3 years ago

Simplify the rational expression below.

Mathematics

1 answer:

LenKa [72]3 years ago

3 0

Answer:

A) (x-7)/(x+4)

Step-by-step explanation:

(x^2-10x+21)/(x^2+x-12)=[(x-3)(x-7)]/[(x+4)(x-3)]=(x-7)/(x+4)

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Daniel [21]

Answer:

Step-by-step explanation:

12d - 7 = 41

12d = 48

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2 years ago

Make r the subject of the formula <br>v = \pi \: h {}^{2}(r - \frac{h}{3})v=πh2(r−3h) <br>

mel-nik [20]

Answer:

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Step-by-step explanation:

$Solve \: for \: r: \\ = > v= \pi {h}^{2}(r - \frac{h}{3} ) \\ \\ v=\pi {h}^{2}(r - \frac{h}{3} )is \: equivalent \: to \: {h}^{2}\pi(r - \frac{h}{3} ) = v: \\ = > {h}^{2}\pi(r - \frac{h}{3} ) = v \\ \\ Divide \: both \: sides \: by \: \pi {h}^{2} : \\ = > r - \frac{h}{3} = \frac{v}{\pi {h}^{2} } \\ \\ Add \: \frac{h}{3} \: to \: both \: sides: \\ = > r = \frac{h}{3} + \frac{v}{\pi {h}^{2} }$

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2 years ago

The ratio of green food coloring to blue food coloring is 1:2 we used 6 drops of blue how many total drops of food coloring did

Marianna [84]

green:blue

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3 years ago

What is 10 x 2.3-5 in standard notation?

timofeeve [1]

Answer:I think it’s option d

Step-by-step explanation:

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