A = 1/2h(b1 + b2)
2A = h(b1 + b2)
2A/h = b1 + b2
b1 = 2A/h - b2
Answer:
3) 30
Step-by-step explanation:
Range = highest distribution - lowest distribution
So
Range = 60-30
Range =30
Answer:
y=z-2
Step-by-step explanation:
For this case we have the following expressions:
and 
Let:
(Integer m)
(Integer n)
By definition, an integer m is divisible by an integer n if the remainder of the division is 0. That is, there is an integer p such that: 
Rewriting the expression we have:

So:

We cancel similar terms:

We check:

Answer:
If they are divisible
If she got a 100 on her last test the highest her average would be is an 87%