Divide mentally. 8.4 ÷ 4,000 = ? A. 0.021 B. 0.0021 C. 0.00021 D. 0.000021 please explaine fully cuz i dont know help hurry
2 answers:
Let's go over it shall we:
8.4 / 4,000
1. first you have to move the decimal point over so that it becomes a whole number. *Hint: however many times you move the decimal point on the outside you do the same on the inside. For example:
2. Once you do that it becomes extremely easy. Next, you just solve it like a regular division problem.
3. The answer is B. 0.0021
Hope I helped ;)
8.4 / 4,000
1. first you have to move the decimal point over so that it becomes a whole number. *Hint: however many times you move the decimal point on the outside you do the same on the inside. For example:
2. Once you do that it becomes extremely easy. Next, you just solve it like a regular division problem.
3. The answer is B. 0.0021
Hope I helped ;)
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Answer:
Step-by-step explanation:
step 1
Find the area of the circle with a diameter of 9 units
we know that
The area of a circle is equal to
we have
----> the radius is half the diameter
substitute
step 2
Find the area of a square with a side length of 8 units
we know that
The area of the square is
where
b is the length side of the square
we have
substitute
step 3
Equate the areas
solve for