Answer:
415.7 mph or mph
Step-by-step explanation:
Did you make a sketch and got a right-angled triangle?
let the horizontal distance between the plane and the station be x miles
let the distance between the plane and the station be y miles
given: dx/dt = 480 mph
find: dy/dt when y = 6
y^2 = x^2 + 3^2
when y = 6
36 = x^2 + 9
x = √27
2y dy/dt = 2x dx/dt
dy/dt = (x/y)dx/dt
= √27(480)/6
= 415.7 mph or 416 mph
i think i hope this helps
The answer C ! Have a good day
Answer:
Step-by-step explanation:
x2+7x+16=0
9x+16=0
-16 -16
=0 =-16
9x=-16
-16/9=-1.77777777778
x=-1.77777777778
Im pretty sure thats right
Answer:
d = 76 m
Step-by-step explanation:
It is given that, the speed of 4 ft per second when it takes off and flies upward
We need to find how far away from the surface of the water will the seagull be after 9 seconds.
Speed is distance over time.
So,
Distance, d = vt
d=4 ft/s × 19 s
d=76 meters
So, the seagull will be at a distance of 76 m from the surface of water.
Hi!
If April had 3/7 of a pound of pecans and her sister ate 2/3 of them, then her sister will have eaten 2/7 of a pound of Aprils pecans!