Answer:
no
Step-by-step explanation:
thanks for 5 points
To solve this we are going to use a conversion factor. We know that 1 BTU per hour is approximately 778 foot-pounds of energy per hour, so our conversion factor will be:

.
Now we just need to multiply <span>4000 BTU by our conversion factor:
</span>

<span>
We can conclude that the furnace released </span><span>
3,112,000 foot pounds of energy in one hour.</span>
Answer:

Step-by-step explanation:
triángulo 30°-60°-90°








Answer:


Step-by-step explanation:
Given

Required
Choose equivalent expressions
Choosing the first answer:

Split expressions

Apply laws of indices: 

Apply laws of indices: 



Hence:

Choosing the second:

Apply law of indices: 
So,



Apply law of indices: 
So:
