Explanation:(a) Was this an observational study or an experiment? Explain your reasoning. Experiment, because certain variables were controlled (he sets the screen brightness to low and then starts a movie) to determine if iPhones last longer if the screen brightness is set to low, and it proves the cause and effect relationship.
(b) What is the explanatory variable and the response variable? Response Variable- To determine if iPhones last longer if the screen brightness is set to low Explanatory variable- he sets the screen brightness of 10 of the iPhones to high and starts a movie, then the other 10 to low and starts a movie.
(c) Was a random sample used to collect the data? Yes- “he selects a random sample of 20 brand new iPhones”
Answer: The 3 in the new number is in the hundreds place
Explanation:
Answer:
y= 155.45 cm
Explanation:
To solve this, we will need to use the Law of Sines
This states that:
Firstly, we need to find the sin of angle y. As this is a 30-60-90 right triangle, we know that the angle must be 60 degrees
Now that we have side x, the angle X, and the angle Y, we can solve for the side y using the Law of Sines
Lets plug in our known values into the equation
Next we can solve for y
When plugged into a calculator, you get the value of 155.45 cm for side y
Answer:
The current population of India is 1,370,084,744, which is equivalent to 17.7% of the total world population.
The Taj Mahal was built in 1653 in honor of Mumtaz Mahal, the queen who died at age 38 giving birth to her 14th child. We can see that even then women gave birth to many children, which is important when it comes to the issue of overpopulation.
The death of the queen can be seen as the symbol of issues awaiting India if its population keeps growing. Some of those problems are already very noticeable. For example, many people are unemployed, development of infrastructure is not keeping up with the growth of population, which is negatively affecting transportation, communication, education, healthcare, and housing, resources are being over-exploited, costs of production have increased, and equal distribution of income has become impossible. If the population keeps increasing, which is expected, these problems will just keep getting worse.
