Answer:
- FIRSTLY GET THE AREA OF THE WHOLE CIRCLE BY USING FORMULA
- THEN AFTER THAT DIVIDE THE AREA BY 2
- AFTER THAT UR ANSWER WILL COME
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A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the prob
1 answer:
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Answer: A. 7x + 3
Concept:
Here, we need to know how to find the perimeter of a triangle
Perimeter (triangle) = s₁ + s₂ + s₃
s₁ = side one
s₂ = side two
s₃ = side three
Solve:
<u>Given information</u>
s₁ = 3x
s₂ = 3x + 3
s₃ = x
<u>Given expression</u>
P = s₁ + s₂ + s₃
<u>Substitute values into the expression</u>
P = (3x) + (3x + 3) + (x)
<u>Combine like terms</u>
P = (3x + 3x + x) + (3)
P = (6x + x) + 3
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Answer:
I) There are hours in 1 year.
II) The exact number of hours in one year is hours.
Step-by-step explanation:
Given : 1 hour=3600 seconds
1 year = 31556952 seconds.
To find :
I) Use scientific notation to estimate the number of hours in one year.
1 day = 24 hours
1 year = 365 days
So, number of hours in one year is given by,
In scientific notation,
So, there are hours in 1 year.
II) 1 year = 31556952 seconds.
1 hour = 3600 seconds
In one year the number of hour is given by,
In scientific notation,
So, the exact number of hours in one year is hours.
III) In two or more complete sentences, compare your answers to parts I and II. In your comparison, discuss similarities and differences.
- The exact numbers of hours using 365 days is 8760 which is written as
in scientific notation but using the given data we get
hours.
- Comparing these answers the first one has only 3 significant figures and the second answer has six significant figures.
- If we round these we get
hours which has two significant numbers.