Find the height of an equilateral triangle with side length 8.

Answers

Answer 1

Answer:

U need to just do

[tex] \sqrt{3 \div 4} a {}^{2} [/tex]

Answer 2

Answer:

4[tex]\sqrt{5}[/tex]

Step-by-step explanation:

The segment from a vertex to the side opposite is a perpendicular bisector.

The equilateral Δ is divided into 2 right triangles with legs 8 and 4

let height be h, then using Pythagoras' identity

h² = 4² + 8² = 16 + 64 = 80 ( take the square root of both sides )

h = [tex]\sqrt{80}[/tex] = 4[tex]\sqrt{5}[/tex] ← exact value


Related Questions

Ms. Ringer asked her class, "What are the favorite colors of the students in our school?" Which student correctly describes Ms. Ringer's question?

Answers

Answer:

D

Step-by-step explanation: We know it's not A or B because a statistical question is a question that will vary. D has that exact response while C is not exactly what a statistical question is.

The student who correctly describes Ms. Ringer's question would say that it is an open-ended question.

What is an expression?

A term is composed of one mathematical expression. A single variable (a letter), a single integer (positive or negative), or a number of variables that have been multiplied but never added or subtracted are all examples of single variables. There is a number in front of certain words that are variables. A word or phrase is preceded by a coefficient.

Ms. Ringer asked her class, "What are the favorite colors of the students in our school?"

The student who correctly describes Ms. Ringer's question would say that it is an open-ended question,

as there are many possible answers to the question and it does not have a single, definitive answer.

To learn more about the expression;

brainly.com/question/24242989

#SPJ2

Is 4/5 greater than 9/19

Answers

Yes. I just did this question on a test actually

Given a line with a slope of 8 and a y-intercept of (0,-7), write the equation
of the line.

Answers

Answer:

y=8x-7

Step-by-step explanation:

which terms are like terms in the expression 5x + 9 + (-7x)

Answers

Answer:

5x and -7x

Step-by-step explanation:

they both end in the variable "x"

please anwser this for me!!

Answers

Answer:

No

Step-by-step explanation:

The relation given as represented by the table of values is definitely not a function. This is because, 1 domain value (x-value), is having two range values (y-values), 2 and 5, that are assigned to it.

A function cannot have two y-values assigned to one x-values.

Can somebody do this for me

Answers

Answer:

no

Step-by-step explanation:

1. because 2. i 3. said 4. so

A roofer leaned a 16-foot ladder against a house. If the base of the ladder is 5 feet from the house, how high up the house does the ladder reach?

Answers

Answer:

15.20feet

Step-by-step explanation:

Length of the ladder = 16foot (hypotenuse)

BAse of the ladder from the house = 5feet (adjacent)

height of the house = x (opposite)

Using the pythagoras theorem

hyp^2 = opp^2 + adj^2

16^2 = 5^2 + opp^2

256 = 25 + opp^2

opp^2 = 256-25

opp^2 = 231

opp =√231

opp = 15.20

Hence the house is 15.20feet high up the house

What is this number in standard form?
(8 X 100) + (4 x 1) + (6 x 1/100 ) + (3 x 1/1000)

Answers

Answer:

804.063

Step-by-step explanation:

just multiply each part and add

800 +4 +.06 +.003

804.063

Please help again!!!!!!!!

Answers

Answer:

94.077=90+4+0.07+0.007

Step-by-step explanation:

I hope this answered your question

Answer:

a) 94.077= 90+ 4+ 0.07 + 0.007

Step-by-step explanation:

I hope it helps you ❤❤

Help! ILL GIVE 20 + POINTS!!

For each sentence, drag a word that will make the statement true.
Words may be used once or more than once.

sometimes always never
Equilateral triangles are
acute triangles.

Scalene triangles are
acute triangles.

Right triangles are
acute triangles.

Obtuse triangles are
isosceles triangles.

Answers

Answer:

Below

Step-by-step explanation:

Always

Sometimes

Never

Always

Answer:

always,sometimes,never,always

Step-by-step explanation:

Equilateral triangles are  

always

acute triangles. Yes, because acute is always 60 degrees, and equilateral is basically your average triangle, so its corners have 60 degrees.

Scalene triangles are  

sometimes

acute triangles.      Scalene triangles always dont have that sharp corner..they sometimes do, the sharp turn which is 60 degrees, ACUTE IS ALWAYS 60 DEGREES.

Right triangles are  

never

acute triangles. A right angle cant be a acute, not 60 degrees..

Obtuse triangles are  

always  

isosceles triangles.  Isosceles means atleast 2 of the sides look the same, i included how to recognize obtuse, right,etc

The fastest car in the world can travel at a speed of over 250 miles every hour. This is about 4 times as fast as an average highway speed of 65 miles every hour.

Answers

Answer:

125

Step-by-step explanation:

What’s 6 divided by 3/5

Answers

Answer:

The answer to the question provided is 10.

