Answer:
A
Step-by-step explanation:
because she said half of X so 1/2x and then +3 to that half
The coefficient 6.3 rounds to 6
The coefficient 9.9 rounds to 10
So we go from this
(6.3 x 10^(-2))(9.9 x 10^(-3))
To this
(6 x 10^(-2))(10 x 10^(-3))
Multiply out the coefficients to get 6*10 = 60
Add the exponents to get -2 plus -3 = -5
So we end up with 60 x 10^(-5)
Be careful. This is NOT the final answer. We need to convert this to scientific notation
60 = 6*10 = 6 x 10^1
60 x 10^(-5) = ( 6 ) x 10^(-5)
60 x 10^(-5) = ( 6 x 10^1 ) x 10^(-5)
60 x 10^(-5) = 6 x (10^1 * 10^(-5)
60 x 10^(-5) = 6 x 10^(1+(-5))
60 x 10^(-5) = 6 x 10^(-4)
The final answer is choice A
3 x 4 = 12
618 divided by 12 = 51.5
However, you left a space between the 6 and the 8, so just in case that was meant to be 6.18, here
6.18 divided by 12 = 0.515
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Answer:
The answer is 4/3
Step-by-step explanation:
TO divide two fractions, you can flip the second one and then multiply.
2/3 ÷ 1/2
2/3 * 2/1 = 4/3