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
goldfiish [28.3K]
3 years ago
9

Find the surface area of the equilateral triangular pyramid.

Mathematics
2 answers:
Mrac [35]3 years ago
8 0
The answer is 228. hoped this helped

11Alexandr11 [23.1K]3 years ago
5 0
Area  = 3 * 1/2 * 10 * 12 + 1/2 * 12 * 8  =  180 + 48 = 228 answer
You might be interested in
Please help I have 15 minutes left for my assessment. Thank you!
posledela

Answer:

57kg

Step-by-step explanation:

We need to find the length of each piece of metal:

We already know that 2 of them are 6m and 8m and this would be the same for the pieces of metal opposite.

So we have four lengths - 6m, 6m, 8m, and 8m

To find the last length, we need to use pythagoras theory

a² + b² = c² where c is the slanted side, or the diagonal

6² + 8² = c²

36 + 64 = 100

c² = 100

c = √100 = 10

So the five lengths are 6m, 6m, 8m, 8m, and 10m and the total is 38m

If:

1m = 1.5kg

38m = ?kg

We have to multiply both sides by 38

1m × 38 = 38m

1.5kg × 38 = 57kg

So, the total weight of metal in the frame is 57kg

3 0
3 years ago
A rectangle is (2 x + 5) long and (x^2 - 3x + 1) wide. What is its area?
Stolb23 [73]
Area of a rectangle is computed by multiplying its length and its width.

A = L * W
A = (2x+5)(x²-3x+1)
A = 2x(x²) + 2x(-3x) + 2x(1) + 5(x²) + 5(-3x) + 5(1)
A = 2x³ - 6x² + 2x + 5x² - 15x + 5
Group like terms:
A = 2x³ - 6x² + 5x² + 2x - 15x + 5
A = 2x³ - x² - 13x + 5   CHOICE A.

3 0
3 years ago
What is electronic government ? and give some examples of it ..
yanalaym [24]

The electronic government or e-government, also used as synonyms the terms electronic administration or e-administration, consists of the use of information and communication technologies and knowledge in internal government processes, as well as in the delivery of the products and services of the State to both citizens and industry.

Like e-government examples we can take: Portals, ERP, GRPs, CRMs and social networks.

8 0
3 years ago
PLEASE HELP
Studentka2010 [4]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
. The diameter of Bubba's bubble is
Oksana_A [137]

Answer:

10.22

Step-by-step explanation:

2.45 * 10 =20.45 - 3.67 * 10 =30.67

30.67 - 20.45

30 - 20 = 10

.67 - .45 = .22

30.67 - 20.45 = 10.22

8 0
2 years ago
Other questions:
  • Is the square root of 96 rational or irrational
    12·1 answer
  • Find the x-intercept of the graph of the equation 2x - 5y = 10.
    7·1 answer
  • You go to a restaurant. You order a bacon cheeseburger for $5.95, a side of fries for $2.99, a side salad for $1.29, an ice crea
    9·2 answers
  • What is 3/4•1<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B4%7D%20%20%20%5Ctimes%204" id="TexFormula1" title=" \frac
    7·2 answers
  • Write f(x) = 2x^2 + 2x + 3 in factored form.
    10·1 answer
  • I need this now please
    12·1 answer
  • 13. SOLVE FOR X<br> 21)<br> 18<br> 21<br> x+ 13<br> A) 8<br> C) 7<br> 28<br> B) 11<br> D) 6
    6·1 answer
  • 166. Запишите все целые числа, расположенные на координатной прямой между числами:
    9·1 answer
  • Find the mAB ( circle) <br> B<br> A<br> 44°
    9·1 answer
  • Select the polynomials that are a difference of squares.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!