Me oh my goashshdjsndmsbzkdbmdnsdbnd

1(A) 1.5 length 1.5 width

1(B) 478.5 in meters

2(A) 76.4

Step-by-step explanation:

For the first question, since the land is a square, we would need to find the square root of 2.25 kilometers. That is 1.5, so the answer is 1.5 for both dimensions.

To find the answer to the second question, simply multiply the 2 numbers together and multiply the answer by 1000.

.55*.87= .4785*1000=478.5. The area in meters is 478.5

To calculate the answer to part a of the second question, well have to use the equation pi*diameter=circumference, which well flip around to get diameter=c/pi. Since the circumference is 240, we can divide that by pi to get 76.4 rounded up.

The rest of these questions are kinda out of my league. I hope this helped to the best of  my ability! :D

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: