Answer: 5y = -11
Step-by-step explanation:
-2x + y = -5
(-2x - 4y = 6) -1
-2x + y = -5
2x + 4y = -6
System by elimination method
0 + 5y = -11
5y = -11
Answer:
Population of bacteria at time
is 
Step-by-step explanation:
The complete question is
If
represents the number of bacteria in a culture at time t, how many will there be at time 
Solution
Given
The population of bacteria after time t is equal to 
Population when at time 
We will substitute the value of time in above equation.

Answer:
slope1 : 7, slope 2 = 3 solution: (2,5)
Step-by-step explanation:
I simplify some steps
pair 1: x1 0 2
y1 -9 5 ........ -9, y1 intercept
pair 2: x2 0 2
y2 -1 5 ........ -1, y2 interept
2 pairs meet at (2,5)
y=7x-9 ......A
y=3x-1 ......B
A-B 0=4x-8
4x=8
x=2
y=5
slope 1=( y2-y1) / (x2-x1) = (5- -9)/(2-0) = 14/2 =7
slope 2 = (5 - -1) / (2 - 0) = 6/2 = 3
Answer:
Option d. is correct answer.
Step-by-step explanation:
<em>f(x) = [x]</em><em> </em>is the absolute value parent function.