Answer:
see explanation
Step-by-step explanation:
Using the description for the piece wise function
|(a)
f(0) ← x = 0 and x < 5 thus f(x) = x + 4, then
f(0) = 0 + 4 = 4
(b)
f(6) ← x = 6 and 5 ≤ x < 7, thus f(x) = 8, that is
f(6) = 8
Answer:
A, 2/5
Step-by-step explanation:
8 + 10 + 9 + 6 + 7 = 40
9 + 7 = 16
16/40
divide both sides by 8 (common factor)
2/5
Answer:
D
Step-by-step explanation:
i think it's correct if not I'm sorry
Answer:
12 inches
Step-by-step explanation:
So you know that the perimeter of a picture frame (a rectangle) is 2 widths plus 2 lengths.
Let x= lengths and w= widths
From the question we already know that w=7, so we can set up an equation that says:
2x + 2w = 38
2x + 2(7) = 38
2x+14 = 38
2x +14 -14 = 38-14
2x = 24
2x/2 = 24/2
x= 12
Since x= lengths =12
the length of the frame is 12 inches.