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


Mrs. Rodrigues was selling two kinds of raffle tickets for $1.50 and $3.50. The number of $1.50 tickets sold was 5 more than three times the number of $3.50 tickets sold. She earned a total of $1,607.50. How many $1.50 tickets were sold?

$1.50 tickets

Answers

Answer:

605

Step-by-step explanation:

Answer:

the answer would be 605!!!

Step-by-step explanation:

hope this helps!!

what number is 0.001 more than 437.999

Answers

Answer:

437.999 + 0.001 = 438

Step-by-step explanation:

i need help pls help me

Answers

Answer:

8

Step-by-step explanation:

Taylor bought a painting for 1 million yen while in Japan. At the time, exchange rate was 1 dollar to 126 yen. If a friend offers $2,000 dollars for the painting would Taylor profit?

Answers

Answer:

No, she would not profit.

Step-by-step explanation:

1 dollar = 126 yen

x = 1000000 yen

1000000 ÷ 126 = $7, 936.51

$2,000 is not enough to cover the value of the painting as Taylor would lose over $5,000. So, she would not profit.

Hope that helps.

The following data points represent the number of students in each teacher's class at Dodger Middle School. Sort the data from least to greatest. 21 14 23 15 17 22 14 21 Find the median class size. students​

Answers

Answer:

i think 19

Step-by-step explanation:

Answer:

The answer is 19.

--------------------------------

Least To Greatest

--------------------------------

14, 14, 15, 17, 21, 21, 22, 23.

Step-by-step explanation:

The blue segment below is a radius of 0. What is the length of the diameter
of the circle?

Answers

B, the answer is 21.2

Which of the following correctly shows the distributive property?
A 4(x + 5) = 5(x + 4)
B
4(x + 5) = (4)(x) + 5
с
4(x + 5) = x + (4)(5)
D
4(x + 5) = (4)(x) + (4)(5)


Plsssss I need help

Answers

The distributive property is when you use the number on the outside of the parentheses to multiply the numbers on the inside of parentheses. This is usually used when the option is given and there is a variable inside.

Now onto the question, 4(x + 5)

We can actually break this down into parts so it’s not just one thing.

(4)(x) + (4)(5) would be the broken down form.

Thus, the answer to your question is:
D. 4(x + 5) = (4)(x) + (4)(5)

Jessica is walking home from a friend's house. After two minutes she is 0.8 miles from home. Eight minutes after leaving, she is 0.3 miles from home. What is her rate in miles per hour?

Answers

6mph 6mph gotchu bro

That problem bc I know how to tofu it but I want to make sure

Answers

Answer:

Step-by-step explanation:

[tex]5c^{2}[/tex] +2c -3

Answer:

Here,

[tex]5c {}^{2} + 7c - 5c - 3[/tex]

Now,

[tex]5c {}^{2} \ + 2c - c[/tex]

Hence, it is the simplified form.

help don't answer if you don't know​

Answers

Answer:

not 100% confident but I think this is at least close

Step-by-step explanation:

solve for one variable

1. x-5y=2

x=2+5y

plug this in to another equations and simplify

2. (2+5y)-y=16

2+4y=16

4y=14

y=3.5

this can be plugged in to all other equations to find x

1. x-5(3.5)=2

x-17.5=2

x=19.5

2. x-(3.5)=16

x=19.5

3. 2x-(3.5)=5

2x=8.5

x=4.25

4. x-3(3.5)=4

x-10.5=4

x=14.5

Can anyone help me with these? PLEASE!!!

Answers

I can’t see them good try taking the pictures better please

State the segment that represents the image, based on the information given.

Answers

Answer should be D. CPA

The clockwise rotation of  ΔAPG about 90 degree gives ΔCPA.

What is Rotation?

Each point in a figure is transformed into a rotation by rotating it a specific amount of degrees around another point.

Given:

We have ΔAPG.

Now, we have to rotate about 90 clockwise rotation.

