4 years ago

5x + 1y + 4z=-1

Mathematics

1 answer:

kati45 [8]4 years ago

7 0

Answer:

[7, -4, -8]

Step-by-step explanation:

Just simply plug in each choice into the equations to confirm their authenticities.

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A worker bee flies 5/8 of a mile in 1/16 of an hour. At this rate, how far can the bee fly in 1 hour?

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Answer:

10 miles

Step-by-step explanation:

So we know that it flies 5/8 of a mile in 1/16 of an hour. So after flying 5/8 of a mile 16 times, we will reach an hour. So we can do 5/8*16 and we get our answer of 10. So the bee will have traveled ten miles.

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3 years ago

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3 years ago

Can someone please help me with this

Artist 52 [7]

9514 1404 393

Answer:

21. D

22. C

Step-by-step explanation:

21. The expansion of the given expression is ...

$\displaystyle -\frac{1}{2}\left(-\frac{3}{2}x+6x+1\right)-3x=\frac{3}{4}x-3x-\frac{1}{2}-3x\\\\=\left(\frac{3}{4}-3-3\right)x-\frac{1}{2}=\boxed{-5\frac{1}{4}x-\frac{1}{2}}$