Answer:
x + 6
Step-by-step explanation:
(f ÷ g)(x)
=
factorise the numerator
=
← cancel the factor (x + 3) on numerator/ denominator
= x + 6
The answer is 1,200 but all you have to do is figure out what 4% of 5000 is and then multiply that by 6
Answer:
39 or 1/39
Step-by-step explanation:
You need to divide these but it depends on how you divide them
The size of the sample they should take to estimate p with a 2% margin of error and 90% confidence is n = 1691.
In statistics, the margin of error is just the degree of a significant error in the outcomes of random sample surveys.
The formula of margin error is, E = z√((p-vector)(1 - (p-vector)) ÷ n)
E = 2% = 0.02
Confidence level = 90%
Now, the proportion is not given so adopt nominal (p-vector) = 0.05
The critical value at CL of 90% is 1.645.
Thus, making n the subject,
n = z²(((p-vector) × (1 - (p-vector))) ÷ E²)
n = 1.645²((0.5 × 0.5) ÷ 0.02²)
n = 1691.266
n ≈ 1691
Read more about the margin of error at
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