Then, ΔAPG will overlap on ΔCPA

Hence, the clockwise rotation of  ΔAPG about 90 degree gives ΔCPA.

Learn more about Rotation here:

https://brainly.com/question/1571997

#SPJ2

Please help me. Thank you...

Answers

9514 1404 393

Answer:

  V = (x)(10-2x)² . . . . factored form

  V = 4x³ -40x² +100x . . . . standard form

Step-by-step explanation:

A square with corners cut out has no volume. It is a plane figure.

__

We presume you are interested in the volume of the open-top box obtained by folding up each "ear" of the cut figure. The length of each side of its square bottom is 10-2x. The depth of the box is x. So, the volume is ...

  V = LWH = (10-2x)(10-2x)(x)

  V = x(10 -2x)²

_____

The graph shows the volume is a maximum when x = 1 2/3 cm.

Photo attached please help

Answers

Answer:

A

Step-by-step explanation:

Multiply:

[tex](\frac{5}{5+\sqrt{10x} } )(\frac{5+\sqrt{10x} }{5+\sqrt{10x} } )[/tex]

Simplify:

[tex]\frac{5(5-\sqrt{10x}) }{(5+\sqrt{10x})(5-\sqrt{10x} ) }[/tex]

Factor:

[tex]\frac{5(5-\sqrt{10x}) }{25-10x}[/tex]

Reduce:

[tex]\frac{5(5-\sqrt{10x}) }{5(5-2x)}[/tex]

Solution:

[tex]\frac{5-\sqrt{10x} }{5-2x}[/tex]

In ΔIJK, k = 26 cm, ∠I=135° and ∠J=11°. Find the length of i, to the nearest centimeter.

Answers

Answer:

33 cm

Step-by-step explanation:

Given

Triangle IJK with:

Side k = 26 cm, ∠I = 135°, ∠J = 11°To findThe length of side iSolution

Find angle K:

∠K = 180° - (135° + 11°) = 34°

Use the low of sines to findthe value of i:

i/sin I = k/sin Ki = k sin I / sin Ki = 26 * sin 135° / sin 34° = 33 cm (rounded to the whole number)

Can someone PLEASE answer 5 and 6 for me?this assignment is due in a few minutes

Answers

Answer:

Yes they are equivalent because if you divide 18 by 6 it is 3 and if you do the same for 21 and 7 it also equals 3 which means they get paid 3 per hour

As for 6 they are not bec if we do the same from to 6 220/25=8.8 and 90/10=9 meaning they don’t have the same feet to inches

Step-by-step explanation:

I hope this helps and I’m not to late.

After spending $19 dollars, Issac had twice as much money as Lara.
If Lara had $27, how much money did Issac have at first?

Answers

Answer:

73

Step-by-step explanation:

yes it is 73dddfmsmxk

which expression is equivalent to 18x + 9y - 6?

answers:
A. 9(2x - y + 3)
B. 3(6x + 3y -2)
C. 2(9x + 3y - 2)

Answers

B . the answer is B!!

So can someone just kinda do these

Answers

Answer:

1.) -5/4

2.) 2

3.) 7/3

4.) 4

5.) -6

6.) -1

7.) 5/3

8.) -4

9.) 2

Step-by-step explanation:

this is what i got i hope they are all right

slope formula: (y2 - y1) / (x2 - x1)

find the slope thanks ​

Answers

Answer:

Hello! Just here so the other person can get brainliest. I will do the same for the other questions.

Step-by-step explanation:

Round 0.381 to the nearest hundredth.
0.3
0.38
0.4
0.39

Answers

Answer:

0.38

Step-by-step explanation:

Answer:

0.38

Step-by-step explanation:

TIME SHEET - ACTIVITY 1


Ajax Manufacturing, Inc.

