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4 years ago

Someone help me with this question please I’ll mark u as brilliant :))

Mathematics

1 answer:

SCORPION-xisa [38]4 years ago

3 0

Answer:

3 $\sqrt{141}$

Step-by-step explanation:

Use the Pythagorean Theorem.

$37^{2}$ = $x^{2}$ + $10^{2}$

1369= $x^{2}$ +100

-100 -100

1269= $x^{2}$

$\sqrt{1269}$ = $\sqrt{x^{2} }$

3 $\sqrt{141}$ =x

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Simplify: √27x^2y^2 A) 27xy B) 3xy C) 3xy√3 D) xy√27

iren2701 [21]

Answer:

$\sqrt{27x^2y^2}=3xy\:\sqrt{3}$

Hence, option C is correct.

Step-by-step explanation:

Given the expression

$\sqrt{27x^2y^2}$

simplifying the expression

$\sqrt{27x^2y^2}=\sqrt{27}\sqrt{x^2}\sqrt{y^2}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \mathrm{\:assuming\:}a\ge 0$

$=\sqrt{27}x\sqrt{y^2}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \mathrm{\:assuming\:}a\ge 0$

$=\sqrt{27}xy$

$=xy\sqrt{3^3}$

$=xy\sqrt{3^2\cdot \:\:3}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \mathrm{\:assuming\:}a\ge 0$

$=3xy\:\sqrt{3}$

Therefore,

$\sqrt{27x^2y^2}=3xy\:\sqrt{3}$

Hence, option C is correct.

6 0

3 years ago

Is 8.81 greater than 8.9

Umnica [9.8K]

Answer:

Step-by-step explanation:

8.9>8.81 because if you round up it would be 8.8 and 8.9

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3 years ago

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The diagram represents the factorization of x2 – 9x + 18. It is partially completed.

djyliett [7]

I hope this helps you

x^2-9x+18=0

x -6

x -3

(x-6)(x-3)=0

x-6=0 x= 6

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3 years ago

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Mumz [18]

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Step-by-step explanation:

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13 x .25 = 3.25

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3 years ago

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