The keypad on Sam’s cell phone is shown at right. As you can see, there is a relationship between the letters and numbers. When

Sam writes a text message, he thinks of the letter in the

word he is typing and presses the correct numbered key

When i did the math i got 11 cm

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*