Answer:
9
Step-by-step explanation:
3y-(4y+6x)
=3*3-(4*3+6*-2)
=9
Sum of two sides can not be smaller than third side and difference of two sides cannot be larger then third side.
Answer is B.
<u>1</u><u>5</u><u> </u><u>inches</u> is the height of the pyramid
Step-by-step explanation:
The volume of a cube is a³
Given <em>a</em> = 5 inches
→ Volume = a³
= 5³
= 5×5×5
= <u>125 in²</u>
The volume of a pyramid is
Given a = 5 inches , h = height of pyramid




then,





Hence, the height of pyramid is <u>1</u><u>5</u><u> </u><u>inches</u>
Answer: Jennifer didn't randomly assign participants to the control and experimental group.
Step-by-step explanation: In the scenario discussed above, Jennifer failed to perform a random assignment of the participants who took part in the survey, that is the experimental group, those who receive the treatment and the control group, those who don't. Random assignment is required in other to address the issue of bias in our experiment. She was supposed to perform a random assignment of the participants to the two groups instead of asking them to make a choice.