Answer:
Step-by-step explanation:
To find the total surface area of a cylinder
We get
S.A=2πr^2+2πrh
S.a=2×3.142×4×4+2×3.142×4×16
S.A=100.544inches sq+401.192inches sq
S.a=502.464inches sq
Answer:
-0.25 ; 120 seconds 72 seconds
Step-by-step explanation:
Dive rate is constant :
Change in elevation after 8 seconds :
18 feets to 20 feets below
Rate of change = distance / time
(18 - 20) feets / 8 seconds
(-2 / 8) = - 0.25 feets per second
To reach 50.feets :
She needs to cover (50 - 20) = 30 feets
Time = distance / speed ; 30 feets / 0.25 = 120 seconds
2x-8-4x=10
-2x-8=-10
-2x-8+8=-10+8
-2x=-2
-2x/-2=-2/-2
x=1
Answer:
15/27
Step-by-step explanation:
We re-order the coords and then take the x values and subtract, and do the same with the y values to get the change Then using the slope formula, which is rise over run, or in other words
ΔY/ΔX.
77-50=27 X change
25-10=15 Y change
then we divide the y change over the x change
15/27
and that is the slope.
C(1;2)
a = 1
b = 2
r = 4
(x-a)² + (y-b)² = r²
(x-1)² + (y-2)² = 4²
(x-1)² + (y-2)² = 16