Answer:

Step-by-step explanation:
Remember that:

Answer:
You have to put energy into a molecule to break its chemical bonds. The amount needed is called the bond energy. After all, molecules don't spontaneously break
Step-by-step explanation:
Answer:
The initial Carla's balance was $96
The equation is x-7=89
Step-by-step explanation:
Let
x ----> initial Carla's balance
we know that
The linear equation that represent this problem is equal to
x-7=89
solve for x
Adds 7 both sides
x=89+7
x=$96
Answer:
Step-by-step explanation: How do you find the 3rd angle of a triangle?
Image result for im not sure on how to do this If one angle of a triangle is 30° more than twice another angle, and the third angle is equal to the sum of the first two angles, find the measure of each angle.
The three angles of any triangle add up to 180 degrees. Since you know two angles (35 and 40), add them together, then subtract the total from 180 to determine the degree of the third angle.
Answer:
c is correct , half of 63 is 31.5 and since the formulae for circumference is 2pir
then : 2×3.142 × 3.14 =197.82cm