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navik [9.2K]
3 years ago
9

7. Point D is reflected across the x-axis. What are the coordinates of its image?

Mathematics
1 answer:
Talja [164]3 years ago
4 0
The answer would be (3,1)
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Chris Johnson ran the 40- yard dash in 4.24 seconds. What is the rate of speed? Round any answer to the nearest hundredth
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Distance divided by time is speed. To find the rate of speed, divide 40 yards by 4.24 seconds which is approximately 9.43 yards per second. 9.43 yards per second is the rate of speed.
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Dennis_Churaev [7]

24+28.5−8=44.5 ft^2

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Multiple choice: 
Paha777 [63]
In the given you wrote -2, whereas it should be -2i

z = a + bi and in trigo form | z |.(cos Ф + i.sin Ф).
z = 0 -2i → | z |.(cos Ф + i.sin Ф)
Now let's calculate z:
 
z² = a²+b² → z² = 0² (-2.i)² → z = -2(i)² →z= -2(-1) → z = |2|
tan Ф = b/a = -2/0 → tan Ф → - ∞ ↔ Ф = -90° or Ф = 270°
 then the - 2 I ↔ |2|(cos 270° + i.sin 270°)

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3 years ago
PLEASE HELP FAST!!! AND EXPLAIN YOUR WORK
fomenos
The drummers final position would be
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ValentinkaMS [17]

Answer:

area of a 1st

Step-by-step explanation:

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