Select the correct answer. What is the sum?
+
OA.
0.B. (-31)
OC.
0
4
e
D.
These two matrices cannot be added.
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The question is incorrect. Please rewrite the question.

(D) These two matrices cannot be added.

Step-by-step explanation:

Matrices of different shapes can't be added, but they can be multiplied. : ) Have a good day.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.