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
Alina [70]
3 years ago
12

In the figure shown DE = 7x-13 and DF =3x+3 what is the length of DF?

Mathematics
1 answer:
maks197457 [2]3 years ago
5 0

Answer:

The length of DF is 15

Step-by-step explanation:

Since the two lines are equal, which is given by the markings on the triangle, then you can set the two lengths equal and find x.

7x - 13 = 3x + 3

4x - 13 = 3

4x = 16

x = 4

Now that we know x = 4, we can plug into the DF length to find its amount.

DF = 7x - 13

DF = 7(4) - 13

DF = 28 - 13

DF = 15

You might be interested in
What are these values?<br> 1-3) =<br> -1) =<br> f(3) =(
o-na [289]
1-3=-2
-1=-1
I don’t really understand the question but I think no.1 is correct
6 0
4 years ago
Difference between<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20%20-%20%20%5Cfrac%7B3%7D%7B10%7D%20" id="TexF
vampirchik [111]

Step-by-step explanation:

  • see below

\longrightarrow \:  \frac{4}{5}  -  \frac{3}{10}

\longrightarrow \:  \frac{8 - 3}{10}

\longrightarrow \: \cancel{\frac{5}{10} }

\longrightarrow \:  \frac{1}{2}

3 0
2 years ago
Read 2 more answers
These too please i’ll cry if i don’t figure this out
sammy [17]

Answer:

PO = 11, LQ = 4, NQ = 12, perimeter of NLP = 24

Step-by-step explanation:

The centroid is the point where the medians intersect each other.

A median divides the side it intersects in 2 equal parts.

So, if NP = 11, then PO = 11

The medians of a triangle intersect each other in the ratio 2:1

So, if NL = 8, then LQ = 4 and NQ = 8+4 = 12

if ML = 10, LP = 5

Finally, the perimeter of the triangle NLP is

NL + NP + LP = 8 + 11 + 5 = 24

4 0
3 years ago
If y varies directly with x, write an equation for the direct variation. Then find each value.
Viktor [21]
1)
y = kx
-12 = k(9)
k = -4/3

y = (-4/3)(-4)
y = 16/3

2)
y = kx
8 = 20k
k = 2/5

y = (2/5)(10)
y = 4


3)
y= kx
-6 = k(-14)
k = 3/7

-4 = (3/7)x
-4(7/3) = x
x = -28/3
6 0
3 years ago
What is the ratio 84:24
dybincka [34]

Answer:

I think the simplest form of 84:24 is 7:2

Step-by-step explanation:

It's 7:2

6 0
3 years ago
Read 2 more answers
Other questions:
  • 50 POINTS! WILL MARK BRAINLIEST :)
    8·2 answers
  • Complete the problems below.
    11·1 answer
  • If 2/5 x h = 3, what is H
    13·1 answer
  • !!!!!!!!! Help Please!!!!!!
    12·1 answer
  • What is 3/12 equivalent to ?/100
    10·1 answer
  • Find the missing term 75, 67, 59,__ , 43, 35
    10·1 answer
  • Use the dot product to find M when v= (7.24)<br> a. 25<br> b. -17<br> c. 31<br> d. 625
    13·1 answer
  • Answer to this please?
    11·1 answer
  • ○a 25°<br>○b 31°<br>○c 23°<br>○d 59°​
    5·2 answers
  • A retailer bought a number of shirts for R1800. He sold them at a profit of R20
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!