Which expression has a value less than the given expression when x = 5? 3x + 15 2x² x² + 5 3(x + 5) 4x + 5

Put the value of x = 5 to the expression:

3x + 15 → 3(5) + 15 = 15 + 15 = 30

2x² → 2(5)² = 2(25) = 50 > 30

x² + 5 → 5² + 5 = 25 + 5 = 30

3(x + 5) → 3(5 + 5) = 3(10) = 30

4x + 5 → 4(5) + 5 = 20 + 5 = 25 < 30

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13