Answer:
The answer is

Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula

where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
Q(2,4) and R(-3,9)
The midpoint is

We have the final answer as

Hope this helps you
Answer:
21.99
Step-by-step explanation:
This is simple just times 3.14 and 7 to get 21.99
By using Pythagorean Theorem,
C^2= (10)^2+ (9)^2
C^2=100 + 81
C^2=181
C= 13.4cm
Hope it helps!
Answer:
45% are boys
Step-by-step explanation:
because 18/40 = 45%