300 South Detroit Ave.

Anytown, OH 85226


Employee Name:________________________________


Date Start Time End Time Time Away Regular Hours

Dec. 1 8 a.m. 4:30 p.m. ½ hour 8










Overtime hours (hours over 40)

Can someone please help ASAP i have the time sheet if you need it :))

i will mark you brainiest


Here are Rick's hours of work:

On Dec. 1, Rick worked from eight o’clock a.m. to half past four o’clock p.m. He took a half-hour lunch break. (Completed for you.)
On Dec. 2, Rick worked from eight o’clock a.m. to half past four o’clock p.m. He did not take a lunch break.
On Dec. 3, Rick worked from eight o’clock a.m. to five o’clock p.m. He took a half-hour lunch break.
On Dec. 4, Rick worked from half past seven a.m. to half past four o’clock p.m. He took a half-hour lunch break.
On Dec. 5, Rick worked from seven o’clock a.m. to five o’clock p.m. He took a one-hour lunch break.
On Dec. 6, Rick worked from eight o’clock a.m. to noon. He did not take a lunch break.
On Dec. 7, Rick did not work.










Here are Rick's hours of work:

On Dec. 9, Rick worked from half past seven o’clock a.m. to half past four o’clock p.m. He took a half-hour lunch break.
On Dec. 10, Rick worked from seven o’clock a.m. to half past four o’clock p.m. He took a half-hour lunch break.
On Dec. 11, Rick worked from half past eleven o’clock a.m. to five o’clock p.m. He did not take a lunch break.
On Dec. 12, Rick worked from half past seven o’clock a.m. to half past five o’clock p.m. He took a one-hour lunch break.
On Dec. 13, Rick worked from half past seven o’clock a.m. to seven o’clock p.m. He took a one and a half-hour lunch break.
On Dec. 14, Rick worked from eight o’clock a.m. to five o’clock p.m. He took a one and a half-hour lunch break.
On Dec. 15, Rick did not work.

Answers

time sheet 1:

dec 1 is 8 hours

dec 2 is 8.5 hours

dec 3, is 8.5 hours

dec 4 is 8.5 hours

dec 5 is 8. 5 hours

dec 6 is 4 hours

all together is 46 hours

so overtime is 6 hours

timesheet 2:

dec 9 is 8.5 hours

dec 10 is 8.5 hours

dec 11  is 5.5 hours

dec 12 is 9 hours

dec 13 is 10 hours

dec 14 is 7.5 hours

total hours is 49 hours

over time is 9 hours

A customer wants to book a room with a seaview.
You show her 4 options but only 3 have sea views.
What fraction has a seaview?

Answers

3/4 is the fraction

lol

9. What is the degree of the polynomial (x - 1)(x + 2)(2x - 3)?
A. 4
B. 3
C. 2
(explain please) ​

Answers

Answer:

coefficient of the term of degree 4 in this polynomial is 3

Step-by-step explanation:

The answer is B.
I’m a goat and that’s the ans

Mr. Cohen used 25 kilograms of fertilizer on his lawn. The fertilizer contained 4 kilograms of nitrogen. What percent of the nitrogen was in the fertilizer that Mr. Cohen used?

Answers

Answer:

The answer to this question is the percentage of the nitrogen is 17%

[tex]\frac{1}{2} x \frac{3}{4}[/tex]

Answers

I am pretty sure it is0.375

Can someone check this one for me if this is right? Which best explains why the given lines are or are not parallel?
x=-4,x=1

Answers

Pretty sure it could be B

answer : the answer is a

1. A store sold 700 motorcycles last year. This year the store sold 820 motorcycles. What is the percent change in the number of motorcycles sold from las year to this year?​

Answers

Answer:

120 or 120%, hope this helps!

Step-by-step explanation:

find the sum.

Please please please help me!!



Answers

Answer/ explanation:

3a + 4

a + b

Solve the equation. 2/3 t=4/5


A. t= 2/15


B. t= 8/15


C. t= 1 and 1/5


D. t= 1 and 7/15

Answers

Answer:

it's C.

Step-by-step explanation:

make it braintliest please

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