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Lapatulllka [165]
3 years ago
9

Okay... so like here's the thing... I compleatly forgot how to do this and I don't know why... (probably because I'm stupid...)

and the notes I took make no sense... all I know is what ever my teacher did, it was something a bit more complecated... I think, sorry for being ( enter choice of word. e.x. Stupid, dumb, ect.)
Question: √144 how do I rewrite the radical while extracting all the perfect sqares.
Mathematics
1 answer:
elixir [45]3 years ago
4 0

Answer:

Step-by-step explanation:

The number itself is a perfect square, so it's going to be hard to do.  What I'm trying to say is that there won't be anything left over underneath the square root sign.

Perfect squares.

144: 4 * 36

√144 = √(4 * 36)

√144 - √4*√36

√144 = 2 * 6 = 12.

In my opinion, the better way to do it is to factor the number down to it's primes. This works much better with larger numbers.

Suppose you want √480

480: 2 * 240

480: 2 * 2 * 120

480: 2 * 2 * 2 * 60

480: 2 * 2 * 2 * 2 * 30

480: 2 * 2 * 2 * 2 * 2 * 15

480: 2 * 2 * 2 * 2 * 2 * 3 * 5

How do you know when to quit? There are 2 rules.

  • Keep dividing by a prime until it gives you a decimal remainder.
  • Keep dividing by the next prime until you have nothing but primes.

So now we have

√480 = √(2 * 2 * 2 * 2 * 2 * 3 * 5)

Here's your last rule: for every pair of like factors you take out one from underneath the root and throw the other one away.

√480 = 2 * 2√ 2 * 3 * 5

√480 = 4√30

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The strength of the association rule is known as _____ and is calculated as the ratio of the confidence of an association rule t
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Answer:

Lift

Step-by-step explanation:

Finding patterned and relationship between large sets of data can be obtained using the association rule as it finds insights, relationships and trends within sets of data variables. Lift is a parmater of interest whichbus used when performing analysis on association between variables in datasets. The Lift is literally the ratio of confidence to expected confidence. Where, the confidence of association is divided by the expected confidence (benchmark confidence).

3 0
3 years ago
A person invests 7000 dollars in a bank. The bank pays 5.5% interest compounded
kotykmax [81]

The time required to get a total amount of $13,200.00 with compounded interest on a principal of $7,000.00 at an interest rate of 5.5% per year and compounded 12 times per year is 11.559 years. (about 11 years 7 months)

Answer:

t = 11.559 years

<h3>Compound Interest </h3>

Given Data

  • Principal P= $7000
  • Rate r= 5.5%
  • Final Amount A = $13200
  • Time t = ??

(about 11 years 7 months)

Calculation Steps:

First, convert R as a percent to r as a decimal

r = R/100

r = 5.5/100

r = 0.055 per year,

Then, solve the equation for t

t = ln(A/P) / n[ln(1 + r/n)]

t = ln(13,200.00/7,000.00) / ( 12 × [ln(1 + 0.055/12)] )

t = ln(13,200.00/7,000.00) / ( 12 × [ln(1 + 0.0045833333333333)] )

t = 11.559 years

Learn more about compound interest here:

brainly.com/question/24924853

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2 years ago
Which of the following points is a solution to the system of linear inequalities?
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A is the correct answer




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There are 12 inches in one foot, creating the equation y=12x If a door frame is 5.75 feet tall, how many inches tall is it?
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There are 69 inches in 5.75 feet.
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What is the diameter of a circle if the circumference is 11?​
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Answer:

d≈3.5

Step-by-step explanation:

d= C/π =11/π≈3.50141

Brainliest plz

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4 years ago
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