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3 years ago

Help please.... I have got this wrong 2xs only once chance left

Mathematics

1 answer:

Jet001 [13]3 years ago

7 0

Answer:

a: 5x-1 = -6

b: 5x-1 = -6

+1 +1

5x = -5

divide

x = -1

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3 years ago

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3 years ago

Need help with math<br> thank you

timofeeve [1]

Answer:

see below

Step-by-step explanation:

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)
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Using these to simplify your expression, you get ...

$\dfrac{-9x^{-1}y^{-9}}{-15x^{5}y^{-3}}=\dfrac{-9}{-15}x^{-1-5}y^{-9-(-3)}\\\\=\dfrac{3}{5}x^{-6}y^{-6}=\dfrac{3}{5x^6y^6}$

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4 years ago

What is equivalent to 5x+2

svetlana [45]

Not sure I understand this but
5x+2=0
5x = -2
x = -2/5
Or
x = -.4

7 0

3 years ago

3. Find the volume of the pyramid.

Gnoma [55]

Answer:

$916.11\:ft^{3}$

Step-by-step explanation:

Volume of the hexagonal pyramid = $1/3\times (area\: of \: hexagonal\:base)\times height$

Here sides of hexagonal base = 9 ft

So, Area of hexagon = $6\times \frac{\sqrt{3} }{4} a^{2}$

$6\times \frac{\sqrt{3} }{4} \times 9 \times 9$

$= 210.5$

Height is given, 13 ft

So, volume = $1/3\times 210.5\times 13$

$= 916.11\: ft^{3}$

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3 years ago