Zvaries jointly as x and y, x = 3, y = 2 when z = 12. find z when x = 4 and y = 5.

there are no answer choices

step-by-step explanation:

answer: 12   they all have at least 28 days

step-by-step explanation: haha

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

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: