Mathematics High School

The figure below is a net for a triangular pyramid.
If all the triangles are equilateral, what is the surface area of
the pyramid, in square centimeters?

The Figure Below Is A Net For A Triangular Pyramid.If All The Triangles Are Equilateral, What Is The

Answers

Answer 1

Answer:

339.36 cm^2

Step-by-step explanation:

14*12.12=169.68

169.68/2=84.84

84.84= the area of one triangle

(84.84)4=339.36

I'm pretty sure, but check my math if it's wrong

Related Questions

A party store sold a total of 4,032 balloons since they open 42 days ago.they sold the same amount of balloons each day how many balloons did the party store sell each day since it opened?
A 86 balloons
B 90 balloons
C 92 balloons
D 96 balloons

Answers

The answer is D)96 balloons

Answer:

D)

Step-by-step explanation:

Sana maka tulong po

shout out tga pagadian

please tell me where to plot the points and what the solution will be.

Answers

The graph would look like this...

A compact disc is designed to last an average of 4 years with a standard deviation of 0.8 years. What is the probability that a CD will last less than 3 years?

A- 1.11%, B - 10.56%, C - 86.65%, D - 100%

Answers

Answer:

the answer is B.........................

Write 3^4 in expanded form. (3^4 means 3 raised to the fourth power.)

A: 3x3
B :3x3x3
C: 3x3x3x3
D: 3x3x3x3x3

Answers

Answer:

c because 3.3.3.3 is 3 to the 4th power expanded

1/5 x 11 simplified if can

Answers

Answer:

2.2

Step-by-step explanation:

Answer:

11/5

Step-by-step explanation:

Plz help is it the same?

Answers

Answer:

12.054 < 12.54

Step-by-step explanation:

12.054 is less than 12.54 because it has a zero in the tenths place, and 12.54 has a five in the tenths place! Always check the first spot after the decimal first. Best of luck<3

Answer:

12.054 < 12.54

Step-by-step explanation:

Enter values to complete the table below.

Please help me.

Answers

Answer:

6

0

2

Step-by-step explanation:

I assume we are taking the y-value and dividing it by x, as indicated by the y/x

-6/-1

6

0/1

0

6/3

2

Prehistoric cave paintings were discovered in a cave in France. the paint contain 25% of the original Carbon-14. Use the exponential decay model for carbon-14, A=A0e^-0.000121t to estimate the age of the paintings

Answers

Answer:

The age of paintings is - 26,601 years .

Step-by-step explanation:

Lets calculate-

A= [tex]0.25 A[/tex]o

Therefore ,

[tex]A= A[/tex]o [tex]e^-^0^.^0^0^0^1^2^1^t[/tex]

[tex]ln0.25=-0.000121t[/tex]

[tex]-3.2188=-0.000121t[/tex]

[tex]t=\frac{-3.2188}{-0.000121}[/tex]

  t= 26,601.65

Therefore , the age of paintings is 26,601 years old.

EH is a diameter is D. The measure of EF is (10x + 8) and the measure of GH is (11x). What's the value of X

Answers

Answer:

x = 5°

EF = 58°

GH = 55°

Step-by-step explanation:

From The diagram :

Recall ; Angle on a straight line = 180°

This means :

EF + FG + GH = 180

EF = (10x + 8)°

GH = (11x)°

FG = 67°

HENCE;

10x + 8 + 11x + 67 = 180

21x + 75° = 180°

21x = 180 - 75

21x = 105

x = 105 / 21

x = 5

EF = 10x + 8 = 50 + 8 = 58°

GH = 11x = 11 * 5 = 55°

A gift box has the shape of a rectangular prism. How much wrapping paper do you need to cover the​ box?

Thanks in advance!

Answers

Answer:

852 inches square

Step-by-step explanation:

2×(16×15 + 16×6 + 15×6)

Answer:

652 in²

Step-by-step explanation:

The formula is 2(wl+hl+hw)

h is height

w is width

l is length

Use PEMDAS/BIDMAS/BODMAS (do the parentheses then multiply it)

326*2 = 652

add your units

652 in^2

y= 2x-3
y= x+4
Graph each system and determine the number of the solutions that it has. If it has one solution, name it.

Answers

x=7
y=11
basically just put the equations together because they are both equal to y

2x-3 = x+4
then just evaluate that and you’ll find x
after just input the answer into one of the equations and then you get your answers
i hope this help!!

A 3-cup container of disinfectant costs $1.92. What is the price per fluid ounce?

Answers

Answer:

Its cost about 1.5625

if you rounded its 1.56 :)

Step-by-step explanation:

Evaluate the expression for the given value.

