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Sladkaya [172]
3 years ago
8

Can someone help me with 16 and 20? If you’re supposed to write a contrapositive and inverse, but the word not is already in the

statement, what do you do?

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0
Since 2 'not's cancel out, 16's contrapositive is 'If the light will go on, then the fuse has not blown'. In addition, the inverse would be 'If the fuse has not blown, then the light will go on'. I challenge you to do 20 using this information!
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What is the square root of –16?<br><br><br><br> –8i<br><br> –4i<br><br> 4i<br><br> 8i
Ad libitum [116K]

we know that

i^{2} =-1

we have

\sqrt{-16} =\sqrt{(-1)*(16)} =\sqrt{(-1)*(4^{2})}

substitute the value of i^{2}=-1 in the expression above

\sqrt{(-1)*(4^{2})}=\sqrt{i^{2}*4^{2}} \\ \\= 4i

therefore

<u>the answer is</u>

4i


7 0
3 years ago
Read 2 more answers
Help PLease! PLease explainn how to do these types of equations!
leonid [27]

Answer:

4xy See image.

Step-by-step explanation:

Remember for division questions to use Keep, Change, Flip. You will Keep the first term the same. Change the divide to times. And Flip the second term (turn it upside down, in math this is called the reciprocal)

Also, you need to know when you you get to the part where everything is times, then you times: top×top, and bottom×bottom.

Once everything is times, you can rearrange the order and cancel (cancel is not really the mathy thing happening, you are dividing---

x/x is 1 and y/y is 1,

10/5 is 2, 6/3 is 2) See image.

7 0
2 years ago
Find the value of y.
Firlakuza [10]

Answer:

  60°

Step-by-step explanation:

The value of y is half the measure of the arc the chord subtends:

  y = 120°/2

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7 0
3 years ago
Find the length of the missing side Drag and drop the length of the missing side into the box to complete
babymother [125]
The answer would be 13.9
5 0
4 years ago
Read 2 more answers
SHOW YOUR WORK
VashaNatasha [74]
As we know that the sum of two sides of a triangle is greater than the third side ...

Option A is correct because 4+5=9>8

Option B is correct because 9+12=21>15

Option C is correct because 12+5=17>13

Hope it helps.....
6 0
4 years ago
Read 2 more answers
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