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3 years ago

10

SERIOUS ANSWERS ONLY PLZ

1 answer:

statuscvo [17]3 years ago

5 0

Answer:

<u>The standard deviation of the uniform distribution is:</u>

σ=(b−a)/√12

<u>U(3, 12)</u>

σ = (12−3)/√12 = 9/√12 = 2.5981

<u>U(80, 250)</u>

σ = (250−80)/√12 = 170/√12 = 49.0748

<u>U(4, 93)</u>

σ = (93−4)/√12 = 89/√12 = 25.6921

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goldfiish [28.3K]

Answer:

6+x with x equalling the amount of coins bought if that is what you were looking for

Step-by-step explanation:

if you want to make and equation out of this you don't know the amount of coins she bought so you use a variable (x) to replace that unknown number then since it says she bought more she is adding more to her collection which means it would be an addition problem, leaving you with 6+x for your final answer

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3 years ago

Find the indicated limit, if it exists. limit of f of x as x approaches 9 where f of x equals x plus 9 when x is less than 9 and

SVEN [57.7K]

Answer:

B. 18

Step-by-step explanation:

For the function

$f(x)=\left\{\begin{array}{l}x+9,\ \ x$

we can find the value of the function for all x that are very close to 9 but are less than 9 and for all values of x that are very close to 9 but are greater than 9.

1. For $x$

$\lim \limits_{x\rightarrow 9}f(x)=\lim \limits_{x\rightarrow 9}(x+9)=9+9=18$

2. For $x\ge 9:$

$\lim \limits_{x\rightarrow 9}f(x)=\lim \limits_{x\rightarrow 9}(27-x)=27-9=18$

So, limit exists and is equal to 18.

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3 years ago

Ronald is making hats and scarves for charity. He has enough yarn to make 5 hats and 8 scarves. Takes him 12 hrs to knit a hat,

kari74 [83]

Constraints are simply the subjects of an objective function.

The inequality that represents the constraint is: $12x + 6y \le 20$

Represent the number of hats with x, and the number of scarves with y.

From the question, we have:

He spends 12 hours to knit a hat
He spends 6 hours to knit a scarf

So, the equation of the total time spent is:

$Time = 12x + 6y$

This time spent is not more than 20 hours.

So, the inequality is

$12x + 6y \le 20$

Hence, the inequality that represents the constraint is: $12x + 6y \le 20$

Read more about constraints at:

brainly.com/question/24574823

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2 years ago

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Answer:

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Step-by-step explanation:

Divide 891 by 9, 9, and finally, 11. Or use a factorization calculator.

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3 years ago

Simplify<br> (x – 3) (232 – 4x – 7)

11111nata11111 [884]

Answer:

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Step-by-step explanation:

(x - 3)*(232 - 4x -7) >> Distribute x and -3 to the trinomial

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2 years ago

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