A sector of a circle has perimeter 7 cm and area 3 cm^2. find all possible radii.

3, nah jk it's 2

step-by-step explanation:

it is 3 cause i'm sanic

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

probability for j is 1/4

while

a is 1/6