If the n x n matrices A and B are symmetric and B is in- vertible, which of the matrices in Exercises 13 through 20 must be symmetric as well? 13. ЗА 14. -B 15. АВ 16. A+B 17. В -1 18. А10 19. 21, + ЗА —4A2 20. АВ?А

Q: 3y=45

A: Given information:

Q: L(1-a) ( In =) dz 4 1 L6(1-2) ( In =) dr

A:

Q: Convert 1 over 8 to a decimal and tell whether it terminates or repeats

A: 1 over 8 means 1 divided by 8 So, dividing 1 by 8 , we get  18=0.125

Q: find the value of x 96 to

A:

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A: given that n=1000 p=0.02

Q: ust do number 27.

A: 27) To sketch the contour map and graph of the function:

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A: If bases are equal then automatically powers must be equal in order to satisfy an equation

Q: to 48x

A: Given expression is:

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A: From the given figure: From the property of the circle: PA·PB=PC·PD

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A: (a) Given that the percentage of stadiums have just built in the past 20 years is, P=15%=15/100=0.15…

Q: -4.5 x -2.5

A:

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A: Make the base equal than equate the exponents.

Q: 404÷133= %3D

A:

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A: The scatter plot drawn using the data is displayed below.     Thus, the correct option is,…

Q: Exercise 3: Find the Laplace transform of f(t) = cos (t -).

A:

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A: The given equation is 5+x=109.

Q: -2.9x = 5.8

A: Given  -2.9x=5.8  X=5.8/(-2.9) X=-2

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A: The number system is said to be the system of writing to express numbers. It is a method of…

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Q: Please answer #6 now.

A:

Q: V9-x2 2+3x dy dx

A:

Q: 66 to the nearest 100

A: Find 66 to the nearest 100

Q: with

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.