Which of these fractions is closest to 0? 2/15 or 4/9 or -4/9
2 answers:
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Answer:
B. 359
Step-by-step explanation:
Given that:
The margin of error (e) must be within 0.3 unit, The standard deviation (σ) = 2.9 and the the confidence level = 95% = 0.95
α = 1 =0.95 = 0.05
The z score of 0.025 corresponds to the z score of 0.0475 (0.5 - 0.025) which can be gotten from the normal probability table.
Therefore:
The formula for the margin of error is given by:
Therefore the smallest sample size (n) is 359
Answer:
Step-by-step explanation:
you can use hypotenuse formula
45-45-90 isosceles right triangle
so, 45= x
x² + x² = 24²
2x² = 24²
x²= 24.12
x=
or :
you can use this rule: if you see a 45 45 90 isosceles right triagngle (you can look picture) 45=a cm and 90 =
cm
so ;
a=
hope this helps ^-^
