Answer:
70. 0
71. -54
72. 12
73. 86
74. 59
Step-by-step explanation:
To evaluate an expression, substitute specific values for the variables and simplify using Order of Operations.
70. c-3d becomes
[tex](1)-3(\frac{1}{3}) = 1-(\frac{3}{3}) = 1-1 = 0[/tex]
71. [tex]x+x^3-4x^4[/tex] becomes
[tex]2+2^3-4(2)^4 = 2+8-4(16) = 2+8-64=10-64=-54[/tex]
72. [tex]5a+3a^2[/tex] becomes
[tex]5(-3)+3(-3)^2 = -15 +3(9) = -15 + 27 = 12[/tex]
73. [tex]F=\frac{9}{5}C+32[/tex] becomes
[tex]F=\frac{9}{5}(30)+32=\frac{270}{5}+32 = 54+32 = 86[/tex]
74. [tex]F=\frac{9}{5}C+32[/tex] becomes
[tex]F=\frac{9}{5}(15)+32=\frac{135}{5}+32 = 27+32 = 59[/tex]
