Answer:
-√64: rational
15 pi: irrational
46.86 repeated: rational
15/19: rational
-2√6: irrational
Step-by-step explanation:
From the picture that I used, I was able to find out which ones were rational and irrational.
-√64: rational because it equals to -8
15 pi: has "pi" in it
46.86 repeated: as long as it's repeated, it's rational
15/19: fractions are usually rational
-2√6: √6 is cannot be rationalized
If the shorter piece is x feet long, the longer piece is 3x+4 feet long, and the total length is
... x + (3x+4) = 36
... 4x = 32 . . . . . . . . simplify, subtract 4
... x = 8
The shorter piece is 8 feet long; the longer piece is 28 feet long.
_____
You can do the math for the longer piece in your head: 36 ft - 8 ft = 28 ft.
I think it’s either 13 or 4x
Step-by-step explanation:
f(x) = x² - 3x + 5
f(-2) = (-2)² - 3.(-2) + 5
f(-2) = 4 + 6 + 5
f(-2) = 15
Answer
77
Step-by-step explanation:
You add how much she earns a week with 32 because she earns $1 dollar per book.
