What does x equal help please

Step-by-step explanation:

angle HIJ=107°

angle IDJ=31°

now,

angle HIJ+angle JID=180°{ being straight angle}

107+angle JID=180°

angle JID=180°-107=73°

again,

angle JID+angleIDJ+angleDJI=180°{ sum of angle of triangle}

73°+31°+angleDJI=180°

angle DJI=180°-1104°=76°

hence,

angleAJF=angleDJI{ vertically opposite angle}

x=76°

hope it helps.

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

the number 100 represents the number of trials in the experiment.

49/100 represents the experimental probability of the coin landing heads up.

step-by-step explanation: