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Ivanshal [37]
3 years ago
5

Draw and compare models of 3/4 of a pizza pie and 6/8 of a same-size pie.

Mathematics
1 answer:
Reptile [31]3 years ago
4 0
Have a good day look down to see the answers its in paint.

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DUE IN 3 mins<br> C-9 at C= 16
bixtya [17]
7.
If c = 16
that means the equation is
16 - 9
which is 7
so 7
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What number is 24% of 80
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The answer to your query is 19.2
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Sidana [21]
The money is a lot so it would be c
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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
a concert has 6 selections. there are 515 seats in each selection. about how many seats are in the concerts hall
Serjik [45]

Answer:

3090

Step-by-step explanation:

6 x 515

6 0
3 years ago
Read 2 more answers
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