Escreva no caderno dois exemplos de números reais que obedecem a cada uma das condições
a) números irracionais maiores que 2,5 e menores que 3.
b) números racionais maiores que -7/8 e menores que -3/4

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

What is the solution of sqrt x+2-15=-3

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?