Answer:
<u>Question (a)</u>
Midpoint of a line segment:

Given:

Given:

<u>Question (b)</u>
Find slopes (gradients) of JL and MK then compare. If the product of the slopes of JL and MK equal -1, then JL and MK are perpendicular.

Given:

Given:


Hence segments JL and MK are perpendicular
-3, -1, and 1
-3 - 1 + 1 = -3
4*1= 4
4 - 7 = -3
Start by finding the mean of the gas range:
21+24/2= 22.5
Multiply 22.5 by 20
22.5 x 20= 450
Your answer is 450 miles
The correct answer is:
D) Jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
Answer:
1. 4 times 8, the multiplication property 2. 34 minus 4, the subtraction property. 3. 14 divided by 3.5, the division property. 4. 10 + 6, the addition property.
Step-by-step explanation for all of the questions:
If the number in the beginning of the equation is being multiplied by another number, it is the multiplication property. It is the same for all of the other properties.