Answer:
SA = 967.6 cm²
Step-by-step explanation:
Surface Area of cylinder =
<u><em>Where r = 7 cm, h = 15 cm</em></u>
=> SA = 2(3.14)(7)(15)+2(3.14)(7)²
=> SA = 659.7 + 2(3.14)(49)
=> SA = 659.7 + 307.9
=> SA = 967.6 cm²
The height of the pole in yards would be <u>4 2/3yds</u>, and it's height in feet would be <u>14ft</u>.
hope this helped :)
1.5
Explanation: 3 is total. You have two stars. 1.5+1.5=3
Answer:
49.2 miles
Step-by-step explanation:
The distance remains the same. d
The time spent on the outbound trip is t1 = -------------
35 mph
and that on the inbound (return) trip is
d
t2 = -------------
45 mph
We combine these two fractions and set the sum = to 2.5 hours:
d(1/35 + 1/45) = 5/2
We wish to solve for d, the distance between home and work.
The LCD of 35, 45 and 2 is 630.
1/35 becomes 18/630; 1/45 becomes 14/630, and 5/2 becomes 1575/630. Then we have the simpler equation d(18 + 14) = 1575, or
d(32) = 1575, and d is then
d = 1575/32 = 49.2 miles
Answer:
c=10 units
Step-by-step explanation:
The Pythagorean Theorem states that a^2+b^2=c^2.
This means that the sides are represented by a^2+b^2. In order to find the hypotenuse in this problem, we substitute a and b for 6 and 8.
6^2+8^2=c^2
we do what it shows us and get:
36+64=c^2
from there, we add the left side altogether then square each side to get rid of the root.
100=c^2
√100=√c^2
and we get c =<em> 10 units.</em>