Answers
- point M is the midpoint of segment AB
9514 1404 393
Answer:
a, b, e (only)
Step-by-step explanation:
The circle centered at A is all of the points that are distance AB from A.
The circle centered at B is all of the points that are distance AB from B.
The points C and D are points that are distance AB from both A and B.
The line joining those points (C and D) consists entirely of points that are equal distances from A and from B. CD is the perpendicular bisector of AB.
Point M is one of the points on line CD, and is also on segment AB. Because it is on CD, we know it is the same distance from A as from B. That means AM = BM, and M is the midpoint of AB.
__
Points B, C, D are not on the same line, so can form a triangle. As with any triangle, the sum of any two segments is greater than the length of the third. Here, this is expressed as CB + BD > CD.
__
With some work using the Pythagorean theorem, you can show that ...
CM = AM×√3
Similarly, MD = BM×√3.
Adding these two relations tells us ...
CM +MD = √3(AM +BM)
CD = AB×√3 . . . . . AB and CD are not the same length
__
AM and BM are on the same line, so cannot be perpendicular to each other.
_____
Additional comment
When you are studying compass and straightedge constructions, you would do well to actually perform these constructions using those tools on paper. This gives you a feel for what is going on and helps you remember the steps. A computer screen is no substitute for hands-on.
Related Questions
1. A plumber charges $50 for a house call in addition to $80
per hour worked. Which equation represents y, the total cost
for x, hours worked?
Answers
Answer:
Step-by-step explanation:
Since the plumber charges $50 regardless of how many hours he works, then the equation must be 50 + ....
Since the plumber charges $80 for each hour, then the equation will be y = 50 + 80x.
4 7/14 - 9/14 (simplify it)
Answers
The answer is 3 5/7 hope this helps
Solve for x. (photo included)
Answers
What is the area of the sector of the circle when the radius is 10 and the shaded part is 45 degrees
Answers
Answer:
We are solving for the area so; A=134.16
Step-by-step explanation:
Here is the formula for finding area of a sector:
A = [tex]\pi r^{2}[/tex] × θ° ÷ 360°
where theta is the angle of the sector you wish to find, and r is the radius of the circle.
Substitute the numbers in and you get:
[tex]\frac{25\pi }{2} unit ^{2}[/tex]
You should find 39.26991 as your answer (or any number rounded according to the value of pi)
Simplify to find the quotients . 24. ) (a ^ 8)/(a ^ 3)
Answers
Answer:
a^5 is the answer
Step-by-step explanation:
a^8 / a³
= a^8 - 3
= a^5
Answer:
a^5
Step-by-step explanation:
A single card is drawn from a standard 52 card deck.
Work out the probability of choosing "a club".
Give your answer in its simplest form.
Help pleaseee
Answers
13/52
.25
Or 25% of drawing a club
A shark is swimming 60 feet below the surface of the ocean. There is a fish that is 25 feet deeper in the water use expression (-60)+ (-25)
Answers
Answer:
85 feet below the surface
Step-by-step explanation:
(-60)+(-25)= -85
-85*-1= 85
David drew a scaled down model of a racquetball court he played on last week what is the actual perimeter of the court david played on last week
Answers
Answer:
Step-by-step explanation:
Maste
1) 2,000 pounds of sand is to be put into 100-pound bags. Each bag will sell
for $5.00. How much is the sand worth altogether?
Answers
Answer: 100$
Step-by-step explanation:
PLEASE HEKLPP
IF ITS RIGHT ILL GIVE BRSAINLIEST
Answers
Answer:
We conclude that:
h(f(-1)) = -2
∴ option D i.e. -2 is correct.
Step-by-step explanation:
Given
f(x) = 4x² - 1
g(x) = 1/2x + 5
h(x) = 2(x - 4)³
To determine
h(f(-1)) = ?
In order to determine h(f(-1)) first we need to determine f(-1).
substitute x = -1 in the function f(x) = 4x² - 1
f(-1) = 4(-1)² - 1
f(-1) = 4(1) - 1
f(-1) = 4-1
f(-1) = 3
so
h(f(-1)) = h(3)
now substitute h = 3 in the function h(x) = 2(x - 4)³
h(x) = 2(x - 4)³
h(3) = 2(3 - 4)³
h(3) = 2(-1)³
h(3) = 2(-1)
h(3) = -2
Thus,
h(f(-1)) = h(3) = -2
Hence, we conclude that:
h(f(-1)) = -2
∴ option D i.e. -2 is correct.
does any one wanna play r.oblox?
who likes to play ragdoll?
Answers
Answer:
Me!
Step-by-step explanation:
MyLifeIsFabulous
I also don't know what this shape is lol please help
Answers
Answer:
Thats an octagon
Step-by-step explanation:
It has 8 sides
your help would be greatly appreciated
Answers
Answer:
12/13
Step-by-step explanation:
Sin, remember it as SOH. SOH is Sin=Opposite/hypotenuse.
is 16/24 equivalent to 2/3
is 10/16 equivalent to ⅔
Answers
Answer:
Yes for the first, no for the second
1. Sarah and Maya both need notebooks and pencils. The equation that represents Sarah's
purchases is y = 13- 3x. The equation that represents Maya's purchases is y = 7 -x. If y
represents the price of notebooks, and x represents the price of pencils, what are the prices of
the notebooks and pencils?
a) pencils: $4 notebook: $3 go to card 4
b) pencils: $6 notebook: $1 go to card 3
c) pencils: $3 notebook: $4 go to card 5
d) pencils: $1 notebook: $6 go to card 7
e) pencils: $4 notebook: $4 go to card 2
Answers
Step-by-step explanation:
We have y = 13 - 3x and y = 7 - x.