What is the sum of 9.37- 6

Answers

3.37 because the 6 technically has a decimal behind it and so u line up the decimals and subtract

Pls I need help with 2 I’m begging I been stuck on it for a while pls have a good day pls I need help

Answers

Answer:

F

Step-by-step explanation:

You add 4.5 pages for every 1 minute, this is constant.


PLEASE HELP ASAP WORTH A LOT OF MY GRADE

Answers

Answer:

D

Step-by-step explanation:

Im almost positive its d because for triangles you multiply by radical two for when its 45 degrees then the side for the one part of the triangle would be 26 radical 2 multiplied by 39 to get 1397.243 then you double that to get d

HELP ME PLSSS HURRY Which of the following graphs show a proportional relationship?
Choose all answers that apply:
y
8-
6+
4+
2+
2
1.
6
8
y
000
B
4-
>
2+
+
2
4
6
8
None of the above

Answers

Answer:

A

Step-by-step explanation:

A cuz it's accelerate..........

Complete each ratio table.

Answers

Answer:

I only, know one of them....

Step-by-step explanation:

Select the equation where x = 6 is a solution.


A.6x = 66
B.6x = 1
C.7x + 2 = 15
D.5x = 30

Answers

Answer: D 5x=30

Step-by-step explanation

You just substitute 6 into the equations to see if they make the equation true.

Answer:

[tex]5x = 30 \: when \: x = 6[/tex]

D. 5x=30 is the right answer.

What is the simplified form of (3\4)exponet3 ? Enter your answer as a fraction by filling in the boxes.

Answers

Answer:

Calculator to simplify complex fractions; fractions that have numerators and denominators, each of which are a mixed number, fraction, or integer. Solutions are given to solve the complex fraction by LCD multiplication or as Enter Mixed Numbers, Fractions or Integers  Reduce fractions where possible163−615=163−25.

Step-by-step explanation:

Simplify the following expression:

3b+5-9b-9+6b

Answers

Answer:

3(3+2b)

or

2b +9

Step-by-step explanation:

Answer:

Step-by-step explanation:

3b+5-9b-9+6b

=3b+6b-9b+5-9=-4

There are 48 chicken farm, if each farm has a barns how many total are there?

Answers

48•9=432
There are 432 barns
if there are 48 chicken farms and each one has on barn, thatd be 48 time 1 so there are 48 barns too

How are (5.3,1) and (-5.3,1) related?

Answers

Answer:

i think because theyre like terms, im not sure tho

If the simple interest on $2,000 for 7 years is $840, then what is the interest rate?

Answers

Answer:

Step-by-step explanation:

7 years times 12 months = 70,560.00

Interest rates paid is/= 68,560.00

3% principal

97% interest

It is not possible to divide 22 by 0 because there is no you can ______ by 0 and get 22.

A. multiply
B. add
C. subtract
D. divide

Answers

Answer:

divide

Step-by-step explanation:

divide

..........................

Answer:

its A.multiply

Step-by-step explanation:

if you cannot divide than you cannot multiply

All of the following expressions have the same value except _____.
A. -16 ÷ -2
B. (-2)(4)
C. -16 ÷ 2
4. (2)(-4)

Answers

Step-by-step explanation:

A.-16÷-2

......................

©
x is two-third of y​

Answers

Answer:

x is two-third of y

[tex] \huge \boxed{x = \frac{2}{3} y}[/tex]

Sec x -tan x sin x =1/secx

Help me prove it

Answers

Answer:

L.H.S. = [tex]\frac{1}{cosx} -\frac{sinx}{cosx}sinx[/tex]

= [tex]\frac{1}{cosx} - \frac{sin^2x}{cosx}[/tex]

= [tex]\frac{1-sin^x}{cosx} = \frac{cos^2x}{cos x}[/tex]

= cos x = 1/secx

Step-by-step explanation:

Hey there!

Given;

sec x - tan x . sin x = 1/(sec x).

~ Taking LHS.

= sec x - tan x . sin x

= 1/(cos x) - (sin x/cos x) . sin x { Using formula sec x = 1/cos x and tan x = (sin x/cos x)}

~ Multiply (sin x) and (sin x).

[tex] = \frac{1 - { (\sin(x) )}^{2} }{ \cos(x) } [/tex]

~ Use formula 1-sin²x= cos²x

[tex] = \frac{ {cos}^{2} x}{ \cos(x) } [/tex]

~ Cancel cos x.

= cos x

= 1/sec x { cos x = 1/sec x}

→ RHS proved.

Hope it helps.....

what is 13+7x=27 pleae i really need help

Answers

Answer:

x=2 is the answer to this problem

Divide. Write your answer in scientific notation.
8 103
2 x 103

Answers

Answer: = 8.346296 × 106

Step-by-step explanation:

The wingspan is 8 inches on a plane. The wingspan of the actual airplane
is how many inches? What is the wingspan of the actual airplane in
feet?

Answers

Do I have a picture that goes with it probably it would help
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