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4 years ago

3(x+2)=2(x+5) i really need help

Mathematics

2 answers:

Ivan4 years ago

6 0

Answer:

x=4

Step-by-step explanation:

3(x+2)=2(x+5)

opening brackets

3x+6=2x+10

3x-2x=10-6

1x=4

MrRa [10]4 years ago

5 0

Answer:

x=4

Step-by-step explanation:

3(x+2)=2(x+5)

Clear the brackets by multiplying

3x+6=2x+10

Collect like terms

3x-2x=10-6

x=4

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Answer:

Step-by-step explanation:

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Semmy [17]

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To find increasing and decreasing intervals we take derivative

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Now we set the derivative =0 and solve for x

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Now we pick a number between 0 to $\frac{3\pi }{4}$

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Plug it into the derivative

$f'(x) =e^{\frac{\pi }{2}}(sin(\frac{\pi}{2})+cos(\frac{\pi }{2}))$

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Lets pick $\frac{11\pi}{6}$

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The graph of f(x) increases and reaches a local maximum at $x=\frac{3\pi}{4}$

The graph of f(x) decreases and reaches a local minimum at $x=\frac{7\pi}{4}$

(c)

f(0) = 0

$f(2\pi)=0$

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$f(\frac{7\pi}{4})=-172.64$

Here global maximum at $x=\frac{3\pi}{4}$

Here global minimum at $x=\frac{7\pi}{4}$

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