The probability expression is
<h3>How to determine the probability expression?</h3>
The given parameters are
- Sophomore = 6
- Freshmen = 14
The total number of people is
n = 20
2 of the 20 people are to be selected.
So, the number of selection is
This gives
The expression that represents both students being sophomore is
--- i.e. 2 students selected from 6
The probability is then represented as:
Hence, the probability expression is
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Area of a circle= 2 times pi times radius squared
A= 2 <span>π r^2
A=2(3.14)(97mm)^2= 609.16 mm^2</span>
Answer:
The answers should be A, E, and F.
Step-by-step explanation:
The rule for multiplying the same bases, but with different exponents, goes like this. Lets say you have four to the 5th power, and four to the 7th power. When you multiply them, the base will stay as four, but you will ADD the exponents! So, the answer to this would be four to the 12th power. This rule can even be applied when one, or even <em>both</em> of the exponents are negative! However, keep in mind that this can only be done when the base integers are the SAME.
Answer:
As
parts per million can be calculated by applying formula Ppm=(mass of solute/mass of solution)×1,000,000
In given condition
Mass of solute which is NaCl is 284g
Mass of solution which is watervis 100g
Ppm=284/100×1,000,000
=284000ppm
I hope it's helpful!
Honestly I think that it’s c but check that and get back to me