Answer:
100 miles
Step-by-step explanation:
Relative Speed: 60+40=100 mph
you can think that one train is stationary,another one is 100 mph
so one hour before the train pass each other,the distance is 100 miles
The decimal is irrational because it is not repeating.
Answer:A. 3x^2-2x-1+9x+2x^2-3=5x^2+7x-4
B. 5x^3+4x^2-x-3-5x^2-7x+4=5x^3-x^2-8x+1
C. Polynomials are closed under addition and subtraction...
Step-by-step explanation:
Answer:
I dont know
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Subtracting v - q, will be subtracting the atmosphere to the sun - surface to the sun.
The answer will be negative distance of the atmosphere.
However, we cant really have a 'negative' atmosphere, this is where the |absolute value| signs make this problem correct.