3 years ago

Gears A and B turn together. Gear A turns 20 times when

Mathematics

1 answer:

Bingel [31]3 years ago

7 0

Answer: Gear B turns 90 times when gear A turns 60 times

Step-by-step explanation: To solve this you just 30x3=90

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Determine if they following is systems of equations? y = 3x + 2 y = 7x -10

sergij07 [2.7K]

Answer:

Yes it is.

Step-by-step explanation:

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2 years ago

What are the possible values of x in 32x + 20 = 28x − 16x2?

klemol [59]

No two such factors can be found

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3 years ago

Please help asap solve x^4+5x^2+4=0

const2013 [10]

Answer:

$x=\pm i\text{ or }x=\pm2i$

Step-by-step explanation:

So we have the equation:

$x^4+5x^2+4=0$

Let's let u be equal to x². So:

$u^2+5u+4=0$

Factor:

$(u+1)(u+4)=0$

Zero Product Property:

$u+1=0\text{ or } u+4=0$

Subtract:

$u=-1\text{ or }u=-4$

Replace:

$x^2=-1\text{ or }x^2=-4$

Take square root:

$x=\pm\sqrt{-1}\text{ or }x=\pm\sqrt{-4$

Simplify:

$x=\pm i\text{ or }x=\pm2i$

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2 years ago

Thank you in advance for the help !!

babymother [125]

The Answer is C, my good friend.

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2 years ago

Help !! Pleaseeeeeeeee

marysya [2.9K]

Answer:

Step-by-step explanation:

arc BE is the same as the interior angle, or 76°

BE = 76 °

we can also find arc CE the same way, b/c we can see that the interior angle is the suppment with 76 or 180-76 = CE or 104°

Now we know all the arcs but arc CD

so use the idea that all the way around the circle is 360°

360 = 76 + 104 + 140 + CD

360 - 76 - 104 - 140 = CD

40 = CD

CD = 40 °

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3 years ago