The correct answer is 7x^2
Answer:
3x
Step-by-step explanation:
because if f is -5, -5=-3x-4, -5+4, -1=-3 divide and get 3=x
Answer:
cluster sampling
Step-by-step explanation:
In cluster sampling, the population is divided into groups or clusters (in this case, students divided in the 20 classes), the researcher then randomly selects a subset of clusters and samples the individuals within those clusters. In this example, since students from 5 out of 20 classes are sampled, the sampling process can be characterized as cluster sampling.
Answer:
4th option.
Step-by-step explanation:
Put x as -1 and solve.
2(-1)² ÷ (-1) + 3
2(1) ÷ 2
= 1
The fourth rational expression has a value of 1 when x = -1.