Mathematics High School

Please help!!! I don’t really understand this at all

Please Help!!! I Dont Really Understand This At All

Answers

Answer 1
- line CD is perpendicular to segment AB
- point M is the midpoint of segment AB
Answer 2

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

PLS HELP IM TIMED!!
The sum of the measures of all the interior angles of a regular dodecagon
is 1800°. What is the measure of each of its interior angles?
- A) 150°
- B) 160°
- C) 180°
- D) 192°

Answers

Answer:

A) 150°

Step-by-step explanation:

Hope I helped you

Answer:

its A

Step-by-step explanation:

Write the word sentence as an equation. A number y decreased by 9 is 8 An equation that represents this sentence is​

Answers

Answer:

y-9 = 8

Step-by-step explanation:

Carlos has a $20 bill. He wants to buy his mom something for her birthday. He uses part of the
money to buy a some flowers. The flowers cost $15.99. He also wants to use the rest of the money
to buy some chocolate candies. Each chocolate costs $0.50. Which of these inequalities describes
the situation, where n is the number of chocolates Carlos is able to buy?
A) 15.99 -0.50n S 20
B) 15.99 -0.50n 20
C) 15.99 +0.50ns 20
D) 15.99 +0.50n > 20

Answers

Answer:

D) $15.99 +$0.50n> $20

Step-by-step explanation:

if a, b, and c are different prime numbers and abc=30, what is the sum of a, b, and c ?

Answers

Answer:

B. 10

Step-by-step explanation:

2 x 3 x 5 = 60

2 + 3 + 5 = 10

Hope that helps!

Manorialism was a system in which A) boys were trained by a master of farming or trade B) one-third of the farmland was unplanted each season C) peasants were dependent on the lord and his land D) vassals served a lord for protection and his land

Answers

Answer:

C: peasants were dependent on the lord and his land.

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

i did it already.

Write the sentence as an equation.
the quotient of t and 218 is equal to 156

Answers

Answer:

t/218 = 156

Step-by-step explanation:

The first photo in the collage is what I should make a copy of, anyone has any knowledge on how to add the numbers apart of the spreadsheet and the letters? ​

Answers

Answer:

uh no new copy

Step-by-steYou can make a new table to add the amounts and copy the pre-existing amounts or just add a new bar, but I guess it will be better if you just do it again.

You can make a new table and add the amounts and copy the pre existing amounts or just add a new bar but I think it would be best if you just make it again

carsen loves to run. she runs 4 miles each day if she wants to run a total of 56 miles how many days shoukd she run? whrite an equation to show this problem along with the answer

Answers

Answer:

the answer mia 14days

Step-by-step explanation:

56divided by 4 equals 14

what one is it? help pls

Answers

Answer:

(-2, 0)

Step-by-step explanation:

the y-intercept is (-2, 0), therefore that the solution.

What is the solution to this equation?
1/2x-7=1/3(x-12)
x=

Answers

Answer:

[tex]x=18[/tex]

Step-by-step explanation:

By rearranging and multiplying by 6 at the end:

[tex]\frac{1}{2}x - 7 = \frac{1}{3}(x-12)\\\frac{1}{2}-7 = \frac{1}{3}x - 4\\\frac{1}{2}x - \frac{1}{3}x = -4 + 7\\(\frac{3}{6} - \frac{2}{6})x = 3\\\frac{1}{6}x = 3\\x = 3 \cdot 6 = 18[/tex]

Please help I uploaded a picture

Answers

Answer:

the second one

Step-by-step explanation:

first one is divide

third one is well add

last is add aswell

it would be B. whenever there is an exponent inside the parentheses and on the outside, you will always multiply

The accompanying diagram shows two triangles. Which proportion could be used to solve for x ?

Answers

Answer:
A) 32/x=12/15

Explanation:
When we compare 32/x, we’re looking the ratio between the two side lengths on the first triangle. When we compare 12/15, we’re looking at the ratio between the two side lengths on the second triangle. These ratios must be equal to each other since the two triangles are similar, and we can use this to solve for x.

I hope this helps! Please comment if you have any questions.

if f (x) = -x - 7 what is f (-3)
Plz help

Answers

Answer:

f(-3) = -4

Step-by-step explanation:

f(-3) = -(-3) - 7

      = 3 - 7

      = -4

2x + 3 + x2, forx: 4

Answers

the answer should be 19

Find the 9th term of the geometric sequence 9, -27, 81...

