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mash [69]
3 years ago
6

For number 12, it says write an equation in slope-intercept for for the total cost of any number of tickets at 7 tickets for $5.

I’ve got the unit cost as $0.71/per ticket.
What do I do after that?
Mathematics
1 answer:
ra1l [238]3 years ago
4 0

Find the y-intercept then model it into y = .71x + b (b is the y-intercept).

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The diameter of holes for a cable harness is known to have a normal distribution with a standard deviation of 0. 01 inch. A rand
Sindrei [870]

For the given standard deviation and sample mean the two sided confidence interval on mean diameter foe 95% and 99% is given by        ( 1.4983 , 1.5107 ) and ( 1.49635 , 1.51265 ) respectively.

As given in the question,

Confidence interval for population mean is given by:

\bar{x} ± z × ( σ / √n)

Where,

σ = population standard deviation.

n= sample size

\bar{x} = Sample mean

Given values from the random sample size are :

σ = 0.01 inches

n= 10

\bar{x} = 1.5045

Critical value confidence interval (using x-value table)

z  for 99% = 2.576 and Significance level = 0.01

z for 95% = 1.960 and Significance level = 0.05

99% two-sided confidence interval on the mean hole diameter is equal to :

\bar{x} ± z × ( σ / √n)

= 1.5045 ± 2.576 × ( 0.01 / √10)

= 1.5045 ± 0.00815 (approximately)

= 1.5045 - 0.00815 , 1.5045 + 0.00815

= ( 1.49635 , 1.51265 )

95% two-sided confidence interval on the mean hole diameter is equal to :

\bar{x} ± z × ( σ / √n)

= 1.5045 ± 1.960 × ( 0.01 / √10)

= 1.5045 ± 0.00620 (approximately)

= 1.5045 - 0.00620 , 1.5045 + 0.00620

= ( 1.4983 , 1.5107 )

Therefore, for the given standard deviation and sample mean the two sided confidence interval on mean diameter foe 95% and 99% is given by ( 1.4983 , 1.5107 ) and  ( 1.49635 , 1.51265 ) respectively.

Learn more about standard deviation here

brainly.com/question/16555520

#SPJ4

4 0
1 year ago
What is a cubic polynomial function in standard form with zeros 1 -2 and 2?
Zolol [24]

Answer:

f(x) = x³ - x² - 4x + 4

Step-by-step explanation:

Given the zeros of a polynomial say x = a, x = b, x = c then

(x - a), (x - b), (x - c) are the factors of the polynomial and

f(x) is the product of the factors

here x = 1, x = - 2, x = 2, hence

(x - 1),(x + 2), (x - 2) are the factors and

f(x) = a(x - 1)(x + 2)(x - 2) ← a is a multiplier

let a = 1 and expand the factors

f(x) = (x - 1)(x² - 4)

     = x³ - 4x - x² + 4

     = x³ - x² - 4x + 4 ← in standard form

7 0
3 years ago
The Math Club is renting a banquet room for a party with door prizes. The banquet room costs
juin [17]

Answer:

14

Step-by-step explanation:

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Find the slope!!!!!!!! Help!!!!!!!
Georgia [21]

Answer:

the answer is  six

Step-by-step explanation:

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What is the missing step in this proof
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Ok the parralelogram is 25 units and I think the angle of BCD would be 53. I got this by subtracting 127 from 180 since that should give you the whole square. and I got teh units by adding the lines BC and AB... Hope this helped
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