Answer:
Josh was driving faster
Step-by-step explanation:
Josh was going faster becuase 320 divided by 4 is 80
and 225 divided by 3 is 75.
In conclusion Josh was going faster by 5mph.
Answer:
y = 13x
Step-by-step explanation:
gradient = 13
x = 0
y = 0
so 
= 13
cross multiply and you get
y = 13x
You're assuming that this data set represents all of Mrs. Hassaan's pupils. Certain students could be missing from the histogram - for instance, there could be one or two students who missed the test, but for certain reasons will be taking a make-up exam. Their grade would not be recording in this data set, but they still contribute to the class size, and so would be unaccounted for here.
Answer:
66
Step-by-step explanation:
Expand (x+2)^2: x^2 + 4x + 4 : remember that (a+b)^2 = a^2 + 2ab + b^2
So: x^2 + 4x + 4 - x^2 = 60
