Answer:
Step-by-step explanation:
To evaluate f(4) substitute x = 4 into f(x)
f(4) = 5 × = 5 × =
Area of square = 5 x 5 = 25 cm^2
area of rectangle = 25 x 10 = 250 cm^2
area of figure = 25 + 250 = 275 cm^2
hope it helps
Because it does not specify that she has to choose one or two from each category all pieces of jewelry can be treated as choices in a combination set.
the formula for a combination is
where n is a total number of choices ( 11 )
and r is number chosen out of those choices (4)
so
C(11,4)= \frac{11!}{4!(11-4)!}
She has 330 possible choices to come home with 4 pieces of jewelry