5. Points A, B and C are all the circle. O represents the centre.
Angle AOB = 2x+28 Angle ADB = 3x-70
Calculate the value for x

Step-by-step explanation:

angle acb=1/2angle aob=1/2(2x+28)(anble subtended by an arc at centre is double the angle subtended by it at any other parts of the circle)

angle c+angle d=180opp angles of a cyclic quad. are supplementry

hence,

x+14+3x-70=180

=>x=64

da freeck kinda math is this just drop out

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b