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
Setler [38]
2 years ago
11

Help me find the surface area

Mathematics
1 answer:
lesya [120]2 years ago
7 0

Step-by-step explanation:

it looks like this is a regular (right) triangular prism with 3 equal side areas and one bottom area.

the surface area of the pyramid is the sum of all 4 of these areas.

all these areas are triangles.

the area of a triangle is

baseline × height / 2

in our case

1 side area is 6×8.2/2 = 3×8.2 = 24.6 yd²

all 3 side areas together are 24.6×3 = 73.8 yd²

the bottom triangle is

6×5.2/2 = 3×5.2 = 15.6 yd²

so, the total surface area is

73.8 + 15.6 = 89.4 yd²

You might be interested in
Help? Sorry if it’s pink
Vadim26 [7]
3 = 3/4(b - 8)
Switch sides
3/4(b - 8) = 3
Next, multiply both sides by 4
4 * 3/4(b - 8) = 3 * 4
Then simplify,
3(b - 8) = 12
Next, divide both sides by 3
3(b - 8)/3 = 12/3
Then, simplify
b - 8 = 4
Then, add 8 to both sides
b - 8 + 8 = 4 + 8
Simplify, b = 12
6 0
3 years ago
Math<br> order of operations-Basic four operators<br> 6x8-12divedby3+ 9
drek231 [11]

Answer:

21

Step-by-step explanation:

6 times 8 = 48-12=36 divided by 3 =12+9=21

4 0
3 years ago
The weight of a rock sample is measured to be 2.5 pounds. What is the percent of error in the measurement? 2% 5% 10%
elixir [45]

Answer:

The percent of error in the measurement is 2%

Step-by-step explanation:

The percent of error associated with a reported measurement is calculate using the formula;

percenterror=\frac{error}{measurement}*100

The error associated with a measurement is defined as half of the smallest unit of measurement used. The measurement reported was 2.5. The smallest unit of measurement for this reading is 0.1. The error is thus;

error = 0.1/2 = 0.05

The percent of error is thus;

\frac{0.05}{2.5}*100=2

 

6 0
3 years ago
Which of the following is not one of the fastest growing jobs in the nation?
qwelly [4]

Answer:

The Top 10 Fastest-Growing Careers in 2020

Wind turbine service technicians. ...

Home health and personal care aides. ...

Occupational therapy assistants. ...

Information security analysts. ...

Physician assistants. ...

Statisticians. ...

Nurse practitioners. ...

Speech pathologists.

More items...

Step-by-step explanation:

3 0
3 years ago
Describe whether the rates are equivalent.
GaryK [48]
To get whether they are equal you have to cross multiply the numbers 18x16 and 48x3

48x3= 144

16x18= 288

144 is not equal to 288.

Therefore the rates aren’t equivalent.
6 0
3 years ago
Other questions:
  • In ABC, what is the value of cos B? <br><br>A) 5/4 <br>B) 3/4 <br>C) 3/5 <br>D) 4/5 <br>E) 4/3
    14·1 answer
  • Please Help!!! I need help
    14·1 answer
  • HELP! What is the value of X in the following parallelogram? WILL GIVE BRAINLIEST!
    7·2 answers
  • In 2015, there were approximately 32,200 firearm fatalities.Express this quantity in deaths per hour.
    5·1 answer
  • A student noticed different gas prices as she drove around town. Find the second quartile. $3.31 $3.28 $3.42 $3.35 $3.31 $3.26 $
    15·2 answers
  • Rational Expressions <br> 5n/15 + 7n/15
    8·1 answer
  • Will give brainliest answer
    6·2 answers
  • Pls pls help it's really urgent!!! ​
    10·1 answer
  • 1/2x - 6 = -6 + 1/2x - No Solution One Solution Infinite Solutions​
    12·2 answers
  • -(-(8)))Explain how to answer
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!