90,88,88,87,84,95,90,80,98,and 100 (A) find the mean of these numbers
(B) find the median of these numbers
Answers
Hello There!
The mean is the average of numbers in a set.
STEP 1: Add all the numbers in the set
STEP 2: Divide the sum by the number of digits you added
In this case, we will add all the numbers up so 90+88+88+87+84+95+90+80+98+100 = 900
Next, we will divide 900 by how many digits we added so we would divide 900 by 10 because there are 10 numbers in this set.
Finally, we will get a quotient of 90.
The Mean Of This Set of Numbers Is 90
The median is the middle number when all the numbers are in order from least to greatest.
STEP 1: Order the numbers from least to greatest
STEP 2: Cross out each number on the left and right until you get to the middle number
In this case, we would order the numbers from least to greatest so...
80,84,87,88,88,90,90,95,98,100
Next, we cross out one number on the left and one number on the right until we reach our 1 number in the middle unless there are two.
Finally, we come across two numbers in the middle which means that we need to find the mean of 88 and 90 so when we add them up, we get a sum of 178 and then we divide by 2 and get a quotient of 89
The Median Of This Set Is 89
80,84,87,88,88,90,90,95,98,100
then cross them out Start with left then go the right and so on...
until you get 1 number in the middle left (Since theirs 2 numbers in the middle add them up and divide by two ) 88+90=178 178/2=89
Median = 89
Now in Order to find the mean add up all the numbers and divide by however many numbers their are
You should get 900 then divide by 10 because their were 10 numbers
So Median=89 & Mean=90
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A. y=-2x^2-8x
B. y=2(x+6)(x-2)
C. y=x^2-8x+16
D. y=2(x+4)^2-2
Use the equations to complete the following statements.
Equation (A,B,C, or D) reveals its extreme value without needing to be altered. The extreme value of this equation has a (minimum or maximum) at the point (-4,-3,0 or 2 , -32,-8,8, or -2 ).
Answers
From each of the given equations, the option which gives a squared expression for the variable with x ; hence does not need any further mathematical calculation in other to determine it's extremes is the expression y = 2(x+4)² - 2 ; option (D) with minimum at the points (-4, - 2)
The extreme vlaue of an expression has a minimum at ;
Obtain the value of x when (x + 4) = 0:
- x + 4 = 0
x = - 4
Substitute -4into the equation :
y = 2(-4 + 4)² - 2
2(0) - 2 = - 2
Therefore, the equation has its extremesat (-4,-2)
Learn more : brainly.com/question/2203574
Answer:
Step-by-step explanation:
Answers
The slope of the line passing through the pairs of points (0, 7), and (0, −8) is not defined.
Here,
We have to find the slope of the line passing through the pairs of points (0, 7), and (0, −8).
What is slope of the line?
A measure of its steepness is called slope of line.
Now,
The points are (0, 7) and (0, -8)
Hence, Slope of the line is calculate as;
Which is undefined.
Hence, The slope of the line passing through the pairs of points (0, 7), and (0, −8) is not defined.
Learn more about the slope visit:
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Slope = change in y /change in x
(0, 7), (0, −8)
Slope "m"= -8-7/0-0
M= -15/0
M= undefined
Answers
xy=5
Answers
So here you have xy = 5.
Divide both sides by x, and you have y = 5/x.
So it is not direct variable, it is inverse variation.
indirect variation is a=xy where when x goes down y goes up so less say a=2 then if x=2 then y=1 if x=1 then y=2
for number 9. it shows direct variation because when x goes up, y also must go up
Answers
Correct option d)0.61
Step-by-step explanation:
Here we have a number line from 0 to 1 . With every point at a equal distance of 0.10 from each other . Let's first mark the decimal 0.74 in number line . Now, Lets check one by one that which decimal is less than 0.74 . Remember , decimal will be less than 0.74 if point lies to the left side of 0.74.
a)0.95:
Decimal 0.95 lies to right side of 0.74 , So this decimal is not smaller than 0.74
b)0.88:
Decimal 0.88 lies to right side of 0.74 , So this decimal is not smaller than 0.74
c)0.79:
Decimal 0.79 lies to right side of 0.74 , So this decimal is not smaller than 0.74
d)0.61:
Decimal 0.61 lies to left side of 0.74 , So this decimal is smaller than 0.74
Answers
the anwser should be 1400