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2 years ago

Find the sum of the polynomials: (x2 + 4x + 5) + (3x – 3)

Mathematics

2 answers:

ella [17]2 years ago

6 0

+2x6 + 4x5 + x4 + 11x3 + 2x2 + 4x + 4

aniked [119]2 years ago

4 0

Answer:

x^2+7x+2

Step-by-step explanation:

hi! you can only combine terms with the same power (exponent value).

if we stack this like a regular addition problem, it will be easier.

x^2 + 4x + 5

3x - 3

-----------------------

4x+3x is 7x, and 5+ (-3) is 2. we keep the x^2 the same.

therefore, the answer is x^2+7x+2

hope this helps!

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viva [34]

Answer:

y = 16.

Step-by-step explanation:

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The small and large triangles are similar ( - that is corresponding angles are congruent).

So 2/(2+8) = x / 20

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Step-by-step explanation:

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3 years ago

PLEASE HELP ASAP.

alexandr1967 [171]

Answer:

$Y' = (-2, 4\frac{2}{3})$

Step-by-step explanation:

Given

$Y = (-3,7)$

$Scale\ Factor = (\frac{2}{3}x,\frac{2}{3}y)$

Required

Determine Y'

Y' can be solved by multiplying the scale factor by Y

i.e.

$Y' = Scale\ Factor * Y$

For, the x coordinates.

$Y' = \frac{2}{3}x$

Where

$x = -3$

$Y' = \frac{2}{3} * -3$

$Y' = \frac{-6}{3}$

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For the y coordinates:

$Y' = \frac{2}{3}y$

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$Y' = \frac{2}{3} * 7$

$Y' = \frac{14}{3}$

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$Y' = (-2, 4\frac{2}{3})$

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