Answer:
To solve the equation: First, subtract 9 from both sides of the equation. Second, divide both sides of the equation by -10
Step-by-step explanation:
We are subtracting from both sides because we need to do the inverse, and the inverse of adding 9 is subtracting it.
Same with the -10. We need to do the inverse, and the inverse of multiplying by -10 is dividing by it.
Answer:
Option B, Americium-241, is the right answer.
Step-by-step explanation:
-
A device which senses smoke usually as an indicator of fire is known as a smoke detector.
- The two most common types of smoke detectors are the Ionization chamber and photoelectric smoke indicators.
- Many of these smoke detectors comprise some amount of americium-241, which is a radioactive substance.
- These smoke detectors respond immediately to fires that give off some smoke.
Answer: Our required probability is 0.11.
Step-by-step explanation:
Since we have given that
Number of workers in first shift = 21
Number of workers in second shift = 15
Number of workers in third shift = 13
We need to find the probability of choosing exactly two second shift workers and two third shift workers.
So, it becomes,
Hence, our required probability is 0.11.
Answer:
20cm
Step-by-step explanation:
Frame L&W: 25×20
PictureL&W:20×16
25-20=5
Length of Picture frame=5
Length of Picture frame=4
5×4=20cm²
To find area you multiply length by width
