What is the are of the shaded region. The inner square is a width of x and a length of x+7. The outer square is a length of 4x and a width of 2x + 1.

7x²-3x

Step-by-step explanation:

What is the are of the shaded region. The inner square is a width of x and a length of x+7. The outer square is a length of 4x and a width of 2x + 1.

Area of a square = Length * Length

Area of the inner square = x (x+7)

Area of the inner square = x²+7x

Area of the outer square = 4x(2x+1)

Area of the outer square = 8x²+4x

Area of the shaded region = Area of outer square - Area of inner square

Area of the shaded region = (8x²+4x)-(x²+7x)

Area of the shaded region = 8x²+4x-x²-7x

Area of the shaded region = 7x²-3x

This gives the area of the shaded region

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.