10. Eleven sets of fraternal twins are tracked to see the number of years of education. The results are as follows: Sister 14 16 13 12 19 9 12 14 11 20 16 Brother 16 17 12 14 19 11 18 17 14 17 16 Is there a significant difference in the years of education between a fraternal brother and sister? (a = .10)

Q: 3 %3D

A:

Q: Find the positive number which gives the smallest answer when you add its square to 16 times its…

A: Let the number is x So,  when I add its square to 16 times its reciprocal, then I get: We have to…

Q: Write the solution set of the equation 2x₁ - 5x₂ + 3x3 = 2 using parameters

A:

Q: Solve: a 5X-1 = 7x

A: We have to solve for x.

Q: Please show every step. Also, set up as an equation where you are solving for “X”.

A:

Q: Is equation, odd, even or negative?

A:

Q: The number of people playing a new phone app game triples every month when the app first launched…

A: We are given that the number of people playing a new phone app game triples every month. When the…

Q: X-X-30-0

A: x2 – x – 30 = 0Solve by completing the square.

Q: The amount of military spending M (in biliions of dollars) in the U.S. during year t is given…

A: Given:The amount of military spending M in the U.S. during year t is givenapproximately…

Q: x^2=4x-9. Solution set is: { , }

A:

Q: 6x-1 3x +4 3x-1

A:

Q: Solve: х? — 7х — -12 O x = -3, 4 O x = – ¤ = — 4, 3 х —D — 4, — 3 %3D Ox = 3, 4

A: The given quadratic equation is: x2-7x=-12

Q: Tom visits different states every summer. This summer, he started with 3 states already visited and…

A: Let d:denote number of days     S: number of states visited by Tom .

Q: 2 * = 8

A: Given query is to find the value of x.

Q: 22 V2 V3

A:

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.