Answer:
Brad´s class has the lowest score
Step-by-step explanation:
280
The 0 is in the ones.
The 8 is in the tens.
The 2 is in the hundreds.
Answer:
The width of the similar rug is 3 ft
Step-by-step explanation:
Calculate the percentage between the lengths:
3/9 = 1/3 (percentage)
The percentage is fixed for the widths as well which means 1/x = 1/3
x=3
Answer:
9 cm
Step-by-step explanation:
Since the container is a cylinder of base diameter d₁ = 12 cm and thus radius r = 12/2 = 6 cm. The water height is 8 cm. The initial volume of water is thus V₁ = πr²h = π × 6² × 8 = 288π cm³.
The sphere of diameter d = 6 cm has radius r₁ = 6/2 = 3 cm. Its volume V₂ = 4πr³/3 = 4π × 3³/3 = 36π cm³
Since the sphere displaces it own volume of liquid, the new volume V = V₁ + V₂ = 288π cm³ + 36π cm³ = 324π cm³
This is the new volume of water in the cylinder. Since the water level rises by h' cm and V = πr²h'
h' = V/πr²
= 324π cm³/π(6)²
= 324π cm³/36π cm²
= 9 cm
So, the water level is 9 cm above the base
$6.98 is answer but the answer that is rounded is $7.00
