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

Find the value of x and the measure of the angle labeled 16X".
112
64°
48°
16x

Answers

Answer:

[tex]16x = 48\:(vertically\:opposite\:angles)\\ \boxed{x = 3} \\ angle \: measure \: is \: \boxed{48°}[/tex]

A. is the right answer.

Answer:

A

Step-by-step explanation:

Which algebraic expression is not equivalent to 13x + 10? A 10(x + 1) + 3x B. 4x + 3 + 8x + 7 C. 13 + 2x + 3x – 3 + 8x D. 20x-2 - 7x + 12​

Answers

Answer:

B is the answer

Try all and see for yourself

The Heyde family went to the zoo. There are 2 adults and 3 children. Admission to the zoo is $22.00 for adults and $15.00 for children. How much did the family spend to enter the zoo?

Answers

Answer:

$89.00

Step-by-step explanation:

(2*22)+(3*15)= 89

Graph a line with a y-intercept of -3 and a slope of 43 .

Answers

Answer: HERE IS THE GRAPH AND PLS CORRECT ME IF I"M WRONG :)

Step-by-step explanation:

An online book store has 182 boxes of books in its warehouse. Each box has 32 books.

Part A
Which equation represents the best estimate of the total number of books in the warehouse?
180 × 30 = 5,400
180 × 40 = 7,200
190 × 40 = 7,600
200 × 40 = 8,000
Part B
Is the best estimate in Part A an underestimate or an overestimate? Explain.

It is an underestimate. The rounded value for 182 is less than 182, and the rounded value for 32 is less than 32. The estimated product must be less than the exact product.

It is an overestimate. The rounded value for 182 is greater than 182, and the rounded value for 32 is greater than 32. The estimated product must be greater than the exact product.

It is an overestimate. The rounded value for 182 is greater than the rounded value for 32. The estimated product must be greater than the exact product.

It is an underestimate. The rounded value for 32 is closer to 32 than the rounded value for 182 is to 180. The estimated product must be less than the exact product.

Answers

part a:
180 x 30

part b:
underestimate. the rounded value is less than the original number

Answer:

Part is A. Part B is underestimate. Part C (for the choose drop-off boxes are these: 1# < 2# < 3# <

Step-by-step explanation:

I took the test, hope it helps.

Write an expression, using an exponent that is equivalent to 6 x 6 x 6 x 6 x 6.

Answers

Answer:

6^5

Step-by-step explanation:

put the 5 and make it tiny on top of the 6

Answer:

6^5 to give u the same thing as 6×6×6×6×6×6

Can some one help me please

Answers

Answer:

B

Step-by-step explanation:

x+2+10 is 13 which is the beginning of the perimeter

I think it’s B I’m not for sure

After years of maintaining a steady population of 32,000, the population of a town begins to grow exponentially. After 1 year and an increase of 8% per year, the population is 34,560. Which equation can be used to predict, y, the number of people living in the town after x years? (Round population values to the nearest whole number.)

y = 32,000(1.08)x
y = 32,000(0.08)x
y = 34,560(1.08)x
y = 34,560(0.08)x

Answers

Answer:

I THINK UTS A            y = 32,000(1.08)x

Step-by-step explanation:

Answer:

TS A            y = 32,000(1.08)x

Step-by-step explanation:

what is lcm for 30,42

Answers

Answer:

[tex]210[/tex]

Step-by-step explanation:

30: 30, 60, 90, 120, 150, 180, 210

42: 42, 84, 126, 168, 210

Answer:

210

;-;

You are running a concession stand at a basketball game. You are selling hot dogs and
sodas.Each hot dog costs $1.50 and each soda costs $ 0.50. At the end of the night, you made a total of
$78.50. You sold a total of 87 hot dogs and sodas combined. You musſt report the number of hot dogs
sold and the number of sodas sold. How many hot dogs were sold and how many sodas were sold?

Answers

Answer: 52

Step-by-step explanation: Friend me and yes that is right!

What are the names of these polygons?

Answers

Answer:

1)Quidrilateral

2)Pentagon

Abjejwjjdjejwjdhhrigvhhyrwwtiij itessfjhvxx

Answers

sjdjdkzjdkdncmdkdjfnkrmd, sjdjdjdjd dkdkcekdkdk djdjjdkdjdj ..

