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
jolli1 [7]
3 years ago
15

Help with this math question

Mathematics
1 answer:
Art [367]3 years ago
5 0
Answer: option J: 128 joules

Explanation:

1) From the table you try to find which relation best fits the data.

2) Your best first assumption is that the data may fit a proportional relation.

3) To prove that you find the ratio of Energy ouput to Amount of chemicals.

Doing that you find:
 20        32         48       60
----- =  ------- =  ------ = ------ =  4
  5          8           12      15


4) Then you have found a direct relation whose ratio is 4 joules / mol. So, you can apply that constant to the number of moles given:

Energy = 4  joules / mol × 32 mol = 128 joules
You might be interested in
A triangle has sides 12, 35, and 37. Identify whether the triangle is right, acute, or obtuse.
s2008m [1.1K]

Answer:

Right triangle

Step-by-step explanation:

Using pythagorean theorem,

c^2 = a^2 + b^2\\37^2 = 12^2 + 35^2 \\1369 = 144 + 1225\\1369 = 1369

Hence satisfied. So it is right triangle.

6 0
3 years ago
Do someone one want to help me with this ?
Annette [7]

Answer:

The equation is 4y+8=9

The expression is 3-2

The inequality is 7/y < 6

Step-by-step explanation:

7 0
3 years ago
Write an expression for the sequence of operations described below.
Anna [14]

Answer:

a - (6-9)

Hopefully this is correct

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find the missing coordinate to complete the​ ordered-pair solution to the given linear equation.
ad-work [718]
Y=7x+1

*note that the first number is always the x. 
so, 

a) (0,?)
    y=7(0)+1
    y=1
    (0,1)

b) (3,?)
    y=7(3)+1
    y=21+1
    y=22
    (3,22)
6 0
3 years ago
Read 2 more answers
Sixty-three people participated in a study to see if they were left-brain dominant or right-brain dominant. In the study, the pe
fgiga [73]
The two-way table is attached.

We know that 63 people took the survey, and 22 of them were left-handed.  This means that 63-22=41 of them are right handed.

Out of the 63 total, 37 are left brain dominant; this means that 63-37=26 are right brain dominant.

Of the 26 that are right brain dominant, 21 are right handed; this means 26-21=5 are left handed.

Of the 22 left-handed people, 5 are right brain dominant; this means 22-5 = 17 are left brain dominant.

Of the 37 left brain dominant people, 17 are left handed; this means 37-17=20 are right handed.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Question 17<br> Write 24 as a percentage<br>        ------        <br>        25
    7·2 answers
  • What Is the value of 8÷1/5
    6·1 answer
  • What is the equation in point slope form of the line passing through (4,0) and (2,6)
    13·1 answer
  • A prism is a three dimentional shape with the same ________ all the way through
    12·1 answer
  • Compute the square root of√144
    5·2 answers
  • The original price of a bottle
    5·2 answers
  • 9x⁴-3x²+1
    14·1 answer
  • Please help me find the value of x​
    11·1 answer
  • What is the probability of flipping a coin 50 times and getting tails 22 times or fewer
    5·2 answers
  • Eric bought a canoe for $400. The sales tax was 5.2%. What was his total cost?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!