2. Calculate the answers to the appropriate number of significant figures. a.) 32.567 + 135.0 + 1.4567 =
b.) 246.24 + 238.278 + 98.3 =
C.) 658.0 + 23.5478 + 1345.29 =

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the diameter is 16 cm. are you a teacher?

step-by-step explanation: