The answer is localization.
Answer:
x = 9/25, y = 7/25, z = 4/25
Explanation:
step 1: solve for y in first equation to use substitution
y = -2x + 1
step 2: insert into second equation to eliminate y variable and work with two variables
3(-2x+1) + z = 1 (now distribute)
-6x + 3 + z = 1 (bring over the -3)
-6x + z = -2
step 3: now left with -6x + z = -2 and x + 4z = 1, so eliminate z
-6x + z = -2 (multiply by 4)
4(-6x + z = -2)
-24x + 4z = -8
-
x + 4z = 1 (brought down third equation)
-25x = -9
x = 9/25
then just plug in x into the third equation to solve for z, followed by plugging it into the first equation to solve for y. you should end with y = 7/25 and z = 4/25
Jeena would possibly be interested in the students of the high school that she attends, as mentioned in the passage.
The sampling method that she could opt for is:
Random sampling method.
<u>Explanation:</u>
Jeena is going to be collecting data from a minimum of 32 students, as is the minimum number of samples required to conduct an experimental study.
Since her claim is that the students in her high school spend more than 94 minutes per day in texting, she could narrow down the age range that she would want to study to claim her study.
The average age for any high school student is 14 to 18 years; therefore she could narrow it down to:
14-to-16 years or
16-to-18 years.
Such a bifurcation would make her study more focused and easier to calculate the findings on further stages.
Regarding the sampling method, " simple random sampling" would work best that would satisfy the conditions needed for inference to the population. Random sampling is an unconditioned selection of participants within the focused group.
Hence, these could be the steps that she could follow to start her study.
Answer:
1.Only recently have scientists been able to measure the amount of CO₂ in the atmosphere and how quickly the rate is increasing. Up until 1950 the levels of atmospheric CO2 were pretty steady at 300-‐310 ppm (that's parts per million out of all the molecules in the air).
2.Levels of carbon dioxide in the atmosphere rise and fall each year as plants, through photosynthesis and respiration, take up the gas in spring and summer, and release it in fall and winter. Now the range of that cycle is expanding as more carbon dioxide is emitted from burning fossil fuels and other human activities.
Explanation:
mark me brainliest please
Francis Sumner is considered to be the father of African American physchology.