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
velikii [3]
2 years ago
10

A scientist measure change in the temperature of chemical solution at the start of the experiment , the solutions is at temperat

ure of -14.96C. The temperature decreases 2.9C each hour
Mathematics
1 answer:
zhannawk [14.2K]2 years ago
4 0

Answer:

The temperature of the chemical solution after t hours is -14.96-2.9t\;^{\circ}C

Step-by-step explanation:

Given that the initial temperature of the chemical solution, T_0= -14.96^{\circ}C.

The rate of decreasing temperature, R = 2.9^{\circ}C/ hour

So, after t hours, the temperature of the chemical solution will decrease by Rt=2.9t^{\circ}C.

So, the temperature of the chemical solution after t hours,

T=T_0-Rt \\\\\Rightarrow T = -14.96-2.9t\;^{\circ}C

Hence, the temperature of the chemical solution after t hours is -14.96-2.9t^{\circ}C.

You might be interested in
Factor the mn+5m-3n-15
neonofarm [45]
The factor of mn+5m-3n-15 is 6m-4n-15.
3 0
3 years ago
Find the square root of 312.5​
jeka94

Answer:

17.67766953

=17.7 (to 3 s.f.)

5 0
2 years ago
Find the arc length of the remaining portion if the bolded section was cut out of the circle. Round to the nearest tenth.
jeka94

Answer:

  69.6 ft

Step-by-step explanation:

The arc length can be found as a fraction of the circumference. That fraction is the ratio of the central angle measure to the measure for the whole circle.

__

Central angle of remaining arc:

  360° -150° = 210°

Fraction of full circumference:

  210°/360° = 7/12

The circumference of the circle is ...

  C = 2πr = 2π(19 ft) = 38π ft.

Then the length of the remaining arc is ...

  (7/12)(38π) ft ≈ 69.6 ft

5 0
2 years ago
Devon draws one marble from a bag containing 5 red, 3 green, and 4 yellow marbles. What is the probability that Devon draws a gr
goblinko [34]

Answer:

3/12 or 1/4 after simplifying

Step-by-step explanation:

3 chances of getting green because there are 3 green and there is a total of 12 marbles so 3 out of 12, which is equal to one fourth.

5 0
2 years ago
3. Noah plays video games 7/8 of an hour each day. How many
7nadin3 [17]
1 hour = 60 mins
7/8(60) = 52.5 minutes per day
In a week: 52.5(7) = 367.5 mins
367.5/60 = 6 1/8
Therefore, he watches tv for 6 1/8 hours
3 0
3 years ago
Read 2 more answers
Other questions:
  • NASA is building a satellite that is roughly the shape of a sphere. If the satellite weighs 14.25 pounds per cubic foot before l
    9·1 answer
  • Three less than two times a number is 55. What is the number ?
    7·2 answers
  • Find the length of the missing side. The triangle is not drawn to scale.
    11·2 answers
  • Use the graph to find the factorization of x^2 - 7x + 12.​
    6·2 answers
  • Danielle went ice skating. It cost $3 an hour and $5 for skate rental. If Danielle spent $11, how many hours did she ice-skate?
    11·1 answer
  • Simply 3x+8/5+4x+10/5 completely
    7·1 answer
  • Which geographic feature was common to the development of civilizations in ancient Egypt, China, India, and Mesopotamia?
    15·1 answer
  • A farmer wants to sell enough grain to get at least $2,400. if the selling price is $3 per bushel, how many bushels must he sell
    5·1 answer
  • DESCRIBE A RULE YOU COULD USE TO FIND
    8·2 answers
  • What is the difference between 0.05 and 0.5
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!