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Ilya [14]
2 years ago
14

If PQ = 3, QR = 2x, and PR = 3x, what is QR?

Mathematics
1 answer:
aniked [119]2 years ago
7 0

Answer:

6

Step-by-step explanation:

It is ALWAYS helpful to sketch the appropriate figure.

That will make clear that 3x = x+4, by the definition of midpoint.

Then you solve the equation and you get x=2, so that PQ = 6.

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Expand and simplify x(x + 1)(x + 2)
zimovet [89]

Answer:

x^3 + 3x^2 + 2x

Step-by-step explanation:

x(x^2 + x + 2x + 2)

x ( x^2 + 3x + 2)

x^3 + 3x^2 + 2x

6 0
3 years ago
The square of a number is equal to 17 times that number. What is the number?​
Alborosie

Answer:

17

Step-by-step explanation:

If you think about it, 17^{2} \\ is 17×17

Hope this helps!

8 0
2 years ago
In the xy, y-plane, the parabola with equation y = ( x− 11)^2y=(x−11) 2 y, equals, (, x, −, 11, ), squaredintersects the line wi
IRINA_888 [86]

Answer:

10 units

Step-by-step explanation:

Allow me to revise your question for a better understanding.

<em>"In the xy-plane, the parabola with equation y = (x − 11) ² intersects the line with equation y = 25 at two points, A and B. What is the length of AB"  </em>

Here is my answer

Because the  parabola intersects the line with equation y = 25  Substituting y = 25 in the equation of the parabola y = (x - 11)², we get

25 = (x - 11)²

<=>x - 11 = ± 5  

<=> \left \{ {{x=6} \atop {x=16}} \right.

Thus A(16, 25) and B(6, 25) are the points of intersection of the given parabola and the given line.

So the length of AB = √[(16 - 6)² + (25 - 25)²]

= √100 = 10 units

5 0
3 years ago
Read 2 more answers
What is the distance between the points (7 , 31) and (7 , 19) in the coordinate plane?
Tresset [83]

12

.........................

8 0
2 years ago
Find the volume, in cm?, of a right circular cylinder with radius 10 cm and height 14 cm.
Rama09 [41]
C is the best answer
5 0
2 years ago
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