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DanielleElmas [232]
3 years ago
8

Mind helping me out with these? Find the mean and range of the following data. 50, 60, 48, 72, 23, 98, 100 . The marks in a subj

ect for 12 students are as follows: 31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29. For the given data, find the (a) Mean (b) Mode (c) Median. If the mean of 26, 28, 25, x, 24 is 27, find the value of x.
Mathematics
2 answers:
77julia77 [94]3 years ago
5 0

Answer:

1. Mean- 64.43

  Range- 77

2. Mean- 30.42

   Mode- 35

   Median- 20

Step-by-step explanation:

1. Mean- 50+60+48+72+23+98+100= 451

              451 divide by 7= 64.43

   Range- biggest no. - smallest no.     100-23=77

2. Mean- 31+37+35+38+42+23+17+18+35+25+35+29= 365 -->

               365 divide by 12= 30.42

   Mode- most repeated no= 35

   Median- 2 middles-- 23+17=40 then divide by 2= 20.

postnew [5]3 years ago
5 0

Answer:

first:

mean=64.43

range=77

second:

mean =30.42

mode=35

median=33

x=-76

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Here are the steps Tyler took to solve the equation.
Finger [1]

<em>Algebraic expressions</em> include both <u>alphabet </u>and <u>number</u> so that the value of the <u>alphabet</u> is to be <em>determined</em>. Thus the steps taken by Tyler are correct if x = 22.

ii. Tyler made no mistake.

<em>Algebraic expressions</em> include both <u>alphabet</u> and <u>number</u> so that the <em>value</em> of the <u>alphabet</u> is to be determined. The <u>value</u> of the <u>alphabet</u> in the <em>expression</em> would be determined by applying <em>mathematical operations</em> appropriately.

To solve the <u>question</u> given to Tyler, we have:

\sqrt{x + 3} = -5

<u>square</u> both <em>sides</em> of the equation to have;

(x + 3) = (-5)^{2}

x + 3 = 25

collect <em>like terms</em> to get;

x = 25 - 3

  = 22

x = 22

1. Thus the equation is true if x = 22.

2. <u>Tyler</u> did not make any <u>mistake</u> in solving for x.

For more clarifications on algebraic expressions, visit: brainly.com/question/4344214

#SPJ 1

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2 years ago
One pound of feathers would be easier weighing than one pound of iron
Lina20 [59]
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4 years ago
Read 2 more answers
How to solve question 10
Over [174]

Answer:

Option E x=x^2-10x+21

Step-by-step explanation:

we have

x-5=\sqrt{x+4}

we know that

For x> 5 both sides of the equation will be positive

Squared both sides

(x-5)^2=(\sqrt{x+4})^2

(x-5)^2=(x+4)

x^2-10x+25=(x+4)

Subtract 4 both sides

x^2-10x+25-4=(x+4)-4

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Rewrite

x=x^2-10x+21

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4 years ago
Find the proceeds for the simple discount note.
Ronch [10]
Given:
<span>Face value $4,530,
discount rate 7.2%,
time 125 days

Discount on Simple Discount note:
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Discount = 4,530 * 0.072 * 125/360
Discount = 113.25

Proceeds for the simple discount note
Proceeds = Maturity Value - Discount
Proceeds = 4,530 - 113.25
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The proceeds for the simple discount note is $4,416.75</span>
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3 years ago
Which of these tables represents a linear function?
wlad13 [49]

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Table 1

Step-by-step explanation:

For a function to be linear, equal changes in x must correspond to equal changes in y.

In all tables, the x values increase by 1, so all changes in x in all 4 tables are 1.

If a function is linear, then all changes in y must be equal.

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3 - 4 = -1

All changes in y are equal, so the first table is linear.

Table 2:

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Table 3:

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Table 4:

4 - 2 = 2

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The only table that has equal differences in y corresponding to equal differences in x is Table 1, so only Table 1 shows a linear function.

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