Answer:
5
Step-by-step explanation:
h(x) = x² + 1
k(x) = x - 2
(h - k)(3)
Plug x as 3.
h(3) - k(3)
3² + 1 - 3 - 2
Evaluate.
9 - 4
= 5
Answer:

Step-by-step explanation:
In order to solve this you just have to remember the formula for the sides and hypotenuse of the triangle rectangle:

Since A and B are equal we will use X to represent them both:

ANd by solving the equation we get that the length of the legs of the triangle rectangle with a hypotenuse of 4cm is 
Answer:
Step-by-step explanation:
12 years, 10 months
Step-by-step explanation:
REO=RBO=67
BOR=ERO=91
REB=REO-BE0=67-32=35
RYE=180-ERO-REB=180-91-35=54