dontcare7045
16.12.2020 •
Mathematics
Which number line represents the solution to |x+4|=2
Solved
Show answers
More tips
- O Other How to Accidentally Get a Rare Coin with Your Change and How to Know Its Value?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- D Dating, Love, Relationships Why do we feel shame?...
- F Family and Home Why Does God Punish Us Constantly and How Can We Fix It?...
- F Family and Home Do Lullabies Help Babies Sleep or Is it Just a Myth?...
- B Business and Finance How to Get Your Money Back When Lending? Top 7 Ways...
- S Society and Politics Выборы: Смысл, Значение и Отражение...
- D Dating, Love, Relationships Why Should the Man be Active and the Woman Passive during Foreplay?...
- P Philosophy How did the concept of module arise in computer science?...
- S Society and Politics Why are thugs called gopniks ? A fascinating journey through Russian subculture...
Answers on questions: Mathematics
- M Mathematics Write an expression using Boolean operators that prints Special number if special_num is -99, 0, or 44. Sample output with input: 17 Not special number...
- M Mathematics For which intervals below is the average rate of change less than or equal to zero? Interval A -13 ≤ x ≤ -10 B -5 ≤ x ≤ 0 C -10 ≤ x ≤ -2...
- M Mathematics Find the magnitude of the vector 4i - 4j....
- M Mathematics HELP ASAP I NEED HELP LIKE NOW 30 POINTS DONT PUT RANDOM STUFF PLZZZZZZZZZ What is the value of x?...
- M Mathematics Machine M, working alone at its constant rate, produces x widgets every 4 minutes. Machine N, working alone at its constant rate, produces y widgets every 5 minutes. If machines...
- M Mathematics Two cars are 270 miles apart and travel toward each other on the same road. they meet in 3 hours. one car travels 2 mph faster than the other. what s the average speed of each...
- M Mathematics F(x) = x4/5(x − 6)2 find the critical numbers of the function...
- M Mathematics He perimeter of this pentagon is 280 cm. find the lengths of the sides....
- M Mathematics Asap pls. #22-6: a particular substance is worth $1.46 per cubic centimeter. assume the figure is composed of this substance. what would it s value be?...
- M Mathematics During the first week at a new job, krystal worked 7.5, 8, 7, 8.5, and 8 hours over the course of her five days. in her second week, krystal worked 4 more hours than she had...
Ответ:
Option C is correct.
Value of AM = 7
Explanation:
Given: In centroid D is on the median of AM.
AD = x+3 and DM= 2x-1.
In a ΔABC , a segment AM is the median to side BC.
The centroid D, on AM is the point of intersection of all 3 medians of the triangle divides the median in the ratio 2:1, where AD:DM = 2 : 1 .
Also, we can say that: AD=2DM
Substitute the value of AD and DM to solve for x:
Use Distributive property on right hand side; ()
x+3 = 4x-2
Subtract x from both sides of an equation:
Simplify:
3 = 3x-2
Add 2 both side of an equation:
3+2 = 3x-2+2
Simplify:
5 = 3x
⇒
Now, find the length of AM:
AM = AD+DM = x+3+2x-1
AM = 3x+2 ......[1]
Substitute the value of in [1];
AM =
Therefore, the value of AM is 7.