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
BlackZzzverrR [31]
3 years ago
14

Can someone help me do this with working pls

Mathematics
1 answer:
ycow [4]3 years ago
4 0
∵ the two triangles are congruent

AB / AD = BC / DE
8/4 = 6/ DE
DE = 6 x 3 ÷ 8 = 3 cm
You might be interested in
Slope 2/7; through (8,0)
Lera25 [3.4K]
Are you looking for the equation of the line? If so do you need point slope or slope intercept form?
8 0
3 years ago
Read 2 more answers
Which conclusions are valid given that ABCD is a parallelogram? Select True or False for each statement.
Burka [1]

it is true not false true

4 0
2 years ago
A line segment has endpoint j(2,4) and l(6,8).the point k is the midpoint of jl.what is an equation of a line perpendicular to j
GenaCL600 [577]
The equation of the line is:
 y-yo = m (x-xo)
 Where,
 m = (y2-y1) / (x2-x1)
 Substituting values:
 m = (8-4) / (6-2)
 m = (4) / (4)
 m = 1
 Then, the equation is:
 y-4 = 1 * (x-2)
 Rewriting:
 y = x-2 + 4
 y = x + 2
 The midpoint is:
 k = ((x1 + x2) / 2, (y1 + y2) / 2)
 k = ((2 + 6) / 2, (4 + 8) / 2)
 k = ((8) / 2, (12) / 2)
 k = (4, 6)
 Then, the equation of the perpendicular line that passes through k is:
 y = -x + b
 Looking for b we have:
 6 = -4 + b
 b = 6 + 4
 b = 10
 Substituting:
 y = -x + 10
 Answer:
 An equation of a line perpendicular to jl and passing through k is:
 y = -x + 10
3 0
3 years ago
Which person has more potential energy? Noah who jumped out of the plane at 100 m or Clara at 50 m in the air? Explain.
olga_2 [115]

Answer:

Noah

Step-by-step explanation:

Potential energy is the amount of energy that can be transfered to kinetic. This means that the higher person will have more potential energy.

4 0
3 years ago
Which is an equation of the line that is perpendicular to 3x+y=-5 and passes through the point (3, -7)?
nataly862011 [7]

Answer:

y+7=1/3(x-3) in point slope

y=1/3x-8 in slope intercept form

Step-by-step explanation:

First put 3x+y=5 in slope-intercept form (y=mx+b)

y=-3x+5

Give that the slope is -3 the perpendicular slope would be 1/3

now using the points (3.-7)

y+7=1/3(x-3) in point slope

y=1/3x-8 in slope intercept form

7 0
4 years ago
Read 2 more answers
Other questions:
  • Someone PLEASE help!!!!!!!!!!Solve the equation. b/-4 = -2
    9·2 answers
  • Any one wanna help with this question
    7·2 answers
  • What would this be subtracting decimals
    5·1 answer
  • How do I do probabillty
    11·2 answers
  • Eric plays basketball and volleyball for a total of 95 minutes every day. He plays basketball for 25 minutes longer than he play
    13·1 answer
  • Is it 13 x 6??? or 6 x 8?? 13 x 8????????????????<br><br> Please help! And explain you answer!
    7·2 answers
  • Any helpers?( it’s talking about the blue dot )
    11·2 answers
  • if (2,3) bisects the line segment joining the points (a,6) and (8,b),then what are the values of a and b​
    15·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST THANK YOU
    7·1 answer
  • Over 7 months, the weight of a baby measured in pounds doubled. Does its weight measured in kilograms also doubled
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!