Area of the bases
<span>2π<span>r2</span>=2π∗784=1568π
</span>circumference of base
<span>2πr=56π
</span>extension of the height
<span>2πr∗h=56π∗48=2688π
</span>bases plus none base surface is total surface
<span><span>1568π+2688π=4256π</span></span>
Answer:
Step-by-step explanation:
Let the distance be d
<u>Then the time in travel is</u>
- d/60 one way, d/50 on return
<u>The round trip would take 1/2 hours longer if the average speed was 55 mph</u>
- d/60 + d/50 = 2d/55 + 1/2
- d/60 + d/50 - 2d/55 = 1/2
LCM(60,50,55) = 11*12*5*5 = 3300
- 55d/3300 + 66d/3300 - 120d/3300 = 1/2
- d/3300= 1/2
- d = 1650 miles
Answer:
B
Step-by-step explanation:
Using the trig. identity
cos x = 
Given
secx = - 
, then
cos x = - 
× 
= - 
= - 
, thus
x = 
(- ) = 
→ B
The answer is B) you climb up 9 flights of stairs
Take it as 19 and 0.07, then the mixed no. Is 19 7/100 since 0.07 is 7/100
