Louise wants to factorize completely the given polynomial 
Grouping first, second terms together and third, fourth terms together
= 
Taking
common from first and second terms of the given expression and taking 5 common from the third and fourth terms.
=
Taking (x+3) common from the given expression,
=
is the completely factored form.
A rational number can be made into a fraction
0.21 = 21/100....so it is rational
Answer:
x=2
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given that,
Mass of a sample, m = 12 g
Heat absobed by the sample, Q = 96 J
It was heated from 20°C to 40°C.
We need to find the specific heat of a material. The heat absorbed by a sample is given by :

So, the specific heat of the material is
.
Answer: the slope is 2
Step-by-step explanation:
It goes up 2 and over 1
y/x
rise over run= rise/run