Find the exact value of tan 270º in simplest form with a rational denominator.
1 answer:
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Answer: 1308
Step-by-step explanation:
Given : Level of confidence = 0.97
Significance level :
Critical value :
Margin of error :
If prior proportion of population is unknown , then the formula to find the population proportion is given by :-
Hence, the minimum sample size needed =1308
9514 1404 393
Answer:
C- (14, 4); The vertex represents the maximum profit.
Step-by-step explanation:
The leading coefficient of the quadratic function is negative, so the graph opens downward, and the vertex represents a maximum.
The maximum value is at ...
x = -b/(2a) = -28/(2(-1)) = 14
f(14) = -14^2 +28(14) -192 = 4
The vertex is (14, 4). It represents the maximum profit.
