If sin(y°) = cos(x°), which of the following statements is true?

The correct statement is  y=w and ABC  ~ CDE

Step-by-step explanation:

According to the attached picture:

sin(y°) = cos(x°)

But also notice that cos(x°) is also equal to sin(w°). We can write it as:

cos(x°)=sin(w°)

It means that sin(y°) =sin(w°).

y=w

And we already know that:

∠CAB = ∠ECD where y=w

Therefore,

∠ABC = ∠CDE   = 90°

Thus the correct statement is

y=w and ABC  ~ CDE

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.

have a nice day!