The standard deviation of the set of values (2, 3, 6, 9, 10) is <span>square root of 12.5 (</span>
) therefore
OPTION C
Simply simplify the ratios/fractions into their simplest fraction form and divide the numerator by the denominator. If they are equal, they are in fact proportions, if not, they aren't
1. given
2. measure angle 1 plus measure angle 2 equals 90 degrees
3. B D bisects angle A D C
4. definition of angle bisector
5. definition of congruence
6. measure angle 1 is equal to measure angle 3
7. angle 1 is congruent to angle 3
7. definition of congruence
hope that helps
Answer: 3
Step-by-step explanation: 2+2-1=3
