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
goldenfox [79]
3 years ago
15

The table compares the final cost of

Chemistry
1 answer:
Snowcat [4.5K]3 years ago
3 0

Answer:

y = -2.5 + x

Explanation:

Given the data:

__X____Y

$20 __$17.50

$21 __ $18.50

$22__ $19.50

$23__ $20.50

Using a linear regression calculator :

The linear regression model obtained is :

y = -2.5 + x

Where ; - 2.5 = intercept ; gradient / slope = 1

You might be interested in
Dalton theorized that atoms are indivisible and that all atoms of an element are identical. Scientists now know that
malfutka [58]
This is easy the answer is c
8 0
4 years ago
Read 2 more answers
What is the freezing point of an aqueous glucose solution that has 25.0 g of glucose?
LiRa [457]

Answer:

T_f=-2.58\°C

Explanation:

Hello,

In this case, we can compute the the freezing point depression by using the following formula:

T_f-T_0=-i*m*Kf

Whereas the freezing point of pure water is 0 °C van't Hoff factor for glucose is 1, the molality is computed as shown below and the freezing point constant of water is 1.86 °C/m:

m=\frac{25.0g\ glucose*\frac{1mol\ glucose}{180g\ glucose} }{100g*\frac{1kg}{1000g} }\\ \\m=1.39m

Thus, the freezing point of the solution is:

T_f=T_0-i*m*Kf\\\\T_f=0\°C-1*1.39m*1.86\frac{\°C}{m}\\ \\T_f=-2.58\°C

Regards.

4 0
4 years ago
For the following measurements , 27.5 x 0.125 x 13= 44.6875 , choose the answer that is rounded to the correct number of signifi
sergejj [24]
The Answer is C-44.7
4 0
3 years ago
What are the coefficients that would balance this equation? ___ HCL+___ NaOH-___ NaCl+____ H20
nexus9112 [7]

Answer:

It's already balanced as the equation has the same number of atoms on both left and right side

8 0
2 years ago
How many grams are in 9.8 moles of calcium
FrozenT [24]

Answer:

0.24 Moles i believe

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • When and where are your chances of being struck by lightning
    7·2 answers
  • If the reactants of a reaction have one s and four o atoms, what will the products have?
    15·2 answers
  • Which of these is a chemical property of a substance
    14·1 answer
  • A chemist is working on a reaction represented by this chemical equation:
    12·2 answers
  • Please someone should explain gas laws to me
    11·1 answer
  • The Big Bang reasoning
    9·1 answer
  • If the atom has a MASS of 127 and 45 NEUTRONS, then it contains how many <br> PROTONS<br> 
    14·1 answer
  • What is the metric equivalent to 1 tsp
    8·1 answer
  • Which will diffuse the most? The particles with the
    5·1 answer
  • Define state of matter
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!