Answer:
Step-by-step explanation:
circumference=2πr=6.28
r=6.28/2π=3.14/π=3.14/3.14=1
area=πr^2=π×1²=π=3.14 units²
The scale is 1 : 72.
The wingspan on the model: 7.5 in.
7.5 : x = 1 : 72
x = 72 * 7.5
x = 540 in
And since 1 foot = 12 inches
540 : 12 = 45 ft
Answer: C ) 45 feet
Answer:
A. 7
Step-by-step explanation:
We already know that 8+4 = 12, So now we have to find out how to make the equation equal 12.
2×6= 12, we have to find out what x will be in order to make the equation true.
2(7-1) = 2(6) = 12. Substitute the 7 for x.
x = 7
This shows all the work to get it right.