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vagabundo [1.1K]
3 years ago
14

2) AT&T charges an initial fee of $5.80 plus $0.30 per text. If Izzy has her cell phone

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer: 50 texts

Step-by-step explanation: 20.8 - 5.80 = 15

15 ÷ .30 = 50

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Process control is nothing more or less than monitoring quality as the work is being performed. Perhaps the most widely adopted
ella [17]

Answer:

a. Grand Mean = 2.799

b. Standard Deviation = 0.01387

c. Standard Error = 0.0016

d. The range with a Z score of 3 = (2.75739, 2.84061)

Step-by-step explanation:

a. Grand mean :

Given that

Sum of 80 values = 223.91

Total observation = 80

Grand mean = 223.91/80 = 2.799

b. With the excel command "STDEV[range of cells]", we get the standard deviation as = 0.01387

c. Standard error =  Standard deviation / root of n

= 0.01387/\sqrt{80}\\ = 0.0016

d. The range with a Z score of 3 :

lower limit = mean - (3 * SD) = 2.799 - (0.04161) = 2.75739

upper limit = mean + (3 * SD) = 2.799 + (0.04161) = 2.84061

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3 years ago
Question 2<br> Which figures demonstrate a single rotation?<br> Select each correct answer.
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The first one u circled is a single rotation

8 0
3 years ago
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Ne4ueva [31]

9514 1404 393

Answer:

  • x = 6
  • y = 55

Step-by-step explanation:

Angles opposite congruent sides are congruent, so base angles D and F of this isosceles triangle have the same measure:

  y = 55

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The sum of angles in the triangle is 180°, so ...

  55° +(11x +4)° +55° = 180°

  11x = 66 . . . . . . . . divide by °, subtract 114

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The values of x and y are 6 and 55, respectively.

5 0
3 years ago
Free brainlest and 100 points <br> have a nice day ;)
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Omgggg thank youuuuu
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3 years ago
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