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valentina_108 [34]
3 years ago
10

700 students attend Ridgewood Junior High School. 25% of students bring their

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
6 0
175 students brought their lunch to school on thursday
Karolina [17]3 years ago
4 0
25% of 700 is 175.
So the answer would be 175.
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What are the vertex and axis of symmetry of the parabola y = x2 – 16x + 63?
jonny [76]

Answer:

A

Step-by-step explanation:

Remember that the x-value of the vertex when an equation is given in standard form can be found with the equation \frac{-b}{2a}. So, we can take the coefficients from the equation and plug them in.

\frac{-b}{2a} \\\frac{-(-16)}{2(1)}\\\\\frac{16}{2}\\\\8

Now we know that the x-value of the vertex is 8. Next, the equation for the y-value is c-ah^2, where h is the x-value of the vertex (8).

(63)-(1)(8)^2\\63-64\\-1

So the vertex is (8,-1).

Finally, the axis of symmetry is the x-value of the vertex, also called h.

Final answer, vertex: (8,-1) and axis of symmetry: x=8

Hope this helps!

3 0
3 years ago
What is the ordered pair of y=4.5x
garri49 [273]

Answer:(1,1)

Step-by-step explanation:

y=4.5x

x=y/4.5

put value of x

y=4.5(y/4.5)

y=y

5 0
3 years ago
Help! Please show work, and identify the solution or how many solutions there are to the system.
Sveta_85 [38]

Answer:

one solution (-3, -6)

Step-by-step explanation:

the two line cross at the point (-3, -6) and only at that one point so there is only one solution (-3, -6).

4 0
3 years ago
Somebody pls help ASAP!
LenaWriter [7]

Answer:

Perpendicular

Step-by-step explanation:

If you look at the image, it shows a rectangular prism. The line CD is next to the line AD. It is perpendicular because someone could draw a right angle where the lines CD and AD meet.

I Hope That This Helps! :)

6 0
3 years ago
In a pacemaker factory, all pacemakers must go through a rigorous quality assurance check before being shipped. The table shows
Len [333]

Answer:

16.1%

Step-by-step explanation:

5 0
3 years ago
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