If you reflect f(x) = 2x about the y-axis, you get a graph g(x) = -2x.
There are 9 months of pregnancy. Each trimester lasts for 3 months. So C) 4th month would be your answer.
Answer:
antibiotics are useless against viral infections this is because viruses are so simple that they use their host cells to perform their activities for them. so antiviral drugs work differently to antibiotics by interfering with the viral enzymes instead
As for earthquakes, seismograph can be used to monitor tremor activity of volcanoes.
It is very important to predict when a volcano is going to erupt, because it is extremely dangerous if there are people living near that volcano. People need to be informed if they need to evacuate in case of volcano eruption, and seismographs are used to check the tremor.