Answer:
Height is 8.0in
Step-by-step explanation:
Surface Area of a cylinder = 2πr(r+h)
r is the radius
h is the height of the cylinder
Given surface area = 408.41in²
radius = 5in
h = ?
Substituting the given value into the formula
408.41 = 2π(5)(5+h)
408.41 = 50π + 10πh
408.41 = 50(3.14)+10(3.14)h
408.41 = 157+31.4h
408.41-157 = 31.4h
251.41 = 31.4h
h = 251.41/31.4
h = 8.0in
Answer:
$13.78
Step-by-step explanation:
87.5x.05=4.38
87.5+4.38=91.88
91.88x.15=13.78
Daniel is rollerblading at 15 miles per hour
Daniel can go 3 miles in 12 minutes so we do 12÷3 to find out how many minutes it takes to go 1 mile which is 4 now we do 60÷4 to get 15
Alternatively we could do 60÷12 to get 5 then do 3×5 to get 15
(a) Calculate the vertical distance between the eagle and the seahorse.
Answer a: 11.38 meters is the vertical distance between them.
(b) Describe Adrian's position from the sea level.
Answer b: Adrian is 1.13m below the sea level.
Step-by-step explanation:
(a) Since sea level is the origin of coordinates. distances above sea level are positive and distances below sea level are negative. The distance between two points is the difference between them.
The vertical distance between the eagle and the seahorse is the difference between their positions:
Distance = 4.56m - (-6.82m) = 4.56m + 6.82m = 11.38 meters
Answer a) 11.38 meters is the vertical distance between them.
(b) Adrian's position is in the middle of the distance between the eagle and the seahorse:
Middle = 11.38m/2 = 5.69m
Since 5.69m is more than 4.56m above the sea level, then Adrian is below the sea level:
4.56m - 5.69m = -1.13m
Answer b: Adrian is 1.13m below the sea level.
<h2><em>Spymore</em></h2>