Answer:
x = 81, y = 68 and z = 99
Step-by-step explanation:
The external angle of a triangle is equal to the sum of the 2 opposite interior angles.
z is an exterior angle, thus
z = 63 + 36 = 99
x and z form a straight angle and are supplementary, so
x + z = 180, that is
x + 99 = 180 ( subtract 99 from both sides )
x = 81
The sum of the 3 angles in a triangle = 180°, thus
z + y + 13 = 180, that is
99 + y + 13 = 180
112 + y = 180 ( subtract 112 from both sides )
y = 68
Sorry I don't know but good luck!
Answer:
45 km/h
Step-by-step explanation:
Speed = x, distance= 360 km
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- 360/x= 360/(x-5)- 1
- 360/(x-5)-360/x= 1
- 360x-360(x-5)=x(x-5)
- x^2-5x=360*5
- x^2-5x- 1800=0
- x=45 km/h
You would multiply both sides by 8 in order to get the variable, x, by itself. Then the equation would be X=16.
Add the pieces together and then subtract the un shaded region
