3 years ago

Is the square root of 1/4 a rational number

Mathematics

1 answer:

Mrrafil [7]3 years ago

3 0

Yes the square root of 1/4 is a rational number

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A square has an area of 81x square cm. What is the perimeter of the square ?

Fudgin [204]

Answer:

The perimeter of the square is $36\sqrt{x}\ cm$

Step-by-step explanation:

step 1

Find the length side of the square

we know that

The area of a square is equal to

$A=b^{2}$

where

b is the length side of the square

we have

$A=81x\ cm^{2}$

substitute and solve for b

$81x=b^{2}$

square root both sides

$b=9\sqrt{x}\ cm$

step 2

Find the perimeter of the square

we know that

The perimeter of the square is equal to

$P=4b$

we have

$b=9\sqrt{x}\ cm$

substitute

$P=(4)9\sqrt{x}$

$P=36\sqrt{x}\ cm$

6 0

3 years ago

5. a. The area of an isosceles triangle is 60cm² and its base is 10cm. Find the length of its equal side.

Sindrei [870]

Answer:

H = 12cm

I hope I was able to help

4 0

2 years ago

A shopper bought shoes marked $40. the sales tax is 8%. how much did the shopper pay in all

guajiro [1.7K]

8% equals 3.2. If you add $40 plus $3.2 cents that shopper would of paid $43.2 cents.

6 0

3 years ago

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Find the slope line (- 6, 1), (4, 8)

AVprozaik [17]

Answer:

The slope is $\frac{7}{10}$

Step-by-step explanation:

☆Remember:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

☆We just plug in now!

$m = \frac{8 - 1}{4 - ( - 6)} = \frac{7}{10}$

6 0

3 years ago

Which of the following represents the factorization of the trinomal below

Mice21 [21]

B is the correct answer. If you use the distributive property correctly you will see why.

(4x+3)(2x+1)= 8x^2+4x+6x+3
= 8x^2+10x+3

please vote my answer brainliest. thanks!

5 0

3 years ago