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Olenka [21]
3 years ago
9

Solve for x in the equation x² + 2x +1 = 17

Mathematics
1 answer:
SashulF [63]3 years ago
7 0

x=3.18,x=-5.18
It have two answers

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Suppose a call center receives 4000 calls on average during their Friday evening shift. Next Friday several people have put in f
luda_lava [24]

Answer:

The probability that the center will have enough employees to handle this call volume is 0.2764

Step-by-step explanation:

Probability is defined as the ratio of favorable outcomes to the total number of outcomes.

Here the total mean expected number of outcomes=u = 4000

The favorable  expected outcomes are = x= 22* 178= 3916

The  standard deviation= σ= 5

The random variable X =178 has normal distribution with mean 4000/22 and standard deviation 5

So z= x-u/σ

Z= (3916-4000)/22/5

z= -0.764

From the table of areas under normal curve

P (  x= 3916)=  P( -0.764 ≤ Z≤ 0)

P (  x= 3916)=  0.2764

The probability that the center will have enough employees to handle this call volume is 0.2764

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3 years ago
Please solve this ASAP
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Angle four is 22 degrees because dune side interior angles are supplementary
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Which of the following best describes a regular tessellation?A. A tessellation that uses only one type of regular polygonB. A te
Naya [18.7K]

Answer: A. A tessellation that uses only one type of regular polygon

Step-by-step explanation:

When we cover a surface with a pattern of a flat geometric shapes such that there should have no overlaps or gaps, then the surface is called a tessellation.

A regular tessellation is tessellation made up by using nly one type of regular polygon. These are made up of entirely congruent regular polygons all that joining vertex to vertex

Hence, A is the correct option.

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The following table shows the time it takes to ride the elevator to 3 three different floors of a skyscraper
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The table shows the time it was taken
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The answer is C, 135. To find the solution, first find the area of the closet by multiplying 3 by 5, which is 15. Then, find the area of the entire room by multiplying 15 by 10 to get 150. Finally, subtract 15 from 150 to find the solution of 135 square feet.

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