Hi There!
Answer:
A.) variables that were manipulated during the experiment
Least important to most important steps to include in a summary:
- variables that were manipulated during the experiment.
- list of all materials and equipment used in the experiment.
- number of scientists involved in the experiment.
- laboratory room number in which the experiment took place.
Hope This Helps :)
Answer:
B
Step-by-step explanation:
evry step is in the picture
Answer:6y= -5x + 3
Step-by-step explanation:
Can you make the answer clearer. I would be glad to help you. I just don't understand where it says "the sum of three numbers is 16 the sum of twice the first number"
The sum of the interior angles of a triangle is always 180 degrees. Thus,
the sum of 31, x+4 and 3x+9 must be 180.
31 + x + 4 + 3x + 9 = 180, or 44 + 4x = 180
While it's not necessary, y ou could reduce this equation before solving for x:
11 + x = 45. Then x = 34 degrees.
The three angles are then:
31
34+4 = 38
3(34) + 9 = 111
Check: show that 31+38+111 = 180 (degrees)
