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AlladinOne [14]
3 years ago
6

Use the table to make a scatter plot of the data. Draw a trend line and write its equation. Predict the revenue at US theme park

s in 2012.
(I already made the graph)

1. Suppose you used a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is –0.025.

2. How confident can you be that your predicted value will be reasonably close to the actual value? How would you know?

Mathematics
1 answer:
Over [174]3 years ago
4 0
I'm sorry! i really wish i could help you out more on this one. personally, i'm pretty confused myself. i think the data should have more years because i'm not sure how you're supposed to give a reasonably close predicted value when it's so far apart. your graph looks really good though other than the trend line should be straight across the points i believe. i could try to link a photo if you're not sure of what i'm talking about. i'll keep looking at this one though and let you know if i figure anything out.
You might be interested in
Find the slope, distance and midpoint between
Dovator [93]

Answer:

Slope- 4

Distance- 12.4

Midpoint- (6,8)

Step-by-step explanation:

Slope- \frac{y2-y1}{x2-x1}

\frac{2-14}{4-7} =\frac{-12}{-3}=4

Distance- d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}

d = \sqrt{(4 - 7)^2 + (2-14)^2}

d = \sqrt{-3^2 + -12^2}d = \sqrt{144+9}=\sqrt{153}

\sqrt{153} = 12.4

Midpoint- \frac{x1+x2}{2} ,\frac{y1+y2}{2}

\frac{7+4}{2} =\frac{12}{2} = 6=x

\frac{14+2}{2} = \frac{16}{2} = 8 = y

(6,8)

6 0
3 years ago
What are the solutions of the equation x4 95x2 â€"" 500 = 0? Use factoring to solve.
liq [111]

All the values of the <em>x</em> <em> </em>for the given function are \sqrt{5},-\sqrt{5}, 10i and -10i.

Given-

Given function is,

x^{4}+95x^2-500=0

Rewrite the equation,

(x^2)^2+95x^2-500=0

Let <em>u </em>in place of x^2 and rewrite the equation in the form of u,

u^2+95u-500=0

Break the 95 in factors and rewrite the equation,

u^2+100u-5u-500=0

u(u+100)-5(u+100)=0

(u+100)(u-5)=0

Replace the value of u with x^2,

(x^2+100)(x^2-5)=0

It is known that If any individual factor on the left side of the equation is equal to zero then the entire expression will be equal to zero. therefore we get,

x^2-5=0

further, solve it,

x^2=5

x=\sqrt{5},-\sqrt{5}

And another factor is

x^2+100=0

x^2=-100

x=10i,-10i

Hence, all the values of the <em>x </em>for the given function are \sqrt{5},-\sqrt{5},  10i , and  -10i.

For more about the factorization, follow the link below-

brainly.com/question/6810544

5 0
3 years ago
You paint a border around the top of the walls in your room. What angle does X repeat the pattern? 154
Grace [21]

What does 154 mean in your question?

I assume your room is a square. If so, each corner of the room has a 90 degree angle for a total of 360 degrees.

The angle that is repeated, I assumed based on your obscure question, is 90 degrees.

So, x = 90 degrees.

6 0
4 years ago
PLEASE HELP ME PRETTY PLEASE
Mkey [24]
If the tire is too wide it would have a small chassis so it won't hit the internal fender. but if it was too thin it would have a bigger chassis and it would twist faster and more. Hope I helped :3
7 0
4 years ago
What is the solution to this equation? 3(d+2)−12=d−2
alekssr [168]
3(d+2)-12 = d-2
3d +6 -12 = d - 2
3d-d = 12 - 6 - 2

2d = 4
d = 2
3 0
3 years ago
Read 2 more answers
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