R equals approximately 4/5
Step-by-step explanation:
HL states that a hypotenuse and leg of a right triangle must be congruent, so you would need to know the hypotenuses are congruent and a leg is congruent. For 6, You're only given 2 sides instead of 3, and since this is a Side-Side-Side Postulate, you must have the third sides be congruent. For 7, Angle-Side-Angle requires to known congruent angles and a side <em>in between </em>them, so you would need to know that angle I is congruent to angle L. Lastly, Side-Angle-Side needs two sides and an angle between them, so you would need to know that side JI is congruent to HD. HI is already congruent to itself by the Reflexive Property, so you only need to know JI ≅ HD.
Enlarge since you looking at the blue lime (B’...)
<h2>An observational study.</h2>
Step-by-step explanation:
The researcher randomly makes observation on two groups of 75 people each. He did not interfere with the activity but just assigned the conditions without tampering its effect. Later on he observes and records the effects of each condition on the subjects .Thus, it is a observational study.
The experiment is not a double blinded experiment or a matched pair experiment because the researcher is aware of the conditions applied to the specific subject and their is no pair of subjects made who could be compared for the two conditions.
