Answer:
0.98001931 is your answer : >
Answer:
$7.50 per hat
Step-by-step explanation:
have a good night :)
Answer:
The time it would take the element to decay to 28 grams is approximately 22.5 minutes
Step-by-step explanation:
The give half life of element X = 6 minutes
The given initial mass of the radioactive element X = 390 grams
The mass of the element X after decay = 28 grams
The function that represent the decay of element X is given as follows here;

Which is of the form;

Therefore;
h = 6 minutes = The time duration of the half life
a = N₀ = The initial mass = 390 g
N(t) = The final mass = 28 g
t = The time it takes the element to decay
Plugging in the values gives;


Therefore;

t/6 = ln(29/390)/ln(0.5)
t = 6 × ln(29/390)/ln(0.5) ≈ 22.496
Given the answer to the nearest tenth of a minute, the time it would take the element to decay to 28 grams, t ≈ 22.5 minutes.
Answer:
4x+3x=180 ==> x = 25.7142857
Step-by-step explanation:
Since angles 3 and 4 are supplementary, added together they'll = 180 degrees: 4x + 7x = 180.
Next, 7x = 180.
Dividing 180 by 7: x = 25.7142857
Let x-golf ball
x+9=22
X=22-9=13
She start with 13 golf balls