Answer:
Step-by-step explanation:
A perpendicular bisector is a special kind of segment, ray, or line that. (1) intersects a given segment at a 90° angle, and. (2) passes through the given segment's midpoint. Segment CD is the perpendicular bisector to segment AB. We derive two important theorems from the characteristics of perpendicular bisectors.
Answer:
32
Step-by-step explanation:
There are two ways of doing this.
Frist, divide the amount of bolts by time. This will get you the bolts produced in 1 minute.
195/20
=
9.75
Now we know that 9.75 bolts are produced every 1 minute.
Lets divide the 312 bolts by the bolts produced per minute. This will give us the amount of minutes it takes to produce the 312 bolts.
312/9.75
=
<u>32.</u>
<u>This is our answer.</u>
Another way of doing thisis to divide the 20 minutes by 195, this will give you how long it takes to produce a single bolt.
20/195
=
0.1025
Now, just multpliy it by 312, and you get how long it takes to produce 312 bolts.
0.1025*312
=
<u>32</u>
<u>And again, you get the answer.</u>
Hope this helps! ;)
Answer:
4=0
Step-by-step explanation:
Simplifying
(-9p + 7) + -1(-9p + 3) = 0
Reorder the terms:
(7 + -9p) + -1(-9p + 3) = 0
Remove parenthesis around (7 + -9p)
7 + -9p + -1(-9p + 3) = 0
Reorder the terms:
7 + -9p + -1(3 + -9p) = 0
7 + -9p + (3 * -1 + -9p * -1) = 0
7 + -9p + (-3 + 9p) = 0
Reorder the terms:
7 + -3 + -9p + 9p = 0
Combine like terms: 7 + -3 = 4
4 + -9p + 9p = 0
Combine like terms: -9p + 9p = 0
4 + 0 = 0
4 = 0
Solving
4 = 0
Answer:
D. people leaving a movie theater
Step-by-step explanation:
If you choices are the following:
A: all students who go to the movies
B: teenagers waiting on line at the movie theater
C: 100 names randomly selected from the phone book
D: people leaving a movie theater
When selecting a sample for a study, you first need to consider the purpose of the study to really determine what population would give you reliable results. Secondly, the population you will consider needs to be relevant to your study as well. A random sample does not necessarily mean you can just pick anyone.
People leaving a movie theater would be a good random sample because they could consist of people of different ages and different preferences, making this ideally random.
Answer:
1/2
Step-by-step explanation: