. If the room temperature is 73 degrees Fahrenheit, which statement is correct?A) The relationship could be linear with c ≈ 83oF.B) The relationship could be linear with c ≈ 63oF.C) The relationship could be exponential with c ≈ 83oF.D) The relationship could be exponential with c ≈ 63oF.
Mathematics
1 answer:
dlinn [17]2 years ago
6 0

Answer:

f(t) = 80 + 120 e^(-0.08 t)

Step-by step explanation:

The exponent is negative, so this is an example of exponential decay.  As t increases, the exponent becomes more and more negative.  So e^(-0.08 t) gets closer and closer to 0.  Meaning f(t) gets closer and closer to 80.

You might be interested in
Need help with number 3 inequalities with variables on both sides
Volgvan

Answer:

x ≤ 2

Step-by-step explanation:

We are given the inequality:

\displaystyle{2x-3 \leq \dfrac{x}{2}}

First, get rid of the denominator by multiplying both sides by 2:

\displaystyle{2x\cdot 2-3\cdot 2 \leq \dfrac{x}{2}\cdot 2}\\\\\displaystyle{4x-6 \leq x}

Add both sides by 6 then subtract both sides by x:

\displaystyle{4x-6+6 \leq x+6}\\\\\displaystyle{4x \leq x+6}\\\\\displaystyle{4x-x \leq x+6-x}\\\\\displaystyle{4x-x \leq 6}\\\\\displaystyle{3x \leq 6}

Then divide both sides by 3:

\displaystyle{\dfrac{3x}{3} \leq \dfrac{6}{3}}\\\\\displaystyle{x \leq 2}

Therefore, the answer is x ≤ 2

5 0
2 years ago
Read 2 more answers
Which quantity is proportional to 20/5?
kirza4 [7]

Answer:

100/25, 60/15, and 4/1

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Select the correct answer.
aleksley [76]

Answer:

A. 247.03

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A compound event consists of a certain event, an event with probability 1/4, and then an impossible event. What is the probabili
Verdich [7]
Thank you for posting your question here at brainly. Feel free to ask more questions.   
<span>
The best and most correct answer among the choices provided by the question is 0 (zero)</span>.          <span>
<span>
Hope my answer would be a great help for you. </span> </span>
3 0
3 years ago
Read 2 more answers
The dimensions of a rectangular piece of paper are 8.5 inches and 11 inches. Veronica folded the piece of paper along its diagon
Mashutka [201]

Answer:

D) 13.9 in

Step-by-step explanation:

The diagonal of a rectangle is longer than the longest side. It will never be more than 42% of the shortest side longer than the longest side.

Here, the longest side is 11 inches. 42% of the shortest side is about 3.6 inches, so the diagonal length will be between 11 and 14.6 inches. Only one answer choice is in that range: 13.9 in.

Of course, the length of the diagonal can be figured to any desired accuracy using the Pythagorean theorem.

... √(8.5² +11²) = √193.25 ≈ 13.9014 . . . . inches

_____

<em>Comment on the solution</em>

For this multiple-choice problem, it is sufficient to estimate the length of the diagonal. The estimate we suggested was to add 0.42 times the short side to the long side.

An even closer estimate can be had by multiplying that value (.42×short side) by the ratio of the short to long sides prior to adding it to the long side. This will get you within 1.5% of the correct value without the need for a square root.

3 0
4 years ago
Other questions:
  • Suppose you invest $10,400 in equipment to manufacture a new board game. Each game costs $2.65 to manufacture and sells for $20.
    10·1 answer
  • During a field trip to a local soda
    15·1 answer
  • 7x - 3y = 31<br> 7x + y = -1<br><br><br> Please solve x and y
    5·1 answer
  • She bakes 4 batches of cookies in the morning and 4 batches of cookies in the evening. Each batch has 12 cookies. She fill the b
    9·2 answers
  • 1.) Multiply. (x – 7)(2x – 7)
    7·2 answers
  • Guys I need help I'm giving brainlist also show your work for me please this is my last math problem help​
    11·1 answer
  • 2+2 is 4, minus one is _
    7·2 answers
  • Write an equation in slope-intercept form that describes the line with a slope of 4 and y-intercept of 1
    5·1 answer
  • Suppose y varies directly with x, and y = 40 and x = 5. What is the value of y when x = 2?
    7·1 answer
  • Please help me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!