#### 150.72
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- A cone has a radius of 4 cm and a height of 9 cm. What is its volume? (Use \(\pi \approx 3.14\))
- The volume \(V\) of a cone is given by \(V = \frac{1}{3} \pi r^2 h\).
- Substituting the values, \(V = \frac{1}{3} \times 3.14 \times 4^2 \times 9 = \frac{1}{3} \times 3.14 \times 16 \times 9 = 150.72\) cubic centimeters.
- A bank offers an annual interest rate of 5% compounded annually. If you invest $1000, what will be the amount after 3 years?
- The formula for compound interest is \(A = P(1 + r)^n\).
- So, \(A = 1000 \times (1 + 0.05)^3 = 1000 \times 1.157625 = 1157.63\) dollars.
