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OverLord2011 [107]
3 years ago
5

Construct a circle through points X, Y, and Z.

Mathematics
1 answer:
Olin [163]3 years ago
7 0
How does that move? Does it stay out or can it move? If it can you can just create one with the outer line touching it..? I don’t know this :’)
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A submarine cruises underwater at 20 km/h and on
Darina [25.2K]

Answer:

System of equations:

20x + 30y = 650

x + y = 25

Time underwater = 10 hours

Time at the surface = 15 hours

Step-by-step explanation:

Let x = time underwater at 20 km/h.

Let y = time on the surface at 30 km/h.

speed = distance/time

distance = speed * time

distance underwater: 20x

distance on the surface: 30y

total distance: 650

20x + 30y = 650

total time: x + y

total time: 25

x + y = 25

20x + 30y = 650

x + y = 25

20x + 30y = 650

-20x - 20y = -500

--------------------------------

          10y = 150

              y = 15

x + y = 25

x + 15 = 25

x = 10

4 0
3 years ago
Question 4<br> Find the slope and y-intercept in the table. Simplify as needed.
Agata [3.3K]

Answer:

Y - intercept is 1 , slope is 3

4 0
2 years ago
The graph shows a scuba diver's ascent over time. Use the graph to find the slope of the line. Complete the description of what
Burka [1]

Answer:

The slope of the line is <u>.25</u> This indicates that the diver <u>ascends</u> at a rate of <u>.25 </u>m/s.

Step-by-step explanation:

0 - (-10)

------------  == 10/40 == .25

40 - 0

6 0
3 years ago
I really need help!!!!!!​
ExtremeBDS [4]

Answer:

y = 1.50x + 4 ;

Step-by-step explanation:

Given that bike rental cost $4 plus $1.50 per hour

From the information given, the change in y per unit change in x is the value of the slope ;

Therefore, Given that total cost = y and x) number of hours

Change in cost per change in number of hours) 1.50 = slope ; intercept = constant = $4

The equation, in slope intercept form :

y = mx + c

y = 1.50x + 4

6 0
2 years ago
A horizontal line on a distance-time graph indicates ________.
xxMikexx [17]
A distance-time graph tells us how far an object has moved with time. The steeper the graph, the faster the motion. A horizontal line means the object is not changing its position - it is not moving, it is at rest. A downward sloping line means the object is returning to the start.
4 0
3 years ago
Read 2 more answers
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