distance (d) = rate (r) x time (t)
Nell: d = 12(2.5) = 30 miles
Kristen: d = 14(2.5) = 35 miles
Kristen - Nell = distance apart
35 - 30
5
Answer: 5 miles apart
Answer:
Four
Step-by-step explanation:
Let's expand and see how many nonzero terms:
⇒ (x+4)(2x²+3x+9)-3(x³-2x²+7x)=
⇒ 2x³ + 3x² + 9x + 8x² + 12 + 36 - 3x³ + 6 x² - 21 x=
⇒ - x³ + 17x² - 12x + 12
As we see the expression has four nonzero terms
