Answer:
36 cm
Step-by-step explanation:
1cm = 10 km
360km/10km=36
1x36=36
70 x 100 = 7,000
Therefore, 70 hundred is equal to 7 thousands.
The answer is D
16.55 divide by 2= 8.275
8.275+8.275+16.55+16.55=49.65
The correct answer is the option D, which is: <span>D. 78 cm; 39 cm; 30.3π cm
The explanation is shown above:
1-The formula for calculate the circumference of a circle is:
C=2</span>πr
78π=2πr
2- The radius is:
r=78π/2π
r=39 cm
3- The diameter is:
D=39 cm x 2
D=78 cm
4- The arc length is:
arc length=(140°π/180°)(39 cm)
arc length=30.3π cm
Answer:
(x+1)(3x+2) is the answer
