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2 years ago

5

Which expression is equal to

2 answers:

elena55 [62]2 years ago

5 0

Answer:

$\cfrac{\left(x+8\right)\left(x-8\right)}{x^2+13}$

Step-by-step explanation:

$\cfrac{x+8}{x+2}\cdot \cfrac{\left(x+2\right)\left(x-8\right)}{x^2+13}$

$\cfrac{\left(x+8\right)\left(x+2\right)\left(x-8\right)}{\left(x+2\right)\left(x^2+13\right)}$

$\cfrac{\left(x+8\right)\left(x-8\right)}{x^2+13}$

Sergio [31]2 years ago

4 0

Answer: the second option
explanation: below

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2 years ago

Please help me ASAP?!!

Blababa [14]

Answer:

(0,-5) and (-4,3)

Step-by-step explanation:

The given equations are

$\left \{ {{x^2+y^2=25} \atop {2x+y=-5}} \right.$

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7 0

2 years ago

Read 2 more answers

The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out. The resistance R is slowly increasin

hoa [83]

Answer:

$\frac{dI}{dt}=-0.00016 A/s$

Step-by-step explanation:

We are given that

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$V=IR$

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$\frac{dR}{dt}=0.07ohm/s$

We have to find rate of change of current I means $\frac{dI}{dt}$

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Substitute the values then we get

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$-0.06=389\frac{dI}{dt}+0.0021$

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$\frac{dI}{dt}=\frac{-0.0621}{389}=-0.000160 A/s$

Hence, the current I is changing at the rate=-0.00016A/s

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2 years ago