We first need to write the function in standard form.
y = -x^2 - 7x + 18
To find the axis of symmetry, we do -b/2a
The a and b are the coefficients of the x values.
So a would be -1 since -x is same as -1x
Follow that, b would be -7.
Then just plug the values in. - (-7)/2(-1) = -7/2
The axis of symmetry is -7/2
Answer:
Water condenses to form clouds.
Explanation:
Water condenses to form clouds-The process of condensation is when water changes to liquid. This can be achieved by either the extreme cooling of air or when the air is saturated with water vapor, that it becomes impossible to hold any more water. When the moist compacts , this brings about an outflow of energy.This energy makes the environment warm up amounting to the multiplicity of air in the atmosphere above. The above explanation results in instability of the atmosphere and cumulonimbus vapors are formed. These vapors aid lightening when its the period of thunderstorm.
I would say the one least likely to cause outdoor environment contamination is going to be D, fertilizers.
Fertilizers are meant to help the environment, not damage it.
Answer: confirm Supreme Court judges
conduct impeachment trials
Explanation:
The powers that are exclusive to the Senate are to confirm Supreme Court judges and also to conduct impeachment trials.
The Senate was created in order to protect the rights of the people living in the country and it also helps in checking the activities of the government. When Supreme Court judges are appointed, the Senate helps to confirm them.
