1. Find the real-number root. sqrt-1.21 -0.605

1.1

-1.1

no real number root

2. Which of the following is equal to sqrt50a^6b^7?

5a^3b^3 sqrt2b

5a^2b^3 sqrt2b

5a^3b^3

3. What is the simplest form of the expression? sqrt 2-sqrt 6/sqrt 2+sqrt 6

8-4sqrt 3/8

8+4sqrt 3/8

2-sqrt 3

-2+sqrt 3

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?