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Yakvenalex [24]
3 years ago
9

Plz help me on this it's for corrections

Mathematics
2 answers:
xenn [34]3 years ago
8 0
It is twice as likely to be red as it is to be blue
wolverine [178]3 years ago
7 0
The answer is F because its would be red and blue
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The table below shows the radius y, in inches, created by growing algae in x days:
Pie
Part A. The correlation coefficient, denotes as R^2, is a measure of how well does the data point correlate with a given model or equation. The closer the R^2 is to 1, the better is the correlation. However, R2=1 is ideal for scatter plots. Using the MS Excel to execute the regression, the data points was fitted to a quadratic equation. The R2=0.9983. From the choices, the closest answer would be 1. But as stated previously, a value of 1 is ideal only. Therefore, the answer is most likely 0.94,


Part B. To determine the slope, the equation would be Δy/Δx. For x=5 and x=10, the slope would be

Slope = (3-1)/(10-5) = 2/5 or 0.4. This is the instantaneous rate of change at the interval of 5 to 10 days.

Part C. The difference between causation and correlation is identifiable if you know the direct relationship between the variables. In this case, the increase in radius is not caused by time. The problem does not state so. But we know from the trend shown on a graph, that there is a correlation between these variables. Therefore, the answer is correlation.

5 0
3 years ago
Which inequality describes the graph?
Phoenix [80]

Answer:

-4x < 20

Step-by-step explanation:

-4x < 20\\x > -5

*remember when you're dividing by a negative you have to flip the sign

8 0
3 years ago
Write a quadratic function with zeroes 0 and 8.
Jlenok [28]

Answer:

x^2-8x=0

Step-by-step explanation:

the quadratic function should be as follows:

x^2-8x=0

Now let's confirm that the zeros of the function are 0 and 8

x^2-8x=0=x(x-8)=0

Therefore we can see that if x = 0

0^2*8*0=0\\0=0

the equation is fulfilled

And we also have (x-8)

for this expresion to be equal to zero:

x-8=0\\x=8

thus, if x = 8

8^2-8*8=0\\64-64=0\\0=0

the equation is also fulfilled

The zeros of the quadratic function x^2-8x=0 are 0 and 8.

3 0
3 years ago
Find the height of a square pyramid. The volume is 24x^2 - 20x. The base is (6x - 5)(3x)
erma4kov [3.2K]
The answer is the atombic number is9573
3 0
4 years ago
Find the student’s error in solving the following inequality.
hram777 [196]

Step-by-step explanation:

When dividing both sides of an equality by a negative number, the sign should be changed:

25 < -5x

-5 > x

x < -5

6 0
4 years ago
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