Answer:The measure of angle RST is 120\°
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
m<RST=(6x+12)\° -----> equation A
m<RST=78\°+(3x-12)\° -----> equation B
equate equation A and equation B
(6x+12)\°=78\°+(3x-12)\°
Step-by-step explanation:
3a-50=8
3a=50+8
3a=58
a= 19and 1/3
(3,-1)(4,3)
slope(m) = (3 - (-1) / (4 - 3) = 4/1 = 4
y = mx + b
slope(m) = 4
use either of ur sets of points....(4,3)...x = 4 and y = 3
now sub and find b, the y int
3 = 4(4) + b
3 = 16 + b
3 - 16 = b
-13 = b
so ur equation is : y= 4x - 13 <==
To convert 2.77777777777 to a fraction:
Assume x = 2.7777777777......equation 1
Now, notice that the repeating digit is 7
multiply both sides of the equation by 10:
10x = 27.7777777777.......equation 2
Subtract equation 1 from equation 2 as follows:
10x - x = 27.7777777777 - 2.7777777777
9x = 25
Therefore x = 25/9
Based on this, 2.7 repeated can be written as a fraction = 25/9