GUYSSSS PLEASEEEEEEEEEE HELP!!!!!! Your friend is using Descartes’ Rule of Signs to find the number of negative real roots of
1 answer:
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Answer:
Step-by-step explanation:
sin(
)
using the sides of the 30- 60- 90 triangle
with legs 1, and hypotenuse 2 , then
= 30° and
sin30° =
The margin of error given the proportion can be found using the formula
Where
is the z-score of the confidence level
is the sample proportion
is the sample size
We have
Plugging these values into the formula, we have:
The result 0.14 as percentage is 14%
Margin error is 38% ⁺/₋ 14%
Where
We have
Plugging these values into the formula, we have:
The result 0.14 as percentage is 14%
Margin error is 38% ⁺/₋ 14%