Jennifer says that you can also write (12 — 3) X 2 for the phrase in the example. Is Jennifer correct?

Mathematics

1 answer:

tatiyna2 years ago

5 0

Answer:

Step-by-step explanation:

sorry to bother you but if you see a guy called breedall and sends you a sketchy link dont click it because its a virus on your computer

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Greg runs 3 miles in 28 minutes. At the same rate, how many miles would he run in 42 minutes?

Paladinen [302]

Answer:

4.5

miles

Step-by-step explanation:

Well, he runs

miles in

minutes. Also, see that

⋅

1.5

So, his journey would just be running

1.5

times, with each time running

minutes.

So, he runs a total of

1.5

⋅

4.5

miles

7 0

2 years ago

Read 2 more answers

Simplify the expression

kow [346]

Answer:

Step-by-step explanation:

$\dfrac{5x^3-8x^2-4x}{6x^2-18x+12}\\\\6(x^2-3x+2)\ne0\ \iff\ x=\frac{3\pm\sqrt{9-8}}{2}\ne0\ \iff\ x\ne2\ \wedge\ x\ne1\\\\\\\dfrac{5x^3-8x^2-4x}{6x^2-18x+12}=\dfrac{x(5x^2-8x-4)}{6(x^2-3x+2)}=\dfrac{x(5x^2-10x+2x-4)}{6(x^2-2x-x+2)}=\\\\\\=\dfrac{x[5x(x-2)+2(x-2)]}{6[x(x-2)-(x-2)]} =\dfrac{x(x-2)(5x+2)}{6(x-2)(x-1)}=\dfrac{x(5x+2)}{6(x-1)}=\dfrac{5x^2+2x}{6x-6}\\\\\\f(x)=5x^2+2x\\\\g(x)=6x-6$