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
MrRa [10]
3 years ago
11

Please please help me please help please please help me please help please

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Answer:

Perimeter is 17.07

Step-by-step explanation:

We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.

We need to use the Pythagorean theorem to get the length of DE.

DE = \sqrt{5^{2} +5^{2}}=\sqrt{50}  = 7.07\\

So the perimeter of DEF is 5 + 5 + 7.07 = 17.07

You might be interested in
Consider the sequence 3, -9, 27, -81, .. Find the 14th term of the sequence.
bagirrra123 [75]

Answer:

let 'a' be the first term, 'd' be the common difference between all the terms of the sequence

Step-by-step explanation:

therefore, a = 3,

and, d = -9 -3

          = -12

hence the 14th term would be,

=> a + 13d

=> 3 + 13( -12 )

=> 3 - 156

=> - 153

5 0
3 years ago
Read 2 more answers
Who is in 6th grade or 7th? <br> cause I swear hrw.com is horrible
LiRa [457]

Answer:

Not me

Step-by-step explanation:

im in high school lol

8 0
2 years ago
Read 2 more answers
What percent of one hour is 25 minutes?
igomit [66]

Answer:

41.667% or 42%

Step-by-step explanation:

25/60

simplify

5/12 = 41.667

3 0
3 years ago
-6000 divded 7680<br> please help me
SIZIF [17.4K]
It is -.78125 if you round it it’s 1
6 0
3 years ago
Read 2 more answers
Describe the steps you would take to solve the
ikadub [295]

Answer:

32.5

Step-by-step explanation:

d

4 0
3 years ago
Read 2 more answers
Other questions:
  • Given the functions f(x)=7x-2 amd g(x)=3x+6, find the value of x for which F(x)=g(x)
    15·2 answers
  • the coordinates of the vertices of a rectangle in order are (5,2), (-1,4), (-2,1) and (4,-1). what is the perimeter of the recta
    6·1 answer
  • Suppose you just received a shipment of twelve televisions. Three of the televisions are defective. If two televisions are rando
    11·1 answer
  • Jamey says she only has 30% of her book to go before she finishes it. She has read 147 pages so far.
    15·1 answer
  • kylie is 6 years younger than her brother. The sum of their ages is 22. How old is Kylie? How old is her brother
    7·1 answer
  • If 60 - y &lt;20, then y could be?
    5·1 answer
  • Someone purchase 12 books. But needs 4 books for each of the projects ar school. How many projects would they need
    11·1 answer
  • Please help asap please i give brainliest
    15·2 answers
  • What's the answer for this
    8·1 answer
  • Pls answer 10 points I will mark brainliest
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!