What is not equivalent to 2 and 1/10

Vertical angles are opposite angles with the same vertex true or false

Prove that tan-1x + cot-1 (x+1) = tan-1 (1 + x + X^2)

A jeweler bought some necklaces and bracelets for $1,100. the cost of the necklaces was 20% more than the cost of the bracelets. how much did the jeweler pay for A) the necklaces? B) the bracelets?

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $540 per person per day if exactly 20 people sign up for the cruise.

The library at school is organized by fiction and nonfiction books. There are three nonfiction books for every seven fiction books. How many total books are there if the library has 240 nonfiction books

May can swim one lap in 6.089 seconds, and Sarah can swim one lap in 6.098 seconds. Write an equation to compare their speeds.

How do I solve systems of equations using elimination?

Which of the following is a polynomial with roots 2, 3i, and - 3i? A. f (x) = x^3 - 2x^2 + 6x - 9 B. f (x) = x^3 - 6x ^2 + 9x - 18 C. f (x) = x^3 - 6x^2 + 18x - 2 D. f (x) = x^3 + 2x^2 + 9x - 18

The surface area "S" of a cube with side length e is S = 6e^2. Find the side length of a cube with a surface area of 150 cm.

A farmer hears a weather report saying that temperatures will be decreasing approximately 6∘ 6∘ every hour for the next 5 hours. What signed number represents the total change in temperature expected over the next 5 hours