Use this equation: A=3.14159r^2
Answer:
Total Balance: $3720
Interest Paid: $720
Step-by-step explanation:
$3000 balance
0.06 = 6% per year
$3000 * 0.06 = $180 per year
$180 * 4 years = $720 Interest after 4 years
$3720 balance after 4 years
Answer: 1.3 seconds
Step-by-step explanation:
Given: Distance of the moon to the Earth = 384,400 km = 384400 x 1000 meters = 384400000 meters. [1 km = 1000 m]
Speed of light =
m/s = 299800000 m/s
Formula: 
Let <em>t</em> be the time taken by the light to travel from the moon to the Earth.

Hence, it will take approximately 1.3 seconds for the light to travel from the moon to the Earth.
Answer:
b) 516.2 cm³
Step-by-step explanation:
1) We can break the figure into two parts, a rectangular prism and a half cylinder.
2) The volume of the rectangular prism can be determined by multiplying 12 × 7 × 5, which is 420.
3) The equation for the volume of a cylinder is πr²h, but since this is half a cylinder, we will need to use the equation 1/2 × πr²h.
4) 1/2 × π × 3.5² × 5. The radius is 3.5, because the diameter is 7.
5) This should give us 30.625π.
6) Now we add 30.625π + 420, which is approximately 516.2.