Answer:
Step-by-step explanation:
27+36
=9×3+9×4
=9(3+4)
=9×7
=63
27+36=63
so 27+36=9(3+4)
Answer:
I'm pretty sure she needs to have $18.45
Step-by-step explanation:
All you have to do is add the numbers together to get the minimum amount
Answer:
x is greater than 30
x is greater than or equal to 31
Step-by-step explanation:
any number above 30 works
This is an equation that calculates potential energy and converts the value into its commercial unit.
<u>Step-by-step explanation:</u>
Step 1:
Given equation is 2 kg × 9.81 m/s² × 40 m. From the units, find the corresponding measurements. kg is the unit of mass (m), 9.81 m/s² is the acceleration due to gravity (g) and m is the unit of length or height (h).
This shows that this equation is to find potential energy. It is then converted into the commercial unit of energy (Joules).
⇒ Potential Energy = mgh = 2 kg × 9.81 m/s² × 40 m
= 784.8 kg m²/s²
= 784.8 N-m (Since unit of force, 1 N=kg m/s²)
= 784.8 J (1 Newton-m = 1 Joule)
