Answer:
b. a=-12
Step-by-step explanation:
3a-5a+10=34
multiply -5 times a and -2
-2a+10=34
-5a from 3a
-2a=24
subtract 10 from both sides
a=-12
-2a divided by both sides
Answer:
=> equation 1
=> equation 2
=> equation 3
Step-by-step explanation:
Points P, Q, R, S, and T are collinear therefore, the following equations can be written based on the segment addition postulate:
=> equation 1
=> equation 2
=> equation 3
More equations can actually be written from the diagram given using the segment addition postulate. Such as:

If the three numbers of a square in the complex plane are
, then the fourth complex number
.
Given
are three numbers.
Complex numbers are those numbers which extends the real numbers with an imaginary i. In this
. Major complex numbers are in the form a+ bi where a and b are real numbers.
let the fourth complex numbers be
. Then according to question;
=
=(cos π/2+i sin π/2) 


Now solving for x and y by equating both sides.
x=-2 and y=29
Put the value of x and y in 
Z=-2+29i
Hence if the three numbers which forms vertices of a square are
then the fourth complex numbers be
.
Learn more about complex numbers at brainly.com/question/10662770
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Intersecting lines? Coordinate plane? Not sure if correct it’s my guess this question is too confusing