You are your friend are playing a game where you flip a coin and roll a fair four-sided die.

Answers

What about it?????????

Answer: is this the best ratio question

Step-by-step explanation:

Estimate 95.63+66.552 by first rounding each number to the nearest whole number

Answers

Answer:

162

Step-by-step explanation:

95.63 rounds up to 96

66.552 stays at 66

96+66=162

I just need #1 plzzzz if you can do #2 and #3 as well I also need the work!! 20 points

Answers

#1 would be 12 cm as the actual length of the thermos! This is because the scale given is 1:3 right? if you find what number 1 is multiplied by to get 3, you will obviously have 3. then, the given length of the thermos would be multiplied by 3, so it would be 3 x 4, which would be 12!

-8th grader

complete the equation of the line whose slope is -2 and y-intercept is (0,-8)

y= ????​

Answers

Answer:

y = -2x - 8

Step-by-step explanation:

Slope-intercept form is y = mx + b. Slope is m, and y-intercept is b. To do this, we substitute -2 for m and -8 for b. When we do this, we get y = -2x + -8. We can simplify this to y = -2x - 8.

A triangle has one angle that measures 42°. Which of the following could be the measures of the other two angles?(1 point) 54° and 84° 42° and 42° 90° and 58° 102° and 216°

Answers

Answer:

54° and 84°

Step-by-step explanation:

i just took test

A line passes through the point (0,2) and has a slope of -1/4. What is the equation of the line

Answers

Answer:

Step-by-step explanation:

use point-slope formula [y-y1 = m(x-x1) ] with the given info

P=(x1,y1) = (0,2)  and slope m = -1/4

y-2=-1/4(x-0)

y-2= -1/4x

now try to move things till you get the slope-intercept form [y=mx+b]

y= -1/4x+2

good all done :)

simplify the expression t+2+6t

Answers

Answer:

2+7t

Step-by-step explanation:

combine like terms

t+2+6t

2+7t

10•1/2+(-6)(-3) Simplified in steps

Answers

Answer:

23

Step-by-step explanation:

1)  (10*0.5)+(-6*-3)

2) (5)+(18) (The 18 isn't negative because of the rule that states "A negative and a negative will become positive"

3) 5+18=23

In Progress
What is an equation in slope-intercept form of the line that passes through the points (-2,-2) and (1,7)?
A.
y
C-
B. y = 3.0 +4
=
+
olos
O D. = 3.c – 2

Answers

Answer: y= D.3x-2

Step-by-step explanation:

The answer is “B. y = 3x + 4”

Explanation:

To find the slope of two points, we need to use the formula m=rise/run or m=y2-y1/x2-x1

-2-7 -9
m = ——— = — = 3
-2-1 -3

Now we have to find “b” as in the equation “y=mx+b”

We already have our “m” which is the slope and that is equal to 3

In order to fine “b,” we have to set it up in point slope form which is the formula
“y-y1 = m(x-x1)”

You can choose to set this up with either one of the coordinates given

In this problem, the coordinates given are
(-2, -2) and (1, 7)

I’m going to use the coordinates (1, 7)

y-y1 = m(x-x1)
y-7 = 3(x-1)

The “7” is the y point
The “3” is the slope
The “1” is the x point

Now we simplify the equation:

y-7 = 3(x-1)
y-7 = 3x-3
+7 +7
—————
y = 3x + 4

Hope this helps and makes sense :)

Does this procedure describe a completely randomized design for this experiment?

Answers

Answer:

Yes

Step-by-step explanation:

please i need help:/

Answers

Answer:

92

Step-by-step explanation:

for each sale, the number of tokens increases by a pattern from 1 sale to 2, the tokens increase by 7. next by 9. next by 11. if this pattern continues, by eaight sales the number of tokens will be 92 tokens

5 -41 tokens

6 - 56 tokens

7 - 73 tokens

8 - 92 tokens

this is my best guess at the problem, if you aren\t working with sequences then this is probably wrong

answer ?????????????

