Which symbol replaces ? to make the statement true? 2⋅18−18 ? 2⋅[28−3⋅(2+4)] A. > B. = C. < Which expression has a value greater than the given expression when a = 2? 2(a + 6) A.2a + a² B.4a + 8
Accepted Solution
A:
First I would simplify each side in order to determine the symbol.2 × 18 - 18 ? 2 × [28 - 3(2 +4)] I will simplify the left side first. Multiply 2 and 1836 - 18 ? 2 × [28 - 3(2+4)]18 ? 2 × [28 - 3(2 + 4)] Now simplify the right side. Add 2 and 418 ? 2 × [28 - 3(6)] Next multiply 3 and 618 ? 2 × [28 - 18]18 ? 2 × 1018 ? 2018 < 20 Your answer is C because 18 is less than 20
First find the value of the give expression2(a + 6) Since a = 2, plug in 2 for a2(2 + 6)2(8) = 16 A.) 2a + a² Plug in 2 for a2(2) + (2)²4 + 4 = 8 B.) 4a + 8 Plug in 2 for a4(2) + 88 + 8 = 16 Neither A or B have a value greater than the given expression