The answer would 12. Think of ratios as fractions. 1/2 = 6/12 So, 6:12
Answer:
B. A random sample of 2,800 U.S. adults under 35.
Step-by-step explanation:
To have an unbiased and accurate sample, the sample should be representative of the population about which we are inferring.
Also, the bigger the sample size, the less margin of error we will have in the inference.
As the population in this survey is about the US adults under 35, the sample should be selected from this group.
From the options that select from this population, the largest sample is 2,800.
So the answer is Option B.
Yes, parentheses can change the order in which operations are performed in an expression.
Let us understand this with two examples.
First example.
Let us suppose we have to simplify the expression

In this expression we have evaluated subtraction first instead of multiply.
Second example.
Let us suppose we have to simplify the expression

In this expression we have evaluated multiplication first and then subtraction.
Therefore, from above two examples we can see that parentheses can change the order in which operations are performed in an expression.
Answer: In both the case amount of interest is paid are:
1) $9000
2) $10146.76
Explanation:
Since we have given that
Principle amount = $30000
Interest rate = 6%
Number of years = 5 years
we'll use " Simple interest " first,
As we know the formula for " Simple Interest ":

Now, we'll do it by "Compound Interest "

So,

Hence in both the case amount of interest is paid are:
1) $9000
2) $10146.76
No, your written example is in scientific notation