the number of minutes spent studing are 60 70 45 60 80 35 45 find the measure of center that best represents the data justify your selection and then find the measure of center
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To find the mean of the data you would add all of the numbers up and divide by the total amount of numbers you added.
60+70+45+60+80+35+45
=395
395/7
=56.4285714286
The median would be the number in the middle when the numbers are ordered.
35 45 45 60 60 70 80
The mode would be the number that occurss most frequently.
Since 45 and 60 both appear twice, you take the mean of the two, which is 52.5
The mean would be the sum of all the numbers divided by the amount of numbers.
60+70+45+60+80+35+45 = 395/7 ≈ 56.43
You could really justify any of these, but typically you would use the mean in this case because there are no outliers.
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9.The expression x(x+4)-4(x+4) is equivalent to each of the following EXCEPT which choice?(1) x²-16(2) (x+4)(x-4)(3) x(x-4) +4(x-4)(4) x²-8
-2x-3=-4x+3What is X?
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So, f(-3)=-2.
And also, f(-1)=f(4)= -2, and so on.
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The y answers would be 11, 8, 5, 2, -1.
To find these parts of the table, we simply put the x value in for x and solve for y. The first two are done for you below.
WHEN x = -2
y = -3x + 5
y = -3(-2) + 5
y = 6 + 5
y = 11
WHEN x = -1
y = -3x + 5
y = -3(-1) + 5
y = 3 + 5
y = 8
-3(-2) +5=11
-3(-1) +5=8
-3(0) +5=5
-3(1) +5=2
-3(2) +5=-1
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Therefore this is closest to 1/2
0.67 is closer to 1/2 as 17<25
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Answer:
x=6
Solution,
hopethishelps..
Goodluck on your assignment...
Answer:
X = 6
Step-by-step explanation:
Cross Multiplication
We can go about this 1 of 2 ways we can either cross multiply or divide across the numerators and denominators. Let's cross multiply. We would 4*9 = 6x. Which would simplify down to 36 = 6x. We would then divide the 6 on each sides of the equation to get 6 = X.
Dividing Across
The other way we can go about it is by seeing what 4 had to be multiplied by to get to 6. We do this by dividing 6 by for which gets us 3/2 or 1.5. Now that we know this we would then divide 9 by 3/2 or 1.5 to get the answer of 6.
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Answer:
Identify the Problem. Begin by determining the scenario the problem wants you to solve. ...
Gather Information. Create a table, list, graph or chart that outlines the information you know, and leave blanks for any information you don't yet know. ...
Create an Equation. ...
Solve the Problem. ...
Verify the Answer.