radius = diameter/2
radius = 6.5/2 =
m
<span>volume </span>
x
x (radius)³
x
x 
x
x 

= 144 cubic meters
The 2 angles are complemantary or form right angles so

so

. Plugging that into BDC we get 11
Answer:
right triangle
Step-by-step explanation:
that's the condition for the Pythagorean Theorem hold true
Answer:
second option
Step-by-step explanation:
x - y= 28
x+y = 56
Answer:
y=15
x=43
(any variable can be used, I used x and y to make it easier to show)
Step-by-step explanation:
x+y=58
x-y=28
get x by its self
x=58-y
then subsitute into the other equation
(58-y)-y=28
58-2y=28
-2y=-30
y=15
sub. again
x+15=58
x=43