What number, when substituted for x in the following problem, will make the problem true? 6x + 8x = 10x How can you insert two radical signs in the following problem to make it true? 5 = 4 + 4 + 4⁄4 Square the following numbers. a. 4 b. 6 c. 13 d. 10 Cube the following numbers. a. 1 b. 2 c. 4 d. 8 Rewrite the following exponential abbreviations as multiplication problems. a. 22 b. 84 c. 123 d. 205 Write the following multiplications as exponential abbreviations. a. 5 × 5 b. 7 × 7 × 7 × 7 c. 2 × 2 × 2 d. 9 × 9 × 9 × 9 × 9 Write the values of the following exponential abbreviations. a. 33 b. 142 c. 125 d. 90 e. 44 f. 171 Rewrite each number using scientific notation. a. 7,600 b. 23,400 c. 167,000 d. 2,000,000,000 Rewrite each scientific notation as a regular number. a. 9.7 × 104 b. 7 × 105 c. 8.97 × 107 d. 3.2 × 1010 Find each of the following square roots. (Hint: All examples are perfect squares.) a. √16 b. √169 c. √64 d. √400

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.