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katrin2010 [14]
3 years ago
12

Will give Thanks! Please Help!

Mathematics
2 answers:
Natalija [7]3 years ago
6 0
X=7 you use proportions. If you take one side length, such as 24 and 32 you will see that the polygon with a side of 24 is 3/4 the length of the polygon of 32. So you can say that 6/? = 3/4. Since 3 is half of 6, we can double 3 and 4 to get 6/8. Since the length of the side is subtraction of one, it would be 7
Lady bird [3.3K]3 years ago
5 0
Look at the left side of the polygon. Since they are both real numbers, we can use those to set up a proportion:

16:12=(x-1):6


Now, we can cross multiply and solve:
96=12(x-1)
96=12x-12
108=12x
9=x

The value of x is 9

Hope this helped!

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Is this statement always, sometimes, or never true.
cestrela7 [59]

Answer:

Never true

Step-by-step explanation:

Linear angles are adjacent angles whose sum is 180

3 0
3 years ago
Certain gases in the atmosphere trap heat on Earth.
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3 years ago
Write the complex number -2+2i in polar form
FromTheMoon [43]
For polar form you need to find the modulus (length of the vector) and the argument (angle of the vector) and present in form rcis(Arg) or re^Argi

start with the modulus r=sqrt(a^2 +b^2)
                                     =sqrt(-2^2 +2^2)
                                     = sqrt(4+4)
                                     =sqrt(8)
                                     =2sqrt(2)

next the argument, firstly arg=tan(b/a)
                                              = tan(2/2)
                                              =tan(1)
                                             =pi/4 .     (exact values table)
Now consider the quadrant the complex number is in, as it is (-2,2) it is in the second quadrant and as such your Arg value is:
Arg=pi-arg
     = pi-pi/4
     = 3pi/4

add it all together and your complex number in polar form is:
2sqrt2cis(3pi/4)

note: cis is short hand for cos(x)+isin(x), it is possible your tutor would rather you use the complex exponential form which is simply re^Argi and your answer would look like:
2sqrt2e^(3pi/4)i

Also notice the difference between arg and Arg as this often slips students up and always present Arg in prinicple argument form ie -pi<Arg<pi

Hopefully this has been clear enough and good luck

8 0
3 years ago
B is between A and C. C is between B and D. If BC = 45 and CD is 20. If AB = CD, what is the measure of AD?
mafiozo [28]

Answer:

AD = 85

Step-by-step explanation:

AD = AB + BC + CD ( substitute values , noting AB = CD = 20 ) , then

AD = 20 + 45 + 20 = 85

6 0
3 years ago
Simplify<br> (10^-2/10^3)^-1<br><br> a-100,000<br> B 1/-10 <br> C1/10<br><br> D 100,000
nignag [31]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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