Answer:
45
Step-by-step explanation:
x + x + 2x = 180 {Sum of angles of a triangle}
4x = 180 {Divide both sides by 4}
x = 180/4
x = 45
Answer:
-40
Step-by-step explanation:
Multiply both sides by the reciprocal of 9/10 to get rid of the fraction
×
×y=-36 ×
y=-36×
y=
y=-40
Answer:
28/45
Step-by-step explanation:
Answer:
![\displaystyle [8, -2]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B8%2C%20-2%5D)
Step-by-step explanation:
2x - 18 = x - 10
−8 = −x
[Plug this back into both equations above to get the y-coordinate of −2]; 
I am joyous to assist you anytime.
Answer:
QR = 7.6 cm
Step-by-step explanation:
By theorem of tangents drawn from an external point to a circle,
"Tangents drawn from an external point to a circle are equal in measure"
By this property,
PQ = PT = 3.8 cm
And PR = PT = 3.8 cm
Since, QR = PQ + PR [By segment addition postulate]
QR = 3.8 + 3.8
QR = 7.6 cm