=> 13 - 3x = 7 - x
=> 2x = 6, x = 3.
Then y = 7 - (3), y = 4.
Hence the price of a pencil is $3 and the price of a notebook is $4. (C)
answer is c) pencils: $3 notebook: $4 go to card 5
A trainer uses 0.75 roll of medical tape on each soccer player. If there are 15 players on the team and 80% get taped up, how many rolls of tape does the trainer need
Answers
Answer:
The answer is 9 rolls.
Step-by-step explanation:
you do 80% of 15. Then you have the number of players that got taped. Now you multiply 0.75 by 12 players.
Please mark me brainliest,5stars, and a thanks! Have a good day!
This year Linda watched 60 movies. She thought that 36 of them were very good. Of the movies she watched, what percentage did she rate as very good?
Answers
36/60
=0.6
60% is your answer
Explain why a systems engineer would work for the Federal Aviation Administration and describe his or her role.
Answers
Answer 1 (edge correct answer):
One correct answer is that a systems engineer might work in air traffic control designing an air traffic control solution program. The program may be used to train thousands of air traffic controllers to ensure they can perform their jobs effectively.
Answer 2 (answer I made myself)
Explain why a systems engineer would work for the Federal Aviation Administration and describe his or her role.
A systems engineer would work for the Federal Aviation Administration because systems engineers are able to develop systems that manage the many technological systems that are on modern ships, planes, helicopters, etc. A systems engineer's role would be to design requirements, gather data, and develop systems for the project they are working on. Systems engineers are almost always required in projects made by the Federal Aviation Administration. The reason I believe that systems engineers are required in the FAA is because: "In an information technology field, an engineer may work to develop systems in virtually any industry. Health care, education, financial services, and transportation industries need information technology developers, managers, and engineers. In the transportation field, a systems engineer might work in air traffic control for a company that works for the Federal Aviation Administration. A systems engineer would help develop an air traffic control solution program. The program may be used to train thousands of air traffic controllers to be sure they can perform their jobs effectively." This evidence shows how the role as systems engineer has relates to joining with the FAA (Federal Aviation Administration).
gallon of gas: $2.15, 15% markup
Answers
which one is it and can you explain why please i need help
Answers
Answer:
B. a = 6, b = 8, c = 10
Step-by-step explanation:
Use the Pythagorean Theorem to solve for a right triangle: [tex]a^{2} + b^{2} = c^{2}[/tex]. This is only true for the numbers in solution B.
Hope it helps!
Select all of the values of n that satisfy the equation n2 = 64.
A.
n = –8
B.
n = –32
C.
n=(64−−√)
D.
n=(64−−√)2
E.
n = 8
F.
n = 32
Answers
Write the polynomial in standard form: x^2+4-3x
Answers
Answer:
x^2-3x+4
Step-by-step explanation:
What coefficients do you need to balance the following equation?
Answers
Answer:
4,3,2,6
Step-by-step explanation:
this is because all the atoms are in same number in reactants and products
Which of the following expressions is equivalent to 4n + 8
Answers
Answer:
You have to give us the other expressions :)
Step-by-step explanation:
Para que sirven los modelos matemáticos?
Answers
Answer:
Un modelo matemático es una representación simplificada, a través de ecuaciones, funciones o fórmulas matemáticas
Step-by-step explanation:
Help I will be marking brainliest!
A. 48
B. 124.8
C. 135.2
D. 115.2
Answers
Answer:
B. 124.8Step-by-step explanation:
ΔBDS ~ ΔBZD
BD = 52BZ = 20BS = ?Use ratios of similar triangles:
BS/BD = DZ/BZBS = BD*DZ/BZDZ = √(52²-20²) = 48
BS = 52*48/20 = 124.8Correct choice is B
What is the area of this face?
12in²
15in²
16in²
17in²
Answers
the highlighted face is a square
the area of a square is length X width
the length is 4in and the width is 4in
so it would be 4 X 4 which is 16
Trevor works at a toy factory. Trevor makes 92 toys in four hours. Enter the number of toys Trevor will make in six hours at this rate.
Answers
Answer:
The answer is 138
Step-by-step explanation:
4:92
1:23
23×6=138
Answer:
138
Step-by-step explanation:
92 divided by 4 = 23
Trevor makes 23 toys per hour
23 x 6 = 138
So, Trevor would make 138 toys in 6 hours.
find an Equation for the perpendicular bisector of the line segments whose in points are (8,3) and (2,-7)
Answers
(I’m not 100% sure but I think this is it!)
Susie ran a race. she ran 5 miles an hour and the race took her t hours to complete.
how long was the race ?
write your answer as an expression
Answers
Answer:
5 x 2
Step-by-step explanation:
5 x 2 is the answer because it says she ran 5 miles and took 2 hours to complete!