Answers

Answer:

x-2

Step-by-step explanation:

The school store sells pens for $0.70 each and pencils for $0.30 each. Anthony spent $2.70 to buy a total of 5 pens and pencils.How many pencils
did Anthony buy? ___ pencils

Answers

Answer:

Pencils=2

Step-by-step explanation:

Pencils-n

-0.70 - 0.70 = -3.5

0.70p + 0.30 = 2.7

-0.4n = -0.8

-0.4      -0.4

n=2

4. Jensky is scuba diving while on vacation. Yesterday,he drove to -13.74 feet. Today,he plans to go 4 times as deep. How far is Jensky planning to dive today?


a) - 54.96 ft
b) - 17.74 ft
c) -9.74 ft
d) - 3.44 ft

Answers

The answer is A it’s simple math

help easy alll you have to do is drag arrows wich i will be doing to the finish line have any questions comment!!!

Answers

Answer:

tyreagdfasgavgcrec

Step-by-step explanation:

aerbygrsyhbrsvd

how do i write an equation in point-slope form for a horizontal line that passes through(4, –2)??

Answers

Answer:

[tex]y = -2[/tex]

Step-by-step explanation:

Given

Horizontal Line

[tex](x_1,y_1) = (4,-2)[/tex]

Required

Determine the equation

The equation is calculated using:

[tex]y - y_1 =m(x-x_1)[/tex]

Where

[tex]m = slope[/tex]

Because the line is a horizontal line, then:

[tex]m = 0[/tex]

Substitute 0 for m and values for x1 and y1 in [tex]y - y_1 =m(x-x_1)[/tex]

[tex]y - (-2) = 0(x -4)[/tex]

[tex]y +2 = 0(x -4)[/tex]

[tex]y +2 = 0[/tex]

Subtract 2 from both sides

[tex]y +2-2 = 0-2[/tex]

[tex]y = -2[/tex]

Hence, the equation is: [tex]y = -2[/tex]

PLEASE HELP!!!! Based on the model, approximately how many cups of tea can Christina expect to sell during the eighth hour?

Answers

Answer:

where is the picture

Step-by-step explanation:

Answer:

175

Step-by-step explanation:

plato/edmentum

Suppose you have a $15 coupon that can be used on any purchase over $100 at your favorite clothing store. The discounted price of a sports jacket is $203. What is the retail price of the jacket?
a.
$235.70
b.
$303.00
c.
$188.00
d.
$218.00

Answers

the answer is C , $188.00 have a good day
Other Questions
Which of the following belongs in the empty box What is a benefit that CERT volunteers report after they complete training? A. Faster emergence response service for their family B. Knowing who to call when the power goes out C. Confidence they can protect themselves and others and minimize property damage D. Ability to fight house fires Help please help desperate due today.. ANSWER FIRST AND U GET WHATEVER U WANT a first number plus twice a second number is 4. twice the first number plus the second number totals 26. find the numbers Matteo is following this recipe to make a cake. He wants to make three of these cakes.How much of each ingredient does he need?Recipe: Makes 1 cake 8 ounces butter 7 ounces sugar 10 ounces of flour 4 eggs 1 teaspoon (tsp) baking powder Balancing Equations Fe + O2 --> Fe2O3 I know what it means I just want to see if you do. Free PonitsQue tengas un gran dia solve for w. 7w=-14please help me with this one plz Which of the following is a run-on sentence?ATaylor put on his rain boots before he went outside.BThe sky was clear, but the air was still misty and wet.CIt had rained all night, so the street was full of puddles.DTaylor found the first big puddle he stomped and splashed with glee. Which political party believes in small (less) government? Simplify the expression:k3k+5k Can someone help me do this its an emergency n + 10 = 8 + 4find the value of n. A set of data is summarized by the stem and leaf plot below. Stem Leaf1 0 0 2 2 4 5 5 5 6 7 8 8 9 9 9 92 0 0 0 3 3 4 5 8 83 0 0 1 1 3 4 5 5 5 6 6 6 6 7 7 8 8 8 9 94 1 2 2 3 3 3 5 5 6 6 7 8 8 9 9The value 52 appears _________time(s) in the data set. The value 47 _________appears time(s) in the data set. What did Jake do to save them time to get to Chichen Itza?barrowed a bikerented a cartraded for a tireran What do the C major, C sharp major and C flat major scales have in common? Tobacco use can lead to which of the following The line models the temperature starting at noon on an autumn day.a. Find the y-intercept of the function. b. What does the y-intercept represent?please help! (i will insert a picture so you can see the graph) what are the coordinates of the point ? SHOW STEP BY STEP