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tankabanditka [31]
3 years ago
13

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
Leona [35]3 years ago
6 0

Answer:

1 and 4 are correct. 2 and 3 are not.

Step-by-step explanation:

1.

When x = 0 where does the horse start?

y = 1.5*sin(0 + 0.5)*2*pi + 1.5

y = 1.5*sin(0.5*2pi) + 1.5

y = 1.5*sin(pi) + 1.5 But sin pi = 0

y = 0 + 1.5 So the horse is starting at the midpoint of it's travel.

2.

This one is a trick question. You can reason it without exact answers. At some point the sin(x + 0.5)*2pi will equal 1. When it does 1.5 * 1 + 1.5 = 3.0 At some other point sin(x + 0.5)*2pi = -1. When that happens the whole thing goes to 0. So the total of the distance traveled is 6 not three.

3.

You can figure this one out by letting x = 0.01 When it does then the value of the function is

y = 1.5*sin [(0.01 + 0.5)*2pi] + 1.5

y = 1.5*sin(0.51*2*pi) + 1.5

y = 1.5*sin(3.204424) + 1.5

y = 1.5*(- .0623) + 1.5

y = -0.9418 + 1.5

y = 1.4058 so it is going downward The value is getting smaller.

4.

The horse starts out in the middle of the pole. What  does x need to equal so that x + 0.5 = 1 ? And why 1. The answer to why 1 is that then the sine function will equal sin(2*pi)

That happens when x = 0.5 which is 1/2 a minute. If it takes 1/2 a minute to execute 1 complete cycle, then in 5 minutes the cycle will be executed 10 times. This one is correct.


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3 years ago
How long Will it take​
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6 0
3 years ago
Read 2 more answers
Y={1 if x is rational 0 if x is irrational<br><br> How would you describe it's graph?
Setler [38]

The set of rational plus irrational numbers equals ALL REAL NUMBERS


Yes, it is a function because every x-value maps into only one y-value. In other words, because rational and irrational are mutually exclusive, x does not map into both 0 and 1


Domain is all real numbers.


Range is 0 or 1


y-intercept happens when x=0, so that is a rational number and y = 1


There are an infinite number of x-intercepts. Every irrational number is an x-intercept


Neither even or odd because it is not symmetric with either the y-axis or the origin.


The graph jumps between y=0 and y=1


Hope that helps Answer:


Step-by-step explanation:


6 0
3 years ago
Enter decimal numbers in the boxes to complete the ordered pair that locates point Q on the coordinate plane.
stiv31 [10]

Answer:

I know for sure that it is 1.5, -1.5

3 0
2 years ago
If cos 60° = 1/2 and sin 60º = root 3/2 find cos 240° and sin 240".
Vesnalui [34]

Answer:

cos 240 deg = -1/2   and   sin 240 = - root(3)/2

Step-by-step explanation:

if cos 60° = 1/2 and sin 60º = root 3/2 find cos 240° and sin 240".

we  know that  cos 240 =   cos  (60 + 180) =  - cos 60 =  - 1/2

cosine is negative when the angle is in the 3rd quadrant

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sine is also negative in the 3rd quadrant.

7 0
2 years ago
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