Compute the product a for the following pairs of matrices.
a. a = −1
1 0
b= −1
1 0

b. a = 0
0 −1
b= −1 0
0 1

c. a =

2 −
2

2

2
b= 0
0 4

d. a = 1
0 1
b= 0
0 2

e. a =
12

2
−
2
12
b=

2 −12
12

2

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?