Answer:
y = -
Step-by-step explanation:
Given that the quantities vary inversely then the equation relating them is
y = ← k is the constant of variation
To find k use the condition x = 4 when y = - 6
k = yx = - 6 × 4 = - 24
y = - ← equation of variation
Answer: -3x²-9x+84
Step-by-step explanation:
Let the zeros be r1 and R2
The equation of a parabola going through those two zeros is
y=a(x−r1)(x−r2)
Answer:
h = 41.25 foot
Step-by-step explanation:
Given that,
Height of a street light = 7.5 feet
It casts a 3-foot-long shadow.
A nearby flagpole casts a 16.5 foot long shadow. We need to find the height of the flag pole. Let the height be h. It can be calculated as :
So, the height of the flag pole is equal to 41.25 foot.