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3 years ago

What is the value of x

Mathematics

2 answers:

liraira [26]3 years ago

8 0

180 - 100 = 80

x + 70 + 80 = 180

x + 150 = 180

x = 30

Answer

B. 30

Orlov [11]3 years ago

4 0

Hey!

The sum of all 3 angles in a triangle always adds up to 180°. One of the angles is 70°. Another angle is 80° because 180 - 100 = 80. Add the 2 angles and subtract it from 180.

$70 + 80 = 150$

The sum of the 2 angles is 150°. Subtract that from 180

$180 - 150 = 30$

That means x is equal to 30

$\framebox{Answer = 30 \° = B}$ .

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___________________________Please help?

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The expression $27x^{4} +15x^{3} +53x^{2}$ is called as option d) Quartic Trinomial.

Step-by-step explanation:

The given expression is $27x^{4} +15x^{3} +53x^{2}$ .

To find the number of terms :

one-term polynomial is called a monomial
two-term polynomial is called a binomial and
three-term polynomial is called a trinomial

"The number of terms in the expression is Three."

The three terms are as follows :

⇒ First term is $27x^{4}$

⇒ Second term is 15x³

⇒ Third term is 53x²

Therefore, the given expression is called a "trinomial" with respect to the number of terms in it.

To find the degree :

The degree of a polynomial is the highest of the degrees of the individual terms in it with non-zero coefficients.

Here, in this expression $27x^{4} +15x^{3} +53x^{2}$ the highest degree is 4.

Fourth degree is known as "Quartic".

Now, combining the number of terms and degree in the given expression, it is known as "Quartic Trinomial" which is option D).

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