For the function f(x) = –2(x + 3)2 − 1, identify the vertex, domain, and range.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.