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
Art [367]
3 years ago
10

An equilateral triangle has a perimeter of 42. What is it's height?

Mathematics
2 answers:
Llana [10]3 years ago
4 0
That person that answered your question is right
katrin2010 [14]3 years ago
3 0

Answer:

Given that: The perimeter of the equilateral triangle is 42 inches. Side of the triangle=Perimeter/3=42/3=14 inches. The height of the triangle is 12 inches

Step-by-step explanation:

12 inches hope it helps

You might be interested in
Sara is working on a Geometry problem in her Algebra class. The problem requires Sara to use the two quadrilaterals below to ans
zloy xaker [14]
Part A:

Given a square with sides 6 and x + 4. Also, given a rectangle with sides 2 and 3x + 4

The perimeter of the square is given by 4(x + 4) = 4x + 16

The area of the rectangle is given by 2(2) + 2(3x + 4) = 4 + 6x + 8 = 6x + 12

For the perimeters to be the same

4x + 16 = 6x + 12
4x - 6x = 12 - 16
-2x = -4
x = -4 / -2 = 2

The value of x that makes the <span>perimeters of the quadrilaterals the same is 2.



Part B:

The area of the square is given by

Area=(x+4)^2=x^2+8x+16

The area of the rectangle is given by 2(3x + 4) = 6x + 8

For the areas to be the same

x^2+8x+16=6x+8 \\  \\ \Rightarrow x^2+8x-6x+16-8=0 \\  \\ \Rightarrow x^2+2x+8=0 \\  \\ \Rightarrow x= \frac{-2\pm\sqrt{2^2-4(8)}}{2}  \\  \\ = \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{-28}}{2}  \\  \\ = \frac{-2\pm2i\sqrt{7}}{2} =-1\pm i\sqrt{7}

Thus, there is no real value of x for which the area of the quadrilaterals will be the same.
</span>
7 0
3 years ago
I’ll give brainliest please help
Angelina_Jolie [31]

Answer:

130

Step-by-step explanation:

91 is 70 percent of the price

70% of 130 is 130*0.7 = 91

5 0
2 years ago
for a family picnic, Akeela wants to buy the same number of bratwurst and buns. The bratwurst come in packages of 6, and the bun
kogti [31]
3 buns and 4 bratwurst
4 0
3 years ago
Which graph shows the solution to the inequality -3x-7 &lt;20?
tensa zangetsu [6.8K]

Answer:

20

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The perpendicular bisector of a line segment is a line perpendicular to the segment that passes through its midpoint. What is th
adoni [48]

Answer:

y = 1/3 x.

Step-by-step explanation:

The slope of the given line is

(4 - (-2) / 2 - 4)

=   -3.

So the slope of the line perpendicular to it = -1 / (-3) = 1/3.

This line also passes through the point (3, 1) so its equation is ( by the point-slope form):

y - 1 = 1/3(x - 3)

y - 1 = 1/3x - 1

y = 1/3 x (answer).

hope that help you mark me brinilylist

8 0
2 years ago
Other questions:
  • What are all the multiples of 12?​
    9·1 answer
  • How many kilograms are equal to 5,000grams?
    9·2 answers
  • Solve: 3 1/3 + (-2 1/4) + 1 5/6 =
    11·1 answer
  • (x - 8) 2 + (y + 2) 2 = 64.
    10·2 answers
  • At Camille's Hats, 70% of the hats in the store are baseball caps. If there are 28 baseball caps, how many hats are in the store
    9·2 answers
  • In what quadrant is the terminal side<br> of -323°?
    14·2 answers
  • Factor the quadratic expression completely.<br> -7x^2-24x-9
    11·1 answer
  • There are men and women at a meeting.
    14·2 answers
  • Please advise, I need help with this equation
    8·1 answer
  • Which graph represents a bike traveling at a constant rate of
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!