Answer:
f(x)=10+0.25x
she can put maximum 20 words
Step-by-step explanation:
f(x)<=15
10+0.25x<=15
0.25x<=5
x<=20
Use the identity:-
a^2 + b^2 = (a + b)^2 - 2ab
Plugging in the given values;-
a^2 + b^2 = 6^2 - 2*7 = 36-14 = 22 Answer
Sure, you can either simplify it further: 1/2 and you could also multiply by 2: 4/8
N=-6
that the answer to the question