3 years ago

Someone to work out this sum in factorisation = 28-21w+14

Mathematics

1 answer:

Arisa [49]3 years ago

6 0

14-21w i believed based on my learning

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X - 2y = -3<br> 2x + y = -1

bezimeni [28]

Answer:

y = 1

x = -1

Step-by-step explanation:

x - 2y = -3, then x = 2y - 3

2x + y = -1

substitute for x:

2(2y - 3) + y = -1

4y - 6 + y = -1

5y = 5

y = 1

x = 2 - 3 = -1

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2 years ago

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Plz help.....................

Nata [24]

I'm pretty positive it would be the second one from the top

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3 years ago

What is the length of EF? (Giving 45 points, please hurry!)

diamong [38]

The answer is 5 since the total is 7 and you already have 2

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1 year ago

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A flying squirrel lives in a nest that is 9 meters high in a tree. To reach a fallen acorn that is 4 meters from the base of the

Luba_88 [7]

Answer:

Flying squirrel have to glide is for 9.8 meters approximately.

Step-by-step explanation:

Here we can use Pythagoras theorem.

Height is 9 , base is 4.

We need to find the hypotenuse measure.

So, let's use Pythagoras theorem $a^{2} +b^{2}= c^{2}$

Plug in a as 9 and b 4.

$9^{2} +4^{2}=c^{2}$

Simplify the left side of the equation

$81+16=c^{2}$

$97=c^{2}$

Take square root on both sides.

c=9.8 meters.

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2 years ago

What is the simplest form of 3 square root 27 a^3b^7?

4vir4ik [10]

$\sqrt[3]{27a^3b^7} = \sqrt[3]{3^3 \cdot a^3 \cdot b^6 \cdot b^} = 3ab^2(\sqrt[3]{b} )$

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3 years ago