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puteri [66]
3 years ago
12

Reflection over the y-axis of the point (9,-1)(9,−1)

Mathematics
1 answer:
Gelneren [198K]3 years ago
8 0
The new point is (9,1)
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20. In the figure at right, ABDC lies in plane k and AD IDC.
Citrus2011 [14]

The option that's true about the plane illustrated is E. None of these.

<h3>How to illustrate the plane?</h3>

From the information given, it should be noted that DBC isn't an isosceles triangle.

Also, from the figure, one can see that DAB isn't similar to DAC.

Likewise, BD and DC aren't perpendicular.

In conclusion, the correct option is E.

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4 0
2 years ago
if the speed of sound is 344 meters per second, what is the approximate speed of sound, in meters per hour?
choli [55]
Since we already know that the speed of sound is 344m per second, there are 60 seconds in one minute, and there are 60 minutes in one hour, we just multiply 344 by 60, giving us 20,640. Then we multiply 20,640 by 60 to get an answer of 1,238,400 meters per hour.
4 0
3 years ago
Paul has a number of counters two less than seven
valentinak56 [21]
The answer is 5 cause two less then 7 is 5.

4 0
3 years ago
2(x + 4) - 5 = 3x + 3
OverLord2011 [107]

Answer:

x=0

Step-by-step explanation:

2(x+4)- 5 = 3x+3

Distribute

2x+8-5 = 3x+3

Subtract x values

8-5 = x+3

3 = x+3

Final Subtraction

x = 0

3 0
3 years ago
Read 2 more answers
Which expression is equivalent to ? Assume
stepan [7]

Answer:

b/a

Step-by-step explanation:

Given,(b^-2)/a*(b^-3)

or,(b^-2+3)/a

or,b/a

7 0
3 years ago
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