Now the population of bacteria is two to the fourth power times two to the sixth power. Expressed as a power, how many bacteria is on the petri dish after 150 minutes?

2¹⁰ bacteria

Step-by-step explanation:

There were originally 2⁴ bacteria in the dish.

After 150 minutes this number doubled 6 times which means it increased by 2⁶.

The number of bacteria will become:

= 2⁴ * 2⁶

= 2⁴⁺⁶

= 2¹⁰ bacteria

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18