Answer:C= 37.68 or 12pi
Step-by-step explanation:
First, diameter= 2 times the radius. So, in this case 6*2=12 which would be the diameter. Now, we have to figure out the circumference. c=pi*12. If we wanted to do the actual calculation just do: 12*3.14 which would get you 37.68 or 12pi
The cube root of -1000p^12q^3 would be -10p^4q^1. Since -10^3 (p^4)^3 (q^1)^3 is -1000p^12q^3.
11. Assuming distance is proportional to time,
.. (3 h)/(7 h) = d/(665 km)
.. d = (665 km)*(3/7) = 285 km . . . . . . selection B
12. (30 L)/(1.5 L/min) = 20 min . . . . . . selection C
Answer:
540 ft² ; 60 yd²
Step-by-step explanation:
1 square yard = 9 ft²
Dimension of room:
24ft 0in by 22ft 6in
1 in = 1/12 ft
6in = (1/12) * 6 ft = 0.5 feet
Hence, Dimension of room in feet ;
24ft by 22.5 ft ;
Square feet of ceiling tiles; (24 * 22.5)ft² = 540ft²
Square yards of carpet needed :
1 yd² = 9 ft²
Let yd² of carpet needed = x
1 yd² = 9 ft²
x yd² = 540 ft²
Cross multiply ;
9x = 540
x = 540 / 9
x = 60
Hence, 60yd² of carpet is needed
f(x) means you sub in the number for x in this situation it would be -2 so
f(x)=-(-2)^3+2(-2)-1
8-4-1
3