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3 years ago

5

Which of the following is the correct factorization of the polynomial below? 2x^2-8x+8

2 answers:

Akimi4 [234]3 years ago

5 0

Answer:

2(x-2)²

Step-by-step explanation:

We have to factorize the given expression.

2x² - 8x + 8 = 2[x²- 4x + 4]

= 2(x - 2)² [since (a-b)² = a² + b² - 2ab]

Therefore, 2(x-2)² is the correct factorized form.

il63 [147K]3 years ago

4 0

The correct factorization is
2(x-2)²

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What is the length of line PS

stiks02 [169]

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$7x^2 - 49x- 56 = 0$

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$(x - 8)(x + 1) = 0$

$x - 8 = 0~~~or~~~x + 1 = 0$

$x = 8~~~or~~~x = -1$

x = -1 makes the lengths of segments PQ and PR equal zero.
That is not possible, so the solution x = -1 is discarded.

x = 8

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2 years ago

Read 2 more answers

Kay is running a 13.5 km race. If she runs at a rate of 8 2/5 km/he for 1.5 hours, how many kilometers will she have left to run

Monica [59]

The number of kilometers she will have left to run to finish the race is 0.9 km.

<u>Given the following data:</u>

Total distance = 13.5 km

Speed = $8\frac{2}{5} \;km/hr$

Time = 1.5 hours

To determine the number of kilometers she will have left to run to finish the race:

First of all, we would calculate the distance she has covered by using this formula;

$Distance = speed \times time\\\\Distance = 8\frac{2}{5} \times 1.5\\\\Distance = \frac{42}{5} \times \frac{3}{2} \\\\Distance = \frac{63}{5}$

Distance = 12.6 meters.

<u>For the </u><u>distance left</u><u>:</u>

$Distance\;left = Total\;distance - Distance\;covered\\\\Distance\;left =13.5 -12.6$

Distance left = 0.9 km.

Learn more about distance here: brainly.com/question/10545161

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2 years ago

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irakobra [83]

Answer: $\frac{10}{3}$

Step-by-step explanation:

Given

Bob can Paint a fence in 5 hr

so full job can be done in 5 hr

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so in 1 hr $\frac{1}{x}$ part of job is done

Also if they combine they can do the job in 2 hr

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