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goldfiish [28.3K]
2 years ago
10

What are the values of the variables

Mathematics
2 answers:
White raven [17]2 years ago
8 0

Answer:

21

Step-by-step explanation:

we know that according to the isosceles triangle theorem, that the angles of the triangle are 90, 2x+3, 2x+3

from the triangle angle sum theorem, we know that 4x+6 = 90

solving, we get 4x=84, x=21

kramer2 years ago
8 0

Answer:

isosceles + a right angle, so both angles at the bottom are the same and equal to (2x+3).

so we have 180 degrees = 90 + (2x+3) + (2x+3)

so x = 21

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blsea [12.9K]
You would need too do 5*5=25 if you did 5*7=35 that would be wrong
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3 years ago
Write 10 1/4 as a decimal number
EastWind [94]

Answer:

10.25

Step-by-step explanation:

1/4- is 0.25

SO

we don't have to change 10 because it is a whole number.

The answer is 10.25

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3 years ago
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Answer:

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Step-by-step explanation:

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ddd [48]

Answer:

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Step-by-step explanation:

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Determine if the expression r - 5√r+r² is a polynomial or not. If it is a
rewona [7]

The expression r - 5√r+r² is a polynomial.

<h3>What is a polynomial?</h3>

Mathematical expressions called polynomials have one variable and many exponents.

The algebraic expression must have all of its exponents be non-negative integers in order for it to be a polynomial. As a general rule, an algebraic expression isn't a polynomial if it contains a radical.

No part of an algebraic expression should be - Variables' square roots. variable powers that are fractional. variable powers that are negative. variables in any fraction's denominator.

Exponents, variables, and constants make up a polynomial. The amount of terms a polynomial has determines its name.

Polynomials come in various varieties. Monomial, binomial, and trinomial, respectively.

The idea of the graph of a polynomial equation was first introduced by René Descartes in La géometrie, published in 1637.

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