Answer:
it is because 20 + 20 is 40 and then 40 - 20 = 20
A. There is a positive correlation between the temperature and the amount of ice cream sold. This means that as the temperature increases the amount of ice cream also increases.
B. For the best fit you must calculate the slope between two points that are more-or-less representative of the entire graph. In this case it seems to have already done this with certain points so if you take the points (15,35) and (0,5) you can calculate the slope between these two points which is m=(35-5)/(15-0)=30/15=2. So the best fit slope for this particular case would be two and you would just draw a line through the graph at approximately the middle of the dots to best represent all of the data.
and the y-intercept is 5 so the approximate equation for the graph would be y=2x+5
Mia’s first error was " she forgot to multiply π by (17.5)²(47) "
Step-by-step explanation:
The formula of the volume of a cylinder is V = π r² h, where
- r is the radius of the base of the cylinder
- h is the height of the cylinder
∵ The diameter of the base of the cylinder is 35 meters
∵ The radius = 
× diameter
∴ The radius = × 35 = 17.5 meters
∴ r = 17.5
∵ The height of the cylinder = 47 meters
∴ h = 47
- Substitute r and h in the formula of the volume
∴ V = π (17.5)²(47)
∵ Mai's first step is V = (17.5)²(47)
- She forgot to put π
∴ Her first error is she forgot to multiply π by (17.5)²(47)
Mia’s first error was " she forgot to multiply π by (17.5)²(47) "
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You can learn more about the volume in brainly.com/question/6443737
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The value of y is -8 if the x -24 and y varies directly with x, and If y = 4 when x = 12.
<h3>What is a proportional relationship?</h3>
It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.
The question is incomplete.
The complete question is:
If y varies directly with x, and If y = 4 when x = 12, how do you find y when x = -24?
y ∝ x (given)
y = kx
k is the constant of proportionality.
4 = 12k (y = 4, and x = 12)
k = 1/3
y = x/3
Plug x = -24
y = -24/3
y = -8
Thus, the value of y is -8 if the x -24 and y varies directly with x, and If y = 4 when x = 12.
Learn more about the proportional here:
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Answer:
2:1 or 16:8
Step-by-step explanation:
