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OLEGan [10]
2 years ago
5

Which expression is equivalent to r^9/r^3? O r^3 O r^6 O r^12 O r^27

Mathematics
2 answers:
valkas [14]2 years ago
5 0

Answer:

r^12 no r^6

Step-by-step explanation:

I was wrong it is r^6 r−9(−3) r−9+3=r−6

  • r-6 becomes 1 over r6

Rus_ich [418]2 years ago
5 0

Answer:

{r}^{6}

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80 because 800= 10 x 8
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3 years ago
A ship leaves port and travels due west for 30 knots, then changes course to S 30° W and travels 50 more knots. Find the bearing
leva [86]

Answer:

  232°

Step-by-step explanation:

There are a couple of ways to find the desired direction. Perhaps the most straightforward is to add up the coordinates of the travel vectors.

  30∠270° +50∠210° = 30(cos(270°), sin(270°)) +50(cos(210°), sin(210°))

  = (0, -30) +(-43.301, -25) = (-43.301, -55)

Then the angle from port is ...

  arctan(-55/-43.301) ≈ 231.79° . . . . . . . 3rd quadrant angle

The bearing of the ship from port is about 232°.

_____

<em>Comment on the problem statement</em>

The term "knot" is conventionally used to indicate a measure of speed (nautical mile per hour), not distance. It is derived from the use of a knotted rope to estimate speed. Knots on the rope were typically 47 ft 3 inches apart. As a measure of distance 30 knots is about 1417.5 feet.

5 0
3 years ago
What are the answers for both of these what are zeros<br> help
Archy [21]
Graph 5- e)
graph 6- b)
4 0
3 years ago
Please Hurry! Due by tonight!
vlabodo [156]

Step-by-step explanation:

the y-intercept is 1 because it's on the y(axis). the line from 1 goes down 1 over three so the slope is 1/3.

your equation would be y=1/3x+1

6 0
3 years ago
It costs the Quality company $.14 per mile to run its van. On Monday the van traveled 87.6 miles. How much did it cost to run th
Dafna1 [17]

Answer:

12.264

Step-by-step explanation:

* per would be saying the number of miles the van is running that day

.14 x 87.6

= 12.264

7 0
3 years ago
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