<span>So the question is can a triangle have two right angles. In Euclidian (flat) geometry the sum of all angles, in a triangle, by definition, must be equal to 180 degrees. Right angle, again, by definition, is an angle which has 90 degrees. So if we had two right anges in a triangle it wouldnt be a triangle anymore. The sides wouldn't connect. So, we can't have two right angles in a triangle, only one, because the sum of two other angles must be 90 degrees. </span>
Answer:
Step-by-step explanation:
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C. x³-4x²-16x+24.
In order to solve this problem we have to use the product of the polynomials where each monomial of the first polynomial is multiplied by all the monomials that form the second polynomial. Afterwards, the similar monomials are added or subtracted.
Multiply the polynomials (x-6)(x²+2x-4)
Multiply eac monomial of the first polynomial by all the monimials of the second polynomial:
(x)(x²)+x(2x)-(x)(4) - (6)(x²) - (6)(2x) - (6)(-4)
x³+2x²-4x -6x²-12x+24
Ordering the similar monomials:
x³+(2x²-6x²)+(-4x - 12x)+24
Getting as result:
x³-4x²-16x+24
2/3=.6 repeating
12/.6 repeating = 18
13 balls of yarn would be used to make 18 scarves.