Answer:
- root (7²+8²)=10.63
- root (10²-5²)=8.66
- root (11²-3²)=10.58
- root (18²+15²)=23.43
Step-by-step explanation:
a²+b² = c²
a = side of right triangle
b = side of right triangle
c = hypotenuse
Answer:
E. 120
Step-by-step explanation:
Let's say the number of total flowers is (15+2)x
That means the number of geraniums is 2x.
That also means that 1020 = 17x, which makes x = 60
Because 2x = geraniums and x = 60, the number of geraniums is 120
Answer:
9 should be added to both sides of the equation to complete the square.
Step-by-step explanation:
Given : 
To Find: What number should be added to both sides of the equation to complete the square?
Solution:

Add the square of half of coefficient of x
So, the square of half of coefficient of x = 
So, 




Thus 9 should be added to both sides of the equation to complete the square.
Answer:

Step-by-step explanation:
Let points D, E and F have coordinates
and 
1. Midpoint M of segment DF has coordinates

2. Midpoint N of segment EF has coordinates

3. By the triangle midline theorem, midline MN is parallel to the side DE of the triangle DEF, then points M and N are endpoints of the midsegment for DEF that is parallel to DE.