Answer:
Hope this helps
Step-by-step explanation:
x= 17/8
y= -11/4
Surface area = volume
2πr(h + r) = πr^2h
2h + 2r = rh
rh - 2h = 2r
h(r - 2) = 2r
h = 2r/(r - 2) = 7.2/(3.6 - 2) = 7.2/1.6 = 4.5
surface area = 2πr(h + r) = 7.2(4.5 + 3.6)π = 7.2(8.1)π = 58.32πcm^2
Volume = πr^2h = (3.6)^2 x 4.5π cm^3 = 12.96 x 4.5π cm^3 = 58.32π cm^3
Answer:
13
Step-by-step explanation:
because what x 5=65 ?
? now =13
13 x 1=13/row 1
13 x 2=26/row 2
13 x 3=39/row3
13 x 4=52/row 4
13 x 5=65/row 5
hope this helps have a awesome afternoon:)
Answer:
The area of the regular hexagon is
Step-by-step explanation:
we know that
The regular hexagon can be divided into 6 equilateral triangles
so In this problem
The radius is equal to length side of the polygon
The area of the regular hexagon is equal to the area of six equilateral triangle
we have
---> the base of each triangle is equal to the radius
---> the height of each triangle is equal to the apothem
substitute
The equation of the height as a function of time for this case is given by:
h (t) = - 16t ^ 2 + 10t + 100
By the time the egg hits the ground we have:
-16t ^ 2 + 10t + 100 = 0
We look for the roots of the polynomial:
t1 = -2.2069555463432966
t2 = 2.8319555463432966
As it is about time, we use the positive root:
t = 2.83 s
Answer:
it hits the ground at:
t = 2.83 s