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3241004551 [841]
3 years ago
13

What is the standard variation for this data set 6 4 9 5 5 4 5

Mathematics
1 answer:
inysia [295]3 years ago
6 0
The standard deviation is 1.87

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Part 1: Multiple Choice
Keith_Richards [23]

Option C: (0,125) is the y - intercept.

Explanation:

The given function is f(x)=x^3-5x^2-25x+125

We need to determine the y - intercept.

<u>The value of y - intercept:</u>

The y - intercept is the value of y when x = 0

The y - intercept of the function can be determined by substituting x = 0 in the function.

Hence, let us substitute x = 0 in the function f(x)=x^3-5x^2-25x+125, we have,

f(x)=(0)^3-5(0)^2-25(0)+125

Simplifying the terms, we get;

f(x)=0-5(0)-25(0)+125

f(x)=0-0-0+125

f(x)=125

Thus, the value of y is 125.

Hence, the y - intercept is 125.

Therefore, the coordinates of the y - intercept are (0,125)

Hence, Option C is the correct answer.

7 0
3 years ago
Completing the square:
vichka [17]

Answer:

Step-by-step explanation:

Key to this method is remembering that

(a+b)^2 = a^2 + 2ab + b^2

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.

6/2 = 3, so add 3^2 = 9

x^2+6x+9 = (x+3)^2

So, c=9

Similarly, for the other two,

c = (\frac{-34}{2} )^2 = (-17)^2 = 289

You don't really have to worry about the sign, since squaring will always make it positive

(\frac{25}{13}) ^2 = \frac{625}{169}

7 0
3 years ago
Is {(0,6),(0,-6),(1,5),(1,-5),(7,10)} a function?<br><br> Please help
pishuonlain [190]

Answer: Yes, it is a function

Step-by-step explanation:

7 0
1 year ago
What is the answer to 9(17 - 9) - 2^2/ 2^2
Dmitriy789 [7]
-17 - 24 -(-9) =
-17 - 24 + 9 =
- 41 + 9 =
- 32

Hope this helps
7 0
3 years ago
Read 2 more answers
Tripling the greater of two consecutive even integers given the same result as subtracting 10fromm the lesser even integer. What
Dmitry [639]

The integers are -8 and -6.

To find these, first assume that the first integer is x. Then, because it is an even integer, assume the next is x + 2. Now we can write an equation to solve.

Tripling the greater = subtracting 10 from the lesser

3(x + 2) = x - 10 ----> Distribute the 3

3x + 6 = x - 10 ----> Subtract x from both sides

2x + 6 = -10 ----> Subtract 6 from both sides

2x = -16 ----> Divide both sides by 2

x = -8

Which is the first integer. We then can determine that the second one, which is two higher than the first, would be -6.

3 0
3 years ago
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