You go down 8 floors down your friend goes up 5 floors write each amount as an integer
1 answer:
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Answer:
219m
Step-by-step explanation:
Since the man observes the car with angle 15 before observing in 33 degrees.
For the first observation
The angle observation gives an angle if 33 degrees with the horizontal.
It gives a triangle which I'll attach to the que,
from the first triangle
Tan 33 = 100/y
Y= 100/ tan 33
Y = 153.99m.
This is the distance from the building to the distance where it was secondly observed( 33).
To find x
tan 15 = 100/(153.99+x)
153.99 + x = 100/ tan 15
153.99 + x = 373.21
The distance between the two observed angles
X= 219m.
Answer:
The two roots of the quadratic equation are
Step-by-step explanation:
Original quadratic equation is
Divide both sides by 9:
Add to both sides to get rid of the constant on the LHS
==>
Add to both sides
This simplifies to
Noting that (a + b)² = a² + 2ab + b²
If we set a = x and b = we can see that
=
So
Taking square roots on both sides
So the two roots or solutions of the equation are
and
So the two roots are
and