Cobalt-60 is used in the treament of cancer. A sample contains 8 grams of Co-
60 where k - 0.1308.
N = Noe
-kt
No - initial mass (at time t = 0)
N = mass at time t
k - a positive constant that depends on
the substance itself and on the units
used to measure time
t-time, in days
Find the half life, in days of co 60. Round you answer to the nearest tenth

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

m∠a is 90°

m∠b is 40°

the radius is 2 times the diameter.

step-by-step explanation:

b

step-by-step explanation: