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Answer: ⇒⇒⇒⇒⇒-105
Explanation
↓↓↓↓↓↓↓↓↓↓↓↓↓
First, remove parenthesis.

Then, multiply by the numbers.


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Answer:
n = 484
Step-by-step explanation:
If Confidence Interval CI = 95 % then α = 5% and α/2 = 2,5 %
α/2 = 0,0125
MOE for normal distribution is:
MOE = z * σ/√n
For α/2 = 0,0125 ⇒ z(score) = -2,2
MOE = |-2,2| * 4/√n
0,4*√n = 8,8
√n = 8,8 / 0,4
√n = 22
n = 484
Answer:
Additional information required is
<DBA = 90°
Step-by-step explanation:
<DBA + <DBC = 180° [Linear pair]
=> <DBA = 180° - <DBC
=> <DBA = 180 - 90
=> <DBA = 90
Hence, both the angles <DBA = <DBC = 90°
As we know that when a perpendicular bisector bisects a straight line both the angles should be,
180° ÷ 2 = 90°
And above conditions also prove that
<DBA = <DBC = 90°
<em><u>Hence, DE is a perpendicular bisector of AC </u></em>
72 inches.
<span>72/6=12inch sixths </span>
<span>each sixth is cut into a third </span>
<span>12/3=4 inches </span>
<span>each of these eighteenths (6*3=18) have a length of four inches. </span>
<span>Check. 18*4 should equal 72. You have 18 pieces, each four inches long.
Got it all?</span>
Choice A. 75%. 1\4 is equal to 25%. 2\4 is equal to 50%. 3\4 is equal to 75%. 4/4 is equal to 100%