Answers

Answer:

a9= 59049

Step-by-step explanation:

Find the r.

R= 81/-27

R= -3

a1= 9

a2= -27

a3= 81

a4= 81*-3= -243

a5= -243*-3= 729

a6= 729*-3= -2187

a7= -2187*-3= 6561

a8= 6561*-3= -19683

a9= -19683*-3= 59049

Benjamin uses a $20 bill to pay for his lunch. He received more than $5 in change. Which number line shows the possible cost of Benjamin's lunch?​

Answers

Answer:

i dont see a number line, attach a pic pls

Step-by-step explanation:

PLEASE ANSWER ASAP!! Will give brainliest!!

Answers

B!!! hope this helps <3

how do you cauculate net change ​

Answers

Answer:

You can calculate net change by subtracting the current day's closing price for an asset from the closing price of the previous day!

Step-by-step explanation:

(What net change is) The net change theorem states that when a quantity changes, the final value equals the initial value plus the integral of the rate of change. Net change can be a positive number, a negative number, or zero.

NOT MY ANSWER OR WHATEVER I GOT IT FROM G0OGLE

what is the graph of y = x2 + 8x + 4?

Answers

answer here’s the graph

g(x) = -f(x + 3)?
what is the vertex?

Answers

The vertex would be (-3, 0)

What is the answer to ...8.42 x 9

Answers

Answer:

75.78

Step-by-step explanation:

8.42*9=75.78

Answer:

75.78

Step-by-step explanation:

8.42 × 9 =  75.78

WILL MARK BRAINLIEST!! Which of the following scale drawings is a reduction of the original object? Original object:

FIRST ONE IS THE OG OBJECT!!! The rest is just the answers.

Answers

Answer:

40 feet 20 feet

Step-by-step explanation:

sorry I know this was already answer but need the points- But the first one the other person put was right :D

Answer:

I got 240 inches and 120 inches hopefully that's correct we go to the same school btw!!

Step-by-step explanation:

please help, and i will mark you BRAINLIEST
Solve:
A. 27
B. 343
C. 729
D. 216

Answers

Answer:

729

Step-by-step explanation:

9 x 9 = 81

81 x 9 = 729

j – 18 = 43 what's the answer guys

Answers

Answer:

61

Step-by-step explanation:

We know from the equation 43 is 18 less then j. Therefore, if we add 18 to 43, we will get the value of j.

43 + 18 = 61

So first you add 43 and 18 cause the original number is that total - 18 and you get 61

please help me asap?!? test is past due :(
Find the missing side lengths using your notes on the 45-45-90 and 30-60-90 special triangles.

Answers

It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:

Will give Brainlies!!!
What is the y=mx+b of the equation 3x−2y=12

Answers

Answer:

y=3/2x-6

Step-by-step explanation:

To find the y=mx+b you need to move the y on one side while moving the others on the other side

First, move the 3x to the other side by subtracting by 3x on both sides:

-2y=-3x+12

Divide by -2 on both sides:

y=3/2x-6

Answer:

y=3/2x-6

Step-by-step explanation:

3x-2y=12

isolate the y:

-2y=-3x+12

get rid of the coefficient in front of y by dividing by -2

y=-3/-2x+12/-2

y=3/2x-6

Frank spends $272.12 on 5 lawn mowers. The lawn mowers all cost the same amount what is the cost of each lawn mower?..

Answers

Answer:

1 360.6 that should be your answer right there

Step-by-step explanation:

Answer:

just add it 5 times and bring down the point

Step-by-step explanation:

Sandra bought 5 pounds of sweet potatoes for $6.80. What is the cost per pound of the sweet potatoes?

Answers

Answer:

the answer should be 1.36$ per pound of potatoes

LOL so yea this doesn’t really make sense to me so whoever can help I’ll give you brainliest or whatever

Answers

Answer:

it's a linear problem

Step-by-step explanation:

0=1

1=2

2=3

3=4

4=5

5=6

6=7

7=8

8=9

9=10

Solve for x:
- 3x – 9= - 1

Answers

X = -8/3




Djchbcdsndosndh

Answer:

- 8 / 3

Step-by-step explanation:

-3x= - 1 + 9

-3x = 8

x= - 8/3

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