To find the volume of a sphere you have to use the equation
V = 4/3 π r³ Substitute in the r value (8)
V = 4/3 π 8³ Simplify the exponent
V = 4/3 π 512 Multiply 4/3 and 8 (In other words ; (4 x 512) / 3)
V = 682.67 π Multiply
V = 2143.5838 cm³
The right answers are
1. C, 1
2. B, an+1 = an x 3, a1 =5
3. C, an = -6 x 0.5^n-1
4. D, an + 2/3 x (1/2)^n-1
5. D, an+1 = an x (-2), a1 = 5
I just took the test and got 100% so these should be correct
When you mean estimate do you mean by rounding the first numbers?
