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devlian [24]
3 years ago
14

Can you help me please ​

Mathematics
1 answer:
stellarik [79]3 years ago
8 0

Answer:

sine 23 = x/21

Multiply both sides by 21

21 x sine 23 = x

Now, use a calculator and find the answer of the 21 times the sine of 23:

x = -17.7706284876

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last week the game system was $450. This week the system is on sale for $337.50. By what percent is the price reduced?
zheka24 [161]
25% reduced
you take 337.50 divide by 450 which gives you .75
so you take 100% minus 75% and you get 25%

you can check the work by taking 450 time .25 which gives you 112.5 . and subtract that from 450 you'll end up with 337.50
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3 years ago
Find the slope of the line passions through the points(-6,3) and (-6,-1)
VLD [36.1K]

Answer:

The slope of this line would be undefined.

Step-by-step explanation:

In order to find the slope of any line, use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

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Answer:

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  3. 4
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Step-by-step explanation:

In order to fill the first blank, we need to look at the second line to see what the coefficient of x is.

  1. x² +<u> </u><u>4 </u>x +2 = 0

The constant is subtracted from both sides to get the second line.

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The value that is added on the third line is the square of half the x-coefficient: (4/2)² = 4

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On the fourth line, the left side is written as a square, and the right side is simplified. The square root is taken of both sides.

  4. √(x +2)² = ±√<u> 2 </u>

Finally, 2 is subtracted from both sides to find the values of x.

  5. x = <u> -2 ±√2 </u>

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