A+b+c=180
subsittute
x+25+x-5+c=180
2x+20+c=180
minus 20 both sides
2x+c=160
mius 2x
c=160-2x
Answer:
Perimeter is 17.07
Step-by-step explanation:
We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.
We need to use the Pythagorean theorem to get the length of DE.

So the perimeter of DEF is 5 + 5 + 7.07 = 17.07
Answer:
The correct option is A.
Step-by-step explanation:
If a line passes through two points
and
, then the equation of line is

Let y be the profit (in millions) after x years.
From the given graph it is clear that the line passes through the point (1,-100).
The company paid for these costs and made combined profits of $80 million after 4 years. It means the graph passes through the point (4,80).
The line passes through (1,-100) and (4,80). So, the equation of line is




Subtract 100 from both sides.


The function form is

Therefore, the correct option is A.
Stop and Shop has the better deal, as it is 0.24 cents for each apple if you divide 0.96 by 4, while Path Mark is 0.25 cents.
Well,
Emily received $40.00 and then withdrew $40.00. The final amount would be zero.
Jacoby climbed 782 feet to get to his campsite, and then descended 782 feet to get back to his car. His final change is zero.
The Eagles mad two points, but then the Bulldogs evened it out with another two points. The difference between the two scores would be the same.
Marcus ends up going down more than he goes up, so this is not a correct option.
The Ravens scored two points, but at the end the Raiders scored an additional 5 points, which set both teams to the same score.
Since there are an equal number of protons and electrons, and the protons have the same (but opposite) amount of charge as the electrons, the charges cancel each other out, leaving the atom with a neutral overall charge (0).