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
Scorpion4ik [409]
3 years ago
11

The figure shown is an equilateral triangle. Calculate the length of each side and give your answer in cm.

Mathematics
1 answer:
cricket20 [7]3 years ago
4 0
Given at you have an equilateral triangle, all sides have the same length.

Therefore,
First side 2x-7 = Second side x+y-9 = Third side y+5

Let us look at the second and third sides for now:
x+y-9 = y+5
x = y+5 - (y-9)
x = y-y+5+9
x = 14

Then we look at equating the first and third sides:
2x-7 = y+5
y = 2x-7-5

Substitute x =14 in the equation above:
y = 2(14)-7-5
= 28-7-5
= 21-5
= 16

The length of the third side is:
y+5 = 16 +5 = 21

Given that the length of each sides are the same in an equilateral triangle, all sides have the length 21cm.
You might be interested in
How do I do number 7 please help me with
riadik2000 [5.3K]
There is a Khana Academy video that explains everything you have to do and it’s the same page that you’re on
3 0
3 years ago
The value of 4 + 44/10 + 404/100 +
nydimaria [60]

Answer:

12.8844

the answer is (a)12.8844

4 0
2 years ago
Read 2 more answers
Your on a roller coaster your velocity is 13 ft./s are you moving up or down what is your speed
vladimir1956 [14]

Your speed is 13 ft/sec.  In order to know our velocity, we would need to know what direction we're moving.  You haven't told us anything about our direction, only that our speed is 13 ft/sec.
8 0
3 years ago
Please help its due in 1 hour it would be best if you show work
aleksley [76]

Answer:

1:quadrant 1

2:quadrant 1

3:quadrant 2

4:quadrant 3

5:quadrant 1

6:quadrant 4

7:Z and quadrant 2

8: F and quadrant 1

9:A and quadrant 4

10: R and quadrant 4

11: N and quadrant 2

12: Q and quadrant 3

13a:the clock

13b:wonder wheel

13c:big coaster

13d: -1,2

Good luck

6 0
2 years ago
The sum of the measures of the angles of a triangle is 180°. The middle-sized angle measures 3° more than 2 times the smallest a
Anit [1.1K]

Answer:

13° , 29° , 138°

Step-by-step explanation:

let x be the smallest angle , then

2x + 3 is the middle angle and

2x + 3 + 109 is the largest angle

summing the 3 angles and equating to 180

x + 2x + 3 + 2x + 3 + 109 = 180 , that is

5x + 115 = 180 ( subtract 115 from 180 )

5x = 65 ( divide both sides by 5

x = 13

2x + 3 = 2(13) + 3 = 26 + 3 = 29

2x + 3 + 109 = 29 + 109 = 138

the 3 angles are 13° , 29° , 138°

6 0
2 years ago
Other questions:
  • Zak uses repeated subtration to find 48\8 .How many groups of 8 doeszak subtract
    14·1 answer
  • Place commas in the number 4978.
    11·2 answers
  • Write a two-column proof. Given: Triangle ACD is isosceles; <1 is congruent to <3 Prove: Segment AB || Segment CD
    7·1 answer
  • The binary string 01000110001000 is a floating-point number expressed using the 14-bit simple model given in your text. (There a
    6·1 answer
  • What is 4/9 divded by 1/3
    7·2 answers
  • A rectangle garden has a length that is six feet more than twice it’s width. It takes 120 feet of fencing to completely enclose
    13·1 answer
  • Please help! Evaluate the following function.<br> f(x) = -x – 8 for f(-1)
    11·1 answer
  • What is the lower bound of 8000? someone help me pleaseeee
    15·2 answers
  • How many centimeters are equal to 5 inches?
    14·2 answers
  • PLEASE ANSWER ASAP!!!!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!