Answer:
Betty will get 85 grade.
Step-by-step explanation:
Betty scored 75,90,88,72, and 86 on her tests.
As given the teacher throws out the lowest grade, we will not consider 72.
Now the teacher averages the remaining grades, and round up to the nearest integer.
So, taking the average we get;
= 84.75
Rounding this to nearest integer, we get 85.
Hence, Betty will get 85 grade.
Answer:
It will take 58 seconds
Step-by-step explanation:
If you have 1 kg of water in the jar, half of it will be 0.5 kg.
To vaporize half of the water (0.500 kg) the energy supply needed is
If the stove is supplying 20 kJ/s, the time its needed is
It will last at least 58 seconds to vaporize half of the water.
Step-by-step explanation:
Quadrilateral ABCD is inscribed in a circle.
Opposite angles of a Quadrilateral are Supplementary.