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3 years ago

Is 144 a perfect square?

Mathematics

2 answers:

garri49 [273]3 years ago

4 0

Answer:

Yes

Step-by-step explanation:

Because its the square root of 12

zheka24 [161]3 years ago

4 0

Sure is. The square root should be 12

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Pythagorean theorem 19^2 + 21^2=x^2

alexira [117]

Answer:

x = 28.32 units.

Step-by-step explanation:

Given:

Longer leg = 21

Shorter leg = 19

Hypotenuse = x

To Find:

Hypotenuse = x = ?

Solution:

Pythagoras Theorem States that

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

Substituting of the given value above equation we get

$x^{2} =21^{2}+ 19^{2}\\ \\x^{2}=441 + 361\\\\x^{2}=802\\ \therefore x=\pm\sqrt{802} \\\textrm{as x cannot be negative}\\\therefore x=\sqrt{802}\\\\\therefore x=28.319\ units\\\therefore x=28.32\ units$

7 0

3 years ago

Read 2 more answers

A frame of width a surrounds a 5 by 7 inch photograph. Find the expression that represents the area of the frame in terms of a.

Arada [10]

See diagram
totalarea=totallengtht times totalwidth=(2a+5) times (2a+7)=4a²+24a+35

minus original aera
which is 5 by 7 which is 35

4a²+24a+35-35=4a²+24a

3rd option I think, can't tell which is which

4 0

3 years ago

there is a college student who wants to buy apples from the local store. the store generally sells about 5 apples for every 2 cu

myrzilka [38]

125 apples sold after 6 hours

3 0

3 years ago

HELP PLEASE!!

pogonyaev

Answer:

You need to have both the opposite and adjacent side of the right angled triangle. Tan = Opp/Adj

Step-by-step explanation:

Tangents are pretty much everywhere. A good example is maybe a slide at the playground. You’d need the tangent to figure out the angle of the slide and how it is.

The radius from the center of a circle to the point of tangency point shows that it would be perpendicular to the tangent line considering that anything with a radius is circular and the tangent line is… a line, making it impossible to be parallel.

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3 years ago

Carlos is arranging books on shelves. He has 56 novels and 16 autobiographies. Each shelf will have the

labwork [276]

Answer:

Step-by-step explanation:

it would be 72 because your adding 56+16 and that equals 72 numbers he will use

8 0

3 years ago