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marissa [1.9K]
2 years ago
11

Solve 2y - 18 = -26 for y

Mathematics
2 answers:
Musya8 [376]2 years ago
8 0

Answer:

y=-4

Step-by-step explanation:

2y-18=-26

    2y=-26+18

        =-8

      y=-8÷2

        =-4

lana [24]2 years ago
8 0

1.2y=−26+18

2.2y=−8

3.y=− 8/2

4.y=−4

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Halloween Candy Halloween is Kelly's favorite holiday of the year! Based on experience, Kelly knows that on average, each house
LuckyWell [14K]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is an approximately 0% probability that the total number of candies Kelly will receive this year is smaller than last year.

Normal Probability Distribution

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, for n instances of a normal variable, the mean is n\mu while the standard deviation is s = \sigma\sqrt{n}.

In this problem:

  • Mean of 4 candies, hence \mu = 4.
  • Standard deviation of 1.5 candies, hence \sigma = 1.5.
  • She visited 35 houses, hence n = 35, \mu = 35(4) = 140, s = 1.5\sqrt{4} = 3

The probability is the <u>p-value of Z when X = 122</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{122 - 140}{3}

Z = -6

Z = -6 has a p-value of 0.

Approximately 0% probability that the total number of candies Kelly will receive this year is smaller than last year.

A similar problem is given at brainly.com/question/24663213

6 0
3 years ago
Select all situations that can be modeled with a linear function. A taxi charges an initial fee of $2.00 and $1.50 for each addi
stiks02 [169]
The taxi, the airplane, and the pizza can be shown as linear functions
3 0
3 years ago
Yes im dumb but i pretty much missed my education of 7th and now im 8th personal reasons and i need to at least get my grades up
Diano4ka-milaya [45]

Answer:

1. A    

2. B      

3.  (-3.5 , -6) --- III

    (-4 , 0)------- x-axis

    (9 , -2)------- II

    (8 , 3)-------- I

7 0
3 years ago
What is the value of x in the equation 3/4(14x+8)-(1/2x+2)=3/8(4-x)-1/4
Sedaia [141]

Answer:

-37/68

Step-by-step explanation:

3/4(14x+8)-(1/2x+2)=3/8(4-x)-1/4

(21/2x+6)-(1/2+2)=(3/2x-3/8)-1/4

(21/2x-1/2x)+(6-2)=3/2x-3/8-1/4

10x+4=3/2x-5/8

37/8=-17/2x

37/8 (2)=-17/2x(2)

37/4=-17x

37/68=-x

-37/68=x

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3 years ago
Helpppppppppp with this question???
irakobra [83]
Pretty sure it’s the second one
3 0
3 years ago
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