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3 years ago

Please help if you answer and some extra points!

Mathematics

1 answer:

andrey2020 [161]3 years ago

5 0

Answer: if you go to symbolab it will definitely help you and yes i know i did not help whatsoever but just try it if not im sorry

Step-by-step explanation:

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This is a standard deviation contest. You must choose four numbers from the whole numbers 0 to 10 , with repeats allowed. (a) Ch

irina [24]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following instructions :

Choose 4 numbers from the whole numbers 0 - 10

Note : Repetition is allowed

Choose 4 numbers with the smallest possible standard deviation.

The smallest possible value of standard deviation obtainable is 0;

Hence in other to obtain a standard deviation value of 0, then;

The mean squared deviation value must be zero (0)

Σ(X - mean)^2 = 0

To achieve this, the values of X and the mean must be the same.

Hence all 4 numbers (X) must be the same in other to have a mean value which is equal to X

For instance :

If X = 3, 3, 3, 3 (since Repetition is allowed)

Man value = (3+ 3+ 3+ 3) / 4 = 12 / 4 = 3

Σ(3 - 3)² = 0 for all values of x

√Σ(x - mean)² / n = 0 ; if all values of x are the Same

n = Number of observations

A possible list of values is (3,3,3,3)

4 0

2 years ago

Let f(x)=3x2-2 wrote a function g whose graph is a reflection in the y axis of the graph of f

lorasvet [3.4K]

9514 1404 393

Answer:

g(x) = 3x^2 -2

Step-by-step explanation:

Reflection in the y-axis replaces x with -x.

g(x) = f(-x) = 3(-x)^2 -2

g(x) = 3x^2 -2

_____

The given function is symmetrical about the y-axis, so its reflection is itself.

6 0

2 years ago

Robert borrowed $750 from his parents. He promised to repay the loan by giving his parents at least $67 from his paycheck each w

Luda [366]

To answer this question we can propose the following equation:

$d=750 -x(67)$

Where:

x is the number of weeks elapsed.

d is the debt depending on the weeks.

Robert promised to pay at least $ 67 each week.

Therefore, after 5 weeks the debt of rober should be:

$d\leq750-5*67$

$d\leq415$

Then scenario A) is possible because $150$ .

After 6 weeks:

$d\leq750-6*67$

$d\leq348$

Then scenario B) is possible because $200$ .

After 7 weeks

$d\leq750-7*67$

$d\leq281$

Then scenario C) is possible because $250$ .

After 8 weeks

$d\leq750-8*67$

$d\leq214$

So scenario D) is NOT possible because $300>214$

Finally the correct answer is option D.

3 0

2 years ago

Can someone please figure this out for me because I don't understand it.

lisabon 2012 [21]

The answer would be 'b'
Now, here Luke walks total 2¼ miles but his friend's home is ¼ mile. So, number of trips he makes = Total miles walked ÷ Distance to his friend's home
= 2¼ ÷ ¼ = 9

8 0

3 years ago

..........................answer

Akimi4 [234]

Well it’s simply the answer

8 0

2 years ago

Read 2 more answers