Suppose the matrices a, b, and c are square, but not necessarily of the same size. the n x n matrix ? 1) () 0 0 c solve such applications. is an example of a block diagonal matrix. bloc that make them useful both in applications in the sciences and in writing software that people (a) (4 points) assuming that d is invertible, find a formula for d-1 (in terms of a, b, and c, of course) and convince me that you have the right formula. (you're going to have to make one or more assumptions about a, b, and c. that's ok.) b) (1 point) in the previous part of this item, what assumption(s) did you make about a, b, and c?

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it