Which of the following statements describe key features of the graph of f(x) = −x2 − 2x + 3? Select all that apply. Group of answer choices

The vertex is (- 1, 4).

The equation of the axis of symmetry is x = - 1.

The vertex is (- 1, - 4)

The Y-intercept is (0,3

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of