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Airida [17]
3 years ago
7

I need to figure out what is X

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0

Answer:

I solved it and my answer is 20

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[Find all the missing side and angles of this triangle]
nydimaria [60]

Step-by-step explanation:

We have AB = 7, Angle ABC = 70°

and Angle ACB = 90°.

Angle BAC = 180° - 70° - 90° = 20°

(Sum of angles in a triangle = 180°)

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4 0
3 years ago
How do I solve this equation: -13+4(-5)?
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Suppose the average commute time of your employees is unknown. The standard deviation of their commute time is estimated as 22.8
nexus9112 [7]

Answer:

96 employees

Step-by-step explanation:

Given that the standard deviation = 22.8

The width in the question = 12

We solve for the margin of error E.

E = width / 2

= 12/2 = 6

At 99%

Alpha = 1-0.99

= 0.01

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Z0.005 = 2.576

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= ((2.576x22.8)/2)²

= 95.8

= 96

The number of employees is 96

Thank you!

6 0
3 years ago
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