Answer:
<em>Initial population: 222 fish</em>
<em>After 7 years: 871 fish</em>
Step-by-step explanation:
Initial population size:
Let t=0
∴P(0)=
=
=
=222 fish
After 7 years:
Let t=7
∴P(7)=871 fish
Answer:
Pieces remaining = 1 - (1/4 + 1/4) - (1/2 x1/5) = 1/2 - (1/2 x1/5) = 1/2 - 1/10 = 4/10
Therefore, 4/10 x 20 = 8 pieces.
Step-by-step explanation:
Sophie ate 1/4 = 5 pieces
Glenn ate 1/4 = 5 pieces
Remaining pieces = 20 - 5 - 5 = 10 pieces
On Monday, Sophie ate = 1/5 x 10 = 2 pieces
Therefore, remaining pieces = 10 - 2 pieces = 8 pieces
Sophie and Glenn consumed half of the pie the first day. This is equal to 10 pieces. The remaining pieces will be 10. If, on Monday, Sophie ate 1/5 of 10 pieces, representing 2 pieces, the number left over is 10 Minus 2, which equals 8 pieces.
2+4+5+6+8+2+5+6= 38/8 = 4.75
2+4+5+6+8+2+5+6+7 = 45/9 = 5
5 - 4.75= 0.25
C. The mean increased by 0.25
Since the discriminant is positive, this means we have two distinct real solutions.
If a, b, and c are rational numbers, then a discriminant of D = 40 indicates the two solutions are not rational. We would need D to be a perfect square to get two rational solutions.
X = 14
Add them all together and set them equal to 180 then solve for x
