Answer:
I think the answer is A
Step-by-step explanation:
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
Answer:
please take a closer picture. :)
Step-by-step explanation:
20m/s
Speed=distance/time
Speed = 100/5 = 20
Answer = 20m/s
Answer:
Step-by-step explanation:
<u>Area of the top section:</u>
- A₁ = x*(x - x + 3) = x*3 = 3x in²
<u>Area of the bottom section:</u>
- A₂ = (x + 4)(x - 3) = x² + x - 12 in²
<u>Total area:</u>
- A = A₁ + A₂ =
- (3x) + (x² + x - 12) in²
Correct choices are C and D
