Answer: U=-14
Explanation:
The half-life of the radioactive substance is 67.95 hours.
Answer:
x ≈ 38.7°
Step-by-step explanation:
Using the sine ratio in the right triangle
sinx = = , then
x = ( ) ≈ 38.7° ( to 1 dec. place )
Answer:
The number is 12
Step-by-step explanation:
Let x be the number
160/100 = 1.6
1.6 x = 19.2
x = 19.2 / 1.6
x = 12