Recall from class that m is the vector space of all 2 x 2 matrices with real entries. let w be the set of all symmetric 2 x 2 matrices. (a) (5 points) show that w is a subspace of m2x2. (hint: the way lay does this, there are three things to check.) (b) (4 points) write down a basis for w. (hint: symmetric matrices look like c) (6 points) using the definition of basis, show that your basis really is a basis. (d) (1 point) fill in the blank with the correct number: the dimension of w is .

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .

the answer is d

hope this

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0