For the probability density function, over the given interval, find E(x), E(x2), the mean, the variance, and the standard deviation. 12 55 f(x)= 125 2'2 ***

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A: Consider

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Q: 13. What is the twelfth term in the sequence an = 3n - 22? 09 0-7 O 14 O26

A: Find the twelfth term

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A: Please see the answer below.

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A: Topic :- probability

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A: On solving this we will get

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A:

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Q: Need

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A: We can find the vertical angle as below.

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A: Answer :-  We have to find number of solutions x will the system An×n x = b have , when |A| = 3

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A:

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A: *Jan Robinson* is Pilot.

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A:

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A:

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A: Solution is given below:

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A:

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A:

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A: Note to student : Thank you for postimg your queries. But as per our BARTLEBY answering policy we…

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A:

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A: Which set of angle can form a triangle

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Q: solve for k 7k+8+90+40=180

A: Solution:

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A:

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A:

Q: 口 3 21 -11 11 3√3 3 9√3 √3 8. Choose the correct answer. Multiply the radical expression. (-4+ √5)…

A:

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A: The detailed solution is given below Thank you

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A: We can simplify the logarithmic expression as below.

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A: Given    Transpose Matrix

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A:

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A: Solution of the problem as follows

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A: Plot graph by finding asymptotes.

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A:

Q: Solve the equation.

A: HERE given (x+3)/3 + (x+6)/2 = 6  . . . . . .  (1)   multiply equation (1) by 6 we get   2(x+3) +…

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A:

Q: 26. Find h in the matrix A below so that the eigenspace of A corresponding to λ = 4 is…

A:

Q: Factor the difference of squares. 4 9pm - 9pn* OA. 9p (m²-n²)2 OB. 9(m²p+n²)(mp + n)(mp − n) OC.…

A: Given:       9pm4-9pn4

Q: Multiply and simplify. (√x +2√√5)(√x - √5) = 0 (√x + √5)² = 0 0° 0/0 X Ś ?

A:

Q: The height of a triangle is 3 feet more than the base. The area of the triangle is 44 square feet.…

A: Let the height of the triangle be "h"and base be "b"h=3+b → (1)given Area ; A =44 sq.ft Since A=bh2…