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3 years ago

Which place value do you use to compare the numbers 145525 and 145552?

Mathematics

2 answers:

miv72 [106K]3 years ago

8 0

Answer:

Given numbers,

145525 and 145552,

Since, first four digits in the numbers are same, except tens and ones place numbers.

Thus, the numbers with larger face value at the tens place will be larger ( because place value of tens = 10, place value of ones = 1 )

Tens place digit in 145525 = 2

Tens place digit in 145552 = 5,

∵ 2 < 5

Hence,

145525 < 145552

ankoles [38]3 years ago

4 0

You have to use this sign <

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Answer:

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And we can find this probability with the complement rule:

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Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the disagreements of a population, and for this case we know the distribution for X is given by:

$X \sim N(4.4,0.4)$

Where $\mu=4.4$ and $\sigma=0.4$

We are interested on this probability

$P(X>4)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X>4)=P(\frac{X-\mu}{\sigma}>\frac{4-\mu}{\sigma})=P(Z>\frac{4-4.4}{0.4})=P(z>-1)$

And we can find this probability with the complement rule:

$P(z>-1)=1-P(z$

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3 years ago

What is formula in your own words?

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A mathematical relationship or a rule mostly expressed in symbols

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2 years ago

The sum of three consecutive even integers is -78, what are the integers ?

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First, you need to analize and understand the problem, then you must choose and strategy. There is a wide variety of strategies to solve a mathematical problem, in this case, you can use the following, which is based on the information given above:
1. You have that the sum of three consecutive even integers is $-78$ , therefore, you can given the variable $x
$ to the first integer, the second even integer is $x+2$ and the third one is $x+4
$ .
2. Calculate x:
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 $3x+6=-78$
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$ 
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$ 
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$ 
Therefore, the answer is: $-28,-26,-24
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2 years ago

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zimovet [89]

Answer:

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(B)

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Step-by-step explanation:

Part 1

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Cost of Rental A, C= 15hx

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Cost of Rental C, C=9x+20

Part 2

The graph of the three models is attached below

Part 3(11.05-4.30)

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Cost of Rental C, C=9x+20=9(4.42)+20=$59.78

Rental C should be chosen as it offers the lowest cost.

Part 4 (11.05-12.30)

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Rental A should be chosen since it offers the lowest cost.

Part 5

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