Sa=4pir^2
100pi=4pir^2
divide both sides by 4pi
25=r^2
sqrt both sides
5=r
radius=5cm
Answer:
The scale factor is k = 1/30
a)
<u>The length of the wing on the model:</u>
- 9 m * 1/30 = 900 cm * 1/30 = 30 cm
b)
<u>The area of the tail section of the plane:</u>
- 80 cm² : (1/30)² =
- 80 cm² * 900 =
- 72000 cm² =
- 72000 * (1/100)² m² =
- 7.2 m²
523.6 m3 i hope this helps mark me as brainliest
Answer:
f(s) = 2( 5s + 6)
Step-by-step explanation:
This means value of f of s
final score before bonus = 2 x 5 = 10
Add the bonus = 2 x 6 = 12
Add together if simplified= 10s+12, we remove the s, then add and confirm score has now been fully totaled = 22.
Half way through we can show 10s is the score of both even and only fs = 22 for the winner.
Since there are 6 numbers on a die that makes it a 1/6 chance to roll a 4. So to roll 2 4's would be double. 2/12
