FACTORED POLYNOMIAL ONLY
1 answer:
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Answer:
80 m²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = h (a + b)
where h is the perpendicular height between bases and a, b are the bases
Here h = 8, a = 14 and b = 6, thus
A = × 8 × (14 + 6) = 4 × 20 = 80 m²
Answer:
The minimum score needed to be in the top 2% of the scores on the test
is n = 10,00,000
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
Mean of the Population = 110
Standard deviation of the Population = 20
The estimated error = 2% = 0.02
<u><em>Step(ii)</em></u>:-
The estimated error is determined by
⇒
Squaring on both sides, we get
n = 10,00,000
The minimum score needed to be in the top 2% of the scores on the test
is n = 10,00,000