What is the hypotenuse of a right triangle if the legs are each 20 inches long? Round to the nearest whole number. A. 28 B. 29 C. 30 D. 31

The answer is A.

Step-by-step explanation:

You have to apply Pythagoras Theorem :

P.S (Take note):

Pythagoras Theorem can only applied in right angle triangle.

We can find the hypotenuse by using the Pythagoras theorem/theory. The Pythagoras theorem states that,

= + where, h = hypotenuse, p = perpendicular, b = base

=> = +

=> = 400 + 400

=> = 800

=> h =

=> h = 28.284.....

Therefore rounded to the nearest whole number, we get,

h = 28

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-2 is the right

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

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