So r+c=42
c=4+r
subsitute c=4+r for r in r+c=42
r+4+r=42
add like terms
2r+4=42
subtract 4 from both sides
2r=38
divide both sides by 2
r=19
rob=19
subsitute r=19 for r in c=4+r
c=19+4
carly=23
87.5 you see you need to multiply .25 by 35.If there are zeros at the end of a decimel
you can remove them good luck
Answer:
Step-by-step explanation:
The discriminant tells you where the graph of the parabola goes through the x-axis, if at all. If the discriminant is negative there are no real zeros and the parabola does not cross or touch the x-axis; if the discriminant is positive the parabola will go through the x axis in 2 places; if the discriminant is 0 the parabola will touch the x-axis in 1 place. Our discriminant is 0 since the parabola only touches the x-axis but does not go through.
Answer: 0.29166666666
Step-by-step explanation:
Answer:
3,818.2
Step-by-step explanation:
The 2 is in the tenths place. Since the digit to the right of the 2 is below 5, just drop it.
Answer: 3,818.2
