Simplify (4x+7)-(-3x-9)+9x-28
1 answer:
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Answer:
Step-by-step explanation:
From the problem statement, we can set up the following two equations:
where is the number of Knicks players, and
is the number of Nets players.
We can substitute the first equation into the second and solve for
Answer: The total number of student in the school = 240.
Step-by-step explanation:
Let x be the total number of students in the school.
Given: 35% of the students at Charles drew middle school are 6th graders.
i.e. Number of sixth graders = 35% of x = 0.35x [35% = 0.35]
Since there are 84 sixth graders in the school,
So
Divide both sides by 0.35, we get
Hence, the total number of student in the school = 240.
Focus of the parabola is (-5,5) and directrix is y = -1.
Let's assume a point (x,y) on parabola.
According to definition of parabola, the distance between point (x,y) and focus (-5,5) would be same as the distance between the point (x,y) and directrix y = -1.
Hence, option D is correct, i.e. f(x) = one twelfth (x + 5)2 + 2.