Answer:

Step-by-step explanation:
original functions:

Subtract the polynomials:

Distribute the negative sign:

Combine like terms:

Add like terms:

Answer:
Because she is concluding that her class is an accurate representation of the overall school. The sample size in this case is too small and should increase her sample size(the amount of people surveyed) in order to get a better result.
Multiply 15 x 3.14. You'll get 47.1. Thats the area
Answer:
B
Step-by-step explanation:
The answer is b because the domain of anything is always x or on the x axis .
Answer:
Step-by-step explanation:
For example, the atmosphere mixes down into the other spheres and releases precipitates; the hydrosphere overlaps onto land surfaces and water vapor rises up into the atmosphere; the biosphere reaches up into the atmosphere, down into soils and rock, and throughout the oceans, exchanging gases, water and nutrients