c is right answer because 54.15 is bigger than 54.05
Yay, implicit differnentiation
when you take the derivitive of y, you multiply it by dy/dx
example
dy/dx y^2=2y dy/dx
for x, the dy/dx dissapears
ok
so differnetiate and solve for dy/dx
3y² dy/dx-(y+x dy/dx)=0
expand
3y² dy/dx-y-x dy/dx=0
3y² dy/dx-x dy/dx=y
dy/dx (3y²-x)=y
dy/dx=y/(3y²-x)
so at (7,2)
x=7 and y=2
dy/dx=2/(3(2)²-7)
dy/dx=2/(3(4)-7)
dy/dx=2/(12-7)
dy/dx=2/5
answer is 2/5
Let a be the arc length...
a/(2πr)=90/360
a/(2πr)=1/4
a=πr/2 and r=7.5 so
a=3.75π cm
a≈11.78 cm (to the nearest one hundredth of a cm)
Answer:
9 that what p stands for hope it help
Step-by-step explanation:
Answer:
Given,
The total distance = 
km,
Time = 
hours,
Since,
Thus, the speed of the group of hikers = 
= 3 km per hour,
Now, Distance = speed × time
Let y be the distance( in km ) covered in x hours
⇒ y = 3x
If x =
If x = 2
If x =3
If x = 4
Hence, the required points in the coordinate plane are, ( shown in the below diagram )
(3/4, 9/4), (2, 6), (3, 9) and (4, 12)