2w+2l, when w=7, l=5

Answers

Answer:

2w+2l.

2(7)+2(5).

14+10.

24.

Solve the inequality
*
2x^2+ 5x – 3 < 0.

Answers

Answer:

heres the answer I think

Step-by-step explanation:

-3 < x < 1/2

find the volume of the 2 dice if the length of the base of the cube is 4cm

A) 64cm cubed
B) 96cm cubed
C) 108cm cubed
D) 128cm cubed​

Answers

Answer:

I think the answer is A 64cm cubed

Please help, GodBless.

Answers

Answer:

m = - 6 :)

Step-by-step explanation:

How to write 8,99,999 in international system. I want this number but in words of international system

Answers

8,99,999 in international system:-

899,999= Eight hundred ninety-nine thousand nine hundred ninety-nine

WILL GET BRAINLIEST The scatterplot shows the weight and miles per gallon of the nation's 40 best-selling cars.
Vehicle Weights and Miles
Per Gallon
Miles Per Gallon
Vehicle Weight
Which statement is most strongly supported by the scatterplot?

Answers

The last one as we can see that as the wight increases, the miles per gallon decreases.

A ship sails 20 km due East, then 12 km due South.

Find the bearing of the ship from its initial position.

Give your answer correct to 2 decimal places.

Answers

Answer:

Step-by-step explanation:

20km east - 12km south= 8km east

Answer:

its 120.96

Step-by-step explanation:

i dont have any but i know that is the answer

Shane and Abha earned a team badge that required their team to collect no less than 2000 cans for recycling. Abha collected 178more cans than Shane did.
Write an inequality to determine the number of cans, S, that Shane could have collected.

Answers

Answer:

[911,∞)

Step-by-step explanation:

Given: S be the number of cans collected by Shane.

Since,  Abha collected 178 more cans than Shane did.

Then, the number of cans collected by Abha = S+178

Also, Shane and Abha earned a team badge that required their team to collect no less than 2000 cans for recycling.

So,  

Hence, the solution set of the inequality will be [911,∞)

a) 3= x + 7
b) -7a-49

Answers

Answer: b im pretty sure hope this helps :)

Step-by-step explanation:

Answer:

A: x = -4

B: a = -7 (I'm assuming the '-' in front of 49 was supposed to be an '=')

Step-by-step explanation:

A: You need to group the like terms together, and isolate the variable, which in this case is x.

Take the 7 over to the other side, so the equation looks a little bit like this.

3-7 = x.

3-7 is -4, so we've gotten our answer.

x = -4.

B: -7a = 49.

When two negative numbers are multiplied together, the product becomes positive.

49 is 7x7.

-7 times -7 would be 49.

So, in this situation, a would be -7.

a = -7.

Which equation best represents the graph?

Answers

It’s the last choice
Slope is decreasing so negative slope is 1/2
Y intercept is 3

Write 0.4% in simplest form

Answers

Answer:

if simplest form by you mean fraction then the answer is 2/5

hope this is the answer you are looking for

Step-by-step explanation:

Write an expression to represent the following:
Two less than the product of five and a number x.?

Answers

Step-by-step explanation:

[tex]5x - 2[/tex]

...........

Answer:

2-5x

Step-by-step explanation:

let the number be x, 5 *x = 5x.

2 less means ,2 minus,

>> 2-5x.

Order form least to greatest
0.777, 9/11, 5/9, 65%, 0.714, 83.3%, 0.583, 0.5, 0.75, 4/9

Answers

Answer:

4/9, 0.5, 0.583, 5/9, 65%, 0.714, 0.75, 0.777, 9/11, 83.3%!

Step-by-step explanation:

Hope this helps

8/9 + 2/3 + 1/6 = PLeASe HeLp

A. 11/8

B. 11/15

C. 1 13/18

D. 1 2/9

Answers

Answer:

C. 1 13/18

Explanation:

The area of the following parallelogram is 77m2. What is the length it’s base?

Answers

Answer:

11 maybe???

Step-by-step explanation:

PLEASE HELP THIS IS TIMED!!

Answers

Answer:

(D) 3/10

Step-by-step explanation:

So its split into 10 different rates each and its on the third split So 3/10.

What is the value of x in the equation 13−2(+4)=8+1 13 x − 2 ( x + 4 ) = 8 x + 1 ?

Answers

Answer: x= 12/103

alternate form x =0.116505

Step-by-step explanation:

Try Photo math! It explains step by step!

Hope this helps!!!!

Someone help please ​

Answers

Answer:

it is 1000x+2000

Step-by-step explanation:

Question:

Answer: 1000x + 2000
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