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4 years ago

Simplify the square root of 147

Mathematics

1 answer:

Sergio [31]4 years ago

3 0

Answer:

7√3

Step-by-step explanation:

To simplify a square root, look for some of its factors. You are especially looking for factors that are square numbers, or sometimes factors that repeat (repeating factors give you a square number).

√147

=√3·49 Remember 49 is a square number, you can take out its square root.

=7√3 Simplified.

You might also end up with these factors instead.

√147

=√3·7·7 Two same factors mean a square number you can take out.

=7√3 Simplified form.

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Using the numbers 5 8 and 24 create a problem using no more than four operations addition subtraction multiplication division sq

lubasha [3.4K]

Answer:

$(\frac{24}{8})^{2}$ gives rational solution and $\sqrt{5}$ gives an irrational solution.

Step-by-step explanation:

We are given the numbers 5 , 8 , 24.

Using these numbers and maximum four operations given, we need to find the problem having a rational and irrational solution.

Now, applying two operations namely division and squaring, we define the following problem having a rational solution.

i.e. $(\frac{24}{8})^{2}$ = $(\frac{12}{4})^{2}$ = $3^{2}$ = 9, being an integer, it is a rational number.

Further, applying only one operation namely square root, we define the problem having an irrational solution.

i.e. $\sqrt{5}$ , which is an irrational number.

Hence, the problems $(\frac{24}{8})^{2}$ gives a rational solution and $\sqrt{5}$ gives an irrational solution.

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3 years ago

Question in the image

Komok [63]

Answer:

0.4

Step-by-step explanation:

consider this like some lines overlapping each other.

one line (A) is 0.5 long, the other (B) 0.4 long.

together they are 0.8 long.

that means that they overlap at a length of 0.1 (they share a segment 0.1 long).

of the combined line of 0.8 that has 0.1 of a joined segment, the complimentary part of B is therefore 0.4 (0.8 minus the original length of B).

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3 years ago

Subtract 1/6 a+3 from 1/3 a−5 .

steposvetlana [31]

$\frac{1}{6} a + 3 - \frac{1}{3}a - 5 = - \frac{a}{6} - 2$

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

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3 years ago

A pan has an original price of $32 but is marked down by 15 percent. Which equation shows the new price of the pan? (32 dollars)

tekilochka [14]

Answer:Its A) ($32) (100%-15%) = ($32) (85%) = 27.20

Step-by-step explanation:32 dollars) (100 percent minus 15 percent) = (32 dollars) (85 percent) = 27 dollars and 20 cents

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3 years ago

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The life expectancy (in hours) of a fluorescent tube is normally distributed with a mean 8000 and a standard deviation 1000. fin

Bad White [126]

Given that the ,mean is 8000 and the standard deviation is 1000, thus the probability that <span>tube lasts for more than 11000 hours. will be given by:
P(x>11000)
the z-score is:
z=(x-</span>μ<span>)/</span>σ
x=11000
μ=8000
σ=1000
hence:
z=(11000-8000)/1000
z=3
thus
P(x>11000)=1-P(x<11000)
But
P(x<11000)=P(z<3)=0.9987
hence
P(x>11000)=1-0.9987=0.0013

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4 years ago

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