1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataliya [291]
2 years ago
11

Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB, AC, BC.

Mathematics
1 answer:
insens350 [35]2 years ago
4 0

Answer:

x =  \frac{2(A_T) }{(AB)  +  (AC) + (BC)}

You might be interested in
In a random sample of 1,000 high-school students, 29 percent indicated that they had read the Declaration of Independence at lea
7nadin3 [17]

Answer:

c. Ninety-five percent of the time, the percentage of those questioned who have read the Declaration of Independence would likely be between 25 and 33 percent.

Step-by-step explanation:

Margin of error:

"It means the percentage difference of the result above or below the exact value."

i.e. 4 percent of margin error in the question means that the result will be either 4 percent above the 29 percent or 4 percent below the 29 percent.

OR "the result can vary upto 4 percent above or below the 29 percent."

Let me simplify the answer first in number then convert it percent to understand easily.

29 percent of 1000=  (29/100)*1000=290

4 percent of 1000=(4/100)*1000=40

If 290 students had read the declaration of independence at least once with 40 margin of error, then it means the number of students that had read declaration of independence may be 330 or 250

250 is 25% of 1000 and 330 is 33% of 1000, that is why ninety-five percent of the time, the percentage of those questioned who have read the Declaration of Independence would likely be between 25 and 33 percent.

4 0
3 years ago
A landscaper has enough cement to make a patio with an area of 150 Sq ft. The homeowner wants the length of the patio to be 6 ft
Natasha_Volkova [10]
A=lw=150\\l=w+6\\(w+6)w=150\\w^2+6w=150\\w^2+6w-150=0\\w=\frac{-b+-\sqrt{b^2-4ac}}{2a}\\w=\frac{-(6)+-\sqrt{(6)^2-4(1)(-150)}}{2(1)}\\w=\frac{-6+-\sqrt{36+600}}{2}\\w=\frac{-6+-\sqrt{636}}{2}\\w=\frac{-6+-2\sqrt{159}}{2}\\w=-3+-\sqrt{159}>0\\w=-3+\sqrt{159}\\\\l=(-3+\sqrt{159})+6\\l=3+\sqrt{159}

Width = -3 + sqrt(159)
Length = 3 + sqrt(159)
4 0
3 years ago
The measure of angle B is 839, and the measure of angle C is 420.
Usimov [2.4K]

Answer: C. 55 degrees

8 0
2 years ago
Please help me<br><br> Find the value of x
kvv77 [185]

Answer:

x = 5 and y = 22

Step-by-step explanation:

See attached image.

6 0
1 year ago
List the values that make up the domain of this relation.
balandron [24]

\bf (\stackrel{\downarrow }{5},3),(\stackrel{\downarrow }{2},-7),(\stackrel{\downarrow }{1},-8),(\stackrel{\downarrow }{8},3)\qquad \quad \stackrel{\textit{the domain is always the set of the 1st coordinate}}{(5,2,1,8)}

6 0
2 years ago
Other questions:
  • The answer to question number 2
    11·1 answer
  • How to graph y=4 to the x
    13·2 answers
  • Plz help me I need to turn it in on Monday
    13·1 answer
  • 3x+1=8x-24 helpppppppp
    15·2 answers
  • 10) what is the algebraic expression for the following word phase : the sum of 5 and 2x?
    13·1 answer
  • Is (-3, -5) a solution of the graph inequality?
    11·2 answers
  • Is this question a statistical question Which student spends the most time playing musical instruments? explain why or why not
    14·1 answer
  • What is the solution
    10·1 answer
  • What is the probability of drawing a queen or a heart from a standard deck of 52 cards?
    6·2 answers
  • If a= 3 and b= 5, find<br> (a + b)<br> O 8/5<br> 3/8<br> 5/8
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!