Answer:
-4
Step-by-step explanation: it is intercepting the -4 so i think -4 is the right answer
Answer:
Marco- 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent.
Isabella- 1 is the starting population. 1+0.2=1.2 is the rate at which it grows each day.
Step-by-step explanation:
Marco's equation should be
since the bacteria double each day. 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent. This will double each day because:
Day 1 is ![2^{1}=2](https://tex.z-dn.net/?f=2%5E%7B1%7D%3D2)
Day 2 is ![2^{2}=4](https://tex.z-dn.net/?f=2%5E%7B2%7D%3D4)
Day 3 is ![2^{3}=8](https://tex.z-dn.net/?f=2%5E%7B3%7D%3D8)
Day 4 is ![2^{4}=16](https://tex.z-dn.net/?f=2%5E%7B4%7D%3D16)
You'll notice the value doubles each day.
Isabella has a different equation because her population increases by a percentage. We use the simple interest formula to calculate the bacteria's daily increase or interest.
1(1+0.2)d
1 is the starting population.
1+0.2=1.2 is the rate at which it grows each day.
Answer:
BBBBBBBBBBBBBBBBBBBB
Step-by-step explanation:
Answer:
s=10Ź+ź×ź
Step-by-step explanation:
S =ut + 1/2at×t
Answer:
( x+1)^2 + (y+2)^2 = 25
The center is (-1, -2) and the radius is 5
Step-by-step explanation:
x^2 + 2x + y^2 + 4y = 20
Complete the square
2/2 =1 1^2 =1 so add 1 for x 4/2 =2 2^2 = 4 so add 4 for y
x^2 +2x +1 +y^2 +4y+4 = 20 +1 +4
( x+1)^2 + (y+2)^2 = 25
(x+1) ^2 + (y+2)^2 = 5^2
(x - -1) ^2 + (y - -2)^2 = 5^2
This is in (x-h)^2 + (y-k)^2 = r^2 form where (h,k) is the center and r is the radius
The center is (-1, -2) and the radius is 5