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Maksim231197 [3]
3 years ago
11

Complete the expression so it forms a perfect-square trinomial. x² - 5x +

Mathematics
2 answers:
gladu [14]3 years ago
8 0

Answer:

x² -5x + (5/2)²

Step-by-step explanation:

x² -5x + b² = (x + y)² = x² + 2xy + y²

-5x = 2xy   ∴-5 = 2y       y = - 5/2

b² = y²       b = y = - 5/2

Expression: x² -5x + 25/4 = (x - 5/2)²

mezya [45]3 years ago
6 0

Answer: The perfect-square trinomial is x^2 - 5x + 25/4 = (x - 5/2)^2

Step-by-step explanation:

A perfect square trinomial is someting like:

(a + b)^2 = a^2 + b^2 + 2ab

then, if we have:

x^2 -5x +

one of the therms is a = x, let's find b.

-5 = 2b

then b = -5/2

then we have:

x^2 - 5x + (5/2)^2 = x^2 - 5x + 25/4 = (x - 5/2)^2

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the coordinates of a pentagon ABCDE are A(-5,4),B (1,4),C(1,-1), D(-2,-5) and E(-5,-1) what is the perimeter of the pentagon
kogti [31]
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3 years ago
Limit as x approaches infinity: 2x/(3x²+5)
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BUT, notice the denominator, for the same values of "x", the denominator becomes larg"er" than the numerator on every iteration, ever becoming larger and larger, and yielding a fraction whose denominator is larger than the numerator.

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liubo4ka [24]

Answer:

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Step-by-step explanation:

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We will use C = 2πr since we have r given in the photo

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