1
Write 0.071 64 correct to 2 significant figures.

0.071

Sig Figs

2

0.071

Decimals

3

0.071

Scientific Notation

7.1 × 10-2

E-Notation

7.1e-2

Words

zero point zero seven

Step-by-step explanation:

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

0.6

39mph

step-by-step explanation: