Check each true statement about the number 7- square root 3i a) 7 is the real part of the number. b) square root 3 is the imaginary part of the number. c) 7- square root 3 is the coefficient of i. d) this number is the sum of a real number and an imaginary number.

the answers are A B D

Step-by-step explanation:

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

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.