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OlgaM077 [116]
3 years ago
6

Simplify -4+ -3 + 6

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
7 0
Negatives cancel out positives so the +after the 4 changes to a minus and removes the - in the 3 so the equation changes to

-4 - 3 + 6 to make it easier, use the commutative property, 6 - 4 - 3 which equals -1
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How many solutions will this system of equations have? (2 points)
Agata [3.3K]
The answer is infinitely many solutions

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3 0
3 years ago
820 round to the nearest hundred
grandymaker [24]
Hello! Seeings 20 is less than 50, you then need to round down. If its over 50 then you round up! So if you have 14 its rounded to 10. And if you have 16 round it to 20. So 820 is rounded to 800.
4 0
3 years ago
Triangle PQR lies in the xy-plane, and the coordinates of vertex Q are (2, –3). Triangle PQR is rotated 180° clockwise about the
trasher [3.6K]

Answer:

(2,3)

Step-by-step explanation:

We are given that triangle PQR lies in the xy-plane, and coordinates of Q are (2,-3).

Triangle PQR is rotated 180 degrees clockwise about the origin and then reflected across the y-axis to produce triangle P'Q'R',

We have to find the coordinates of Q'.

The coordinates of Q(2,-3).

180 degree clockwise  rotation about the origin  then transformation rule

(x,y)\rightarrow (-x,-y)

The coordinates (2,-3) change into (-2,3) after 180 degree clockwise rotation about origin.

Reflect across y- axis the transformation rule

(x,y)\rightarrow (-x,y)

Therefore, when reflect across y- axis then the coordinates (-2,3) change into (2,3).

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5 0
3 years ago
a diver is 19 meters below the surface of the water use an integer to represent how far the diver will need to travel to reach t
Basile [38]

Answer:

The diver need to travel 19 meter up to reach the surface

Step-by-step explanation:

* Lets explain how to solve the problem

- For any starting point the position at it is zero

- If the moving from the starting point is vertically, then the distance

 below the starting point is negative and above the starting point

 is positive

- If the moving from the starting point is horizontally, then the

 distance left to the starting point is negative and right to the

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* Lets solve the problem

- A diver is 19 meters below the surface of the water

- Assume that the surface of the water is the zero position

∵ The diver is 19 meter below the surface of the water

∴ The diver is at the position -19

- The diver need to travel 19 meters to reach the surface of the water

∵ -19 + 19 = 0

∴ The diver need to travel 19 meter up to reach the surface

8 0
3 years ago
The circle is inscribed in triangle AEC. A circle is inscribed in triangle A E C. Points B, F, and D of the circle are on the si
I am Lyosha [343]

Answer:

EF and ED

CB and CD

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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