For the matrices given below, perform each of the following calculations, or explain why the calculation is not
possible.
a= 2 1
3 0 2

b =
2 1
3 6
1 0

c = −2 3
1 1 4

d =
2 −1
−1 0
4 1

a. a+ 2b
b. 2a− c
c. a+ c
d. – 2c
e. 4d − 2c
f. 3d − 3d
g. 5b − d
h. c − 3a
i. b + 10d
j.
1
2
c + a
k.
1
4
b
l. 3a+ 3b
m.
1
3
b −
2
3
d

answer: sensy

step-by-step explanation:

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

i suppose it should be (y=2x-5)

step-by-step explanation:

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.