S 5 U he statements below and choose the letter of your answer in each item. Write the answer in your paper. 1. Which of the following is the principal root of V-16,807 ? B.-7 C.4 D. 81 2. Numbers like 7.84, 169, and are called? A Decimal Numbers B. Irrational Numbers C. Square Roots D. Perfect Squares 3. What are the roots of V256 ? A-3 and +3 B. -4 and +4 C.-5 and 5 D. -6 and +6 4. What are the fourth roots of 81 and which is the principal root? A Square roots are +3 and -3. The principal root is +3. 3. Square roots are +9 and -9. The principal root is +9 C. Square roots are-3 and +9. The principal root is -3. D. Square roots are +3 and -9. The principal root is -9. 5. Which of the given below is an example of irrational number? A. B. C. 0.125 D. 0.93 6. What is the principal root of V-343? A. -6 B.-7 C.-8 D.-9 7. is the principal root of 2.5 a rational number? Why? A. Yes, because the index is even. B. No, because the index is not odd. C Yes, because the radicand is a perfect nth power of a number. D. No, because the radicand is not a perfect nth power of a number 8. Which statement is correct? A. The principal root of V-16 is-2. B. The principal root of 196 is -14. C. The principal root cannot be determined if n is even, and the given radicand is negative D. If the radicand is negative and n is odd, then the principal root is the positive nth root. 9 The following numbers refer to irrational numbers, EXCEPT C. 1696 D. V1 486 10. Which number CANNOT be expressed as an exact fraction? A. Decimal Number B. irrational Number D. Whole Number C. Rational Number A. 196 B. 7784​