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polet [3.4K]
3 years ago
6

What are the solutions to the equation 3(x-4)(x+5)=0

Mathematics
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

the solutions are 4 and -5

Step-by-step explanation:

3(x-4)(x+5)=0\\\\(x-4)(x+5)=0\\\\x-4=0\\\\x=4\\\\x+5=0\\\\x=-5

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TanA= 2xy/(x^2+y^2),<br>find sinA​
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Step-by-step explanation:

TanA = SinA/CosA

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2 years ago
My chemistry book is 8 years older than my Algebra book. In 6 years the chemistry book will be twice as old as the Algebra book.
4vir4ik [10]

Answer:

x + 14 = 2(x + 6)

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Step-by-step explanation:

Let

Algebra book age = x

Chemistry book age = x + 8

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= x + 14

Algebra book age = x + 6

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x + 14 = 2x + 12

x - 2x = 12 - 14

- x = - 2

Divide both sides by -1

x = 2

Check:

Chemistry book age = x + 14

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Algebra book age = x + 6

= 2 + 6

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What is 2/5 divided by 1/4
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