Evaluate in the order of operations! PEMDAS
Parentheses
Exponents
Multiply/Divide (left to right)
Addition/Subtraction (left to right)
Example: 5 x 2 / 5 + (6 x 3)
1. Evaluate parentheses: 6 x 3 = 18
2. Multiply and divide: 5 x 2 = 10, 10 / 5 = 2
3. Add and subtract: 2 + 18 = 20
4. We're done: 20
[1] First, remember that the sum of the angles in a triangle must add up to 180*.
[2] We are told two of the angles, 44* and 66*, but we are missing the third.
[3] Combining [1] and [2], we know that 44* + 66* + ? = 180*. In other words,
110* + ? = 180*
so,
? = 70*
The missing angle 3 is equal to 70 degrees.
The volume of a sphere is calculated like so:
v = 4*pi*r^3/3
so half sphere will have half that volume:
v = (<span>4*pi*r^3/3)(1/2)
</span>v = <span>4*pi*r^3/6
</span>plug in the data:
v = <span>4*pi*(10)^3/6
</span>v = 2094.4
that is the volume of the half sphere
^n=1/square root of 59 (535) ,if that makes sense its hard to type it
