Answer:
Step-by-step explanation:
The conjugate of a radical expression is obtained by changing the sign of the middle term.
The conjugate of 
is simply 
Therefore, to obtain the conjugate of the given expression we simply shall be changing the negative sign to positive;
The conjugate of 
is simply;
In a scientific notation, it would be: 1.5 × 10⁻⁸
In short, Your Answer would be 1.5 × 10⁻⁸
Hope this helps!
C
14²+21²-√49
196+441-7
630
Mark brainliest please
The formula for the volume of a pyramid (V) is 1/3 the area of the base (B) multiplied by the height (H). If that’s what you’re asking:)
The "cylinder" has a diameter of 6, and therefore its radius is half that, or 3, thus
