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
ycow [4]
3 years ago
15

Given Triangle DEF is isosceles and angle D is the vertex angle, Find x, DE, DF, EF

Mathematics
1 answer:
ch4aika [34]3 years ago
4 0

Answer:

x=2;DE,EF=9,DF=5

Step-by-step explanation:

Since DEF is isoceles, you can set the equations

x+7 and 2x+5 equal to each other

x+7=2x+5, now solve for x

-x=-2,

x=2, now plug in for each side

DE,EF=9

DF=3(2)-1=5

You might be interested in
Which shape could be thought of as being created by stacking congruent polygons?
weqwewe [10]

Answer:

Rectangular prism

Step-by-step explanation:

Edge 2020

3 0
3 years ago
Find the missing angle according to the Triangle Exterior Angle Theorem
atroni [7]

Answer:

x=128°

Step-by-step explanation:

90+38=128

5 0
2 years ago
What is a solution for 11/12
elena-s [515]

Answer:

It is either 11/12 or 0.91666666667.....

Step-by-step explanation:

Because this can not be actually divided into a "number" like 2 or 5, we can only get a approximate. Like the top answer.

Round to the nearest ten is 0.9

Round it to nearest hundredths is 0.92

7 0
2 years ago
Having a hard time finding the area
Marina CMI [18]

Answer:

For the triangle, the area is 7.5 in.

For the trapezoid, the area should be 90 cm

Step-by-step explanation:

The formula for a triangle is A=1/2bh and for a trapezoid it is (a+b)/2×h

5 0
3 years ago
Rachel earned 34$, 34 in 4 hours at her job today
forsale [732]
If you're asking how much she made per hour, it would be 8.5$
6 0
3 years ago
Read 2 more answers
Other questions:
  • 5 less than three times a number is 10
    7·1 answer
  • london buys 3 more packs of trading cards today. each pack has 8 cards. write a multiplication sentence to show how many cards l
    8·1 answer
  • (a) How many integers from 1 through 1,000 are multiples of 2 or multiples of 9?
    7·1 answer
  • Add: (7x-6y)+(3x+3y-3)
    13·2 answers
  • Marc-Andre Fleury made saves on 27 of the first 29 shots in the hockey game Find experimental probability that he will make a sa
    5·1 answer
  • Round 35,678 to the nearest thousand
    7·2 answers
  • Is my answer actually incorrect and if so how?
    13·1 answer
  • What is the perimeter of the parallelogram?
    6·2 answers
  • 8. Gisele spins a spinner that has equally
    14·2 answers
  • jared has mowed 2/5 of the yard abby says that jason has mowed 4/6 of the yard is abby correct explain
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!