Answer:
0.7266667
Step-by-step explanation:
We are given the following data
n = 35
x = 50
s = 2
CI = 95% (z = 1.96)
The formula for the margin of error is
E = z s / √n
Substituting the given values
E = 1.96 (2) / √35)
E = 0.66 or 66%
Answer:
B
Step-by-step explanation:
B is the correct answer. Since Mrs. Hooper and Mr. Anderson had to call a total of 8 parents, you know the first equation must be either A or B (H + A = 8).
Since you know that Mrs. Hooper had to call 2 more parents than Mr. Anderson, the equation will have to have H + 2 on one side; that's how you know the correct answer is B.
<h3><u>Answer</u><u>:</u></h3>
<h3><u>S</u><u>olution</u><u>:</u></h3>
In the given right angled triangle, we have :
- Base ( BC ) = 5
- Hypotenuse ( AB ) = 6
- Perpendicular ( AC ) = ?
<u>Using </u><u>Pythagoras </u><u>theorem</u><u>:</u>
➙ H ² = B² + P ²
➙ AB² = BC² + AC²
➙ 6² = 5² + AC²
➙ AC² = 6² - 5²
➙ AC² = 36 - 25
➙ AC² = 11
➙ AC = √ 11
<u>➙ AC = 3.32</u>
<u>➲</u><u> </u><u>M</u><u>o</u><u>r</u><u>e</u><u> </u><u>information</u><u>:</u>
- According to Pythagoras theorem,In a right angled triangle, the square of the Hypotenuse is equal to the sum of square of base and Perpendicular.
Not enoggh deatil but
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