Find the sum of 645.1 and 48.77 without rounding

693.87

Step-by-step explanation:

sum=addition

so

645.1+48.77=693.87

hope this helps

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

answer are

step-by-step explanation: