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lys-0071 [83]
3 years ago
8

Which number is not equal to one of the following expressions? 2,500 × 10 250,000 ÷ 100 2,500 ÷ 10

Mathematics
1 answer:
ololo11 [35]3 years ago
4 0

Answer:

2,500 ÷ 10

Step-by-step explanation:

Let's evaluate each expression one after the other and find out what they both gives us, then we'd now pick or select the one that doesn't give the required answer.

For 2,500 × 10

2500*10 = 25000

For 250,000 ÷ 10

250000/100= 25000

For 2,500 ÷ 10

2500/10= 250

So from the look of the results,

The one that gave us the odd result is

2,500 ÷ 10, and that's our answer.

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Fill in the missing Statement and Reason blanks for the two-column proofs.
Lyrx [107]
The two column reason statement is 4 and 5
3 0
2 years ago
Calculate the mean deviation for the numbers: 75, 83, 96, 100, 121 and 125 A 14.33 B 15 C 15.33 D 16
sveta [45]

Answer:

c) 15.33

Step-by-step explanation:

lets find the mean first

mean = sum of the data values / number of data (n)

= 75 + 83 + 96 + 100 + 121 + 125 / 6

= 600/6

= 100

Next, let 'x' represent each data value and 'a' represent the the mean

now, calculate the deviation from each data point

75 - 100 = - 25

83 - 100 = -17

96 - 100 = - 4

100 - 100 = 0

121 - 100 = 21

125 - 100 = 25

Then, find the absolute value of each deviation and sum them up

that is | a - x |

| -25 | + | -17 | + | -4 | + | 0 | + | 21 | + | 25 |

= 25 + 17 + 4 + 0 + 21 + 25

= 92

now, calculate the mean of the absolute value

92/6 = 15.33

4 0
4 years ago
Which of the following is an extraneous solution of startroot 4 x 41 endroot = x 5? x = –8 x = –2 x = 2 x = 8
Gnom [1K]

The extraneous solution of startroot 4 x 41 endroot = x 5 will be A. -8.

<h3>What is an extraneous solution?</h3>

It should be noted that an extraneous solution simply means a root of a transformed equation which isn't part of the original equation.

✓4x + 41 = x + 5

Square both sides

4x + 41 = x² + 10x + 25

x² + 6x - 16

x(x + 8) - 2(x + 8) = 0

x + 8 = 0

x= 0 + 8 = 8

Learn more about extraneous solution on:

brainly.com/question/295656

#SPJ4

7 0
2 years ago
Read 2 more answers
While Leo was visiting his sister in Ashland, he bought a surfboard that was marked down 40% from an original price of $521.28.
katrin2010 [14]

Answer:

  $344.04

Step-by-step explanation:

The markdown multiplies the price by (1 -40%) = 0.60.

The tax multiplies the price by (1 +10%) = 1.10.

The two factors applied to the price make the final price be ...

  $521.28·0.60·1.10 = $344.04

The total cost of the surfboard was $344.04.

5 1
2 years ago
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