Answer:
y =
The focus of the solar oven's reflector is (0,a)
Step-by-step explanation:
The missing figure( i.e diagram) from the question is attached below:
Now ; given that :
The focus of the sun's rays is at a point L = 5 inches away from the vertex of the reflector. Also the distance of the parabolic curve be a= L = 5
So the equation for a cross section of the oven's reflector with its focus on the
positive y axis and its vertex at the origin is expressed as:
x² = 4 L y
x² = 4 (5) y
x² = 20 y
y =
The focus of the solar oven's reflector is (0,a)
Answer:
y=−2/5x+4/5y
Step-by-step explanation:
Hope's this helps
Answer:
Segment GD is half the length of segment HC.
Step-by-step explanation:
Solution: Construct a right angle triangle ABC right angled at B.
To construct angle bisector of right angle ,we need to draw arcs from A and C on both the sides with the use of protector.
then join both the intersections of arcs to make the bisector PQ which intersect AC at D.
Now as it is bisecting the right angle B ,therefore as ∠B = 90°
⇒ ∠ABD+∠DBC= 90°
⇒∠ABD+∠ABD= 90°
[ As angle bisector bisects the angle into two equal halves,∴∠A =∠DBC]
⇒2∠ABD= 90°
⇒∠ABD=45° =∠DBC
Answer:
27
Step-by-step explanation:
If we follow the amount of players called,
Coach called three/3
Players called three/3
Three players called three/3
And make it into a equation, 1 x 3 = 3
Those three people call three more: 3 x 3 = 9
Those nine people call three more: 9 x 3 = 27