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6.25 points out of 6.25Question 7Incorrect0.00 points out of 6.25Perform the indicated operation and write the answer in scientific notation.(1.2 ×10 )(3.8 ×10 )Select one:a. 4.56 ×100b. 4.56 ×10c. 4.56 ×10d. 5 ×10The correct answer is: 4.56 ×10Simplify the expression. Write your answer with positive exponents only.Select one:a. b. c. d. The correct answer is: 671313421313-2-13 of 10
Question 8Incorrect0.00 points out of 6.25Question 9Incorrect0.00 points out of 6.25The correct answer is: Convert the expression to radical notation.xSelect one:a. 7b. c. d. The correct answer is: Simplify the expression by using the properties of rational exponents. Write the final answer using positive exponents only.(x y)Select one:a. xyb. x yc. x yd. xyThe correct answer is: xy1/74 8 2/314/3 26/34 84 16/38/3 16/38/3 16/34 of 10
Question 10Incorrect0.00 points out of 6.25Question 11Incorrect0.00 points out of 6.25Question 12Incorrect0.00 points out of 6.25The correct answer is: xyAdd the radical expressions.9+ 6Select one:a. 15b. 54c. 15d. Cannot be simplified furtherThe correct answer is: 15Subtract the polynomials and simplify.