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Vesna [10]
3 years ago
14

The formula below represents the standard form of a quadratic equation,

Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

b=-a^2-c

Step-by-step explanation:

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What is the sokution of -(x)=-8
7nadin3 [17]

Answer:

x = 8

Step-by-step explanation:

Given

- x = - 8 ( multiply both sides by - 1

- x × - 1 = - 8 × - 1, that is

x = 8

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2 years ago
The dot plot shows how many cats are owned by each person in a neighborhood:
REY [17]

If we plot the data on the graph, we can see that the data is skewed to the right (positive skew) and there is an outlier. In skewed data and presence of outlier, the median is most commonly used measure of central tendency. This is because a positive skew would result in a positive bias to the mean. Meaning that it would be a lot larger than the median and not really representing the actual central tendency. The median however is less affected by the skew and outliers.

Answer: Median, because the data are skewed and there is an outlier

 

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3 0
3 years ago
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If you know the length of the side of the square, how can you figure out the area?
KengaRu [80]

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8 0
3 years ago
How can you tell if two equations for parallel lines or perpendicular lines. please explain?
kicyunya [14]
To find out if they are parallel we need to see if the gradient is the same, to do this we need to get y in terms of x:
assuming the first equation is x+y+7=0
y=-x-7
and
y=x-3
The gradient is the coefficient of x (the number infront of x)
For equation 1 the gradient is -1, and for number 2 it is 1, therefore they are not parallel.
However to check if they are perpendicular we need to see if their gradients multiply to equal -1.
-1*1=-1 therefore they are perpendicular
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3 years ago
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