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
Ganezh [65]
3 years ago
5

HELP PLEASE I NEED THIS QUESTION

Mathematics
1 answer:
Lesechka [4]3 years ago
6 0

9514 1404 393

Answer:

  B.  75.8 ft²

Step-by-step explanation:

The height of each triangle can be found using the Pythagorean theorem. The given edge length (7 ft) is the hypotenuse of the triangle, and the base edge length is twice one leg of the triangle.

The height of the triangle on the 2 ft faces is ...

  √(7² -1²) = √48 = 4√3

The height of the triangle on the 8 ft faces is ...

  √(7² -4²) = √33

The areas of the triangular faces are the product of the height and half the base length:

  A = 1/2bh

  2 ft edge triangle area = (1/2)(2 ft)(4√3 ft) = 4√3 ft²

  8 ft edge triangle area = (1/2)(8 ft)(√33 ft) = 4√33 ft²

__

The area of the rectangular base is ...

  A = LW

  A = (8 ft)(2 ft) = 16 ft²

__

The total surface area of the pyramid is the sum of the areas of the triangular faces and the area of the rectangular base.

  2(4√3 +4√33) +16 = 8(2+√3+√33) ≈ 75.813

The total surface area is about 75.8 ft².

You might be interested in
Tual School
Lady_Fox [76]

Answer:

The absolute value equation to represent the scenario is |x - 250| = 25. Also, the minimum amounts and maximum amounts that the artist received for her products is $225 and $275 respectively.

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Let x represent the amount the artist can receive for the goods, hence:

|x - 250| = 25

x - 250 = 25 or -(x - 250) = 25

x = 275 or x = 225

The absolute value equation to represent the scenario is |x - 250| = 25. Also, the minimum amounts and maximum amounts that the artist received for her products is $225 and $275 respectively.

5 0
2 years ago
What is 8.038×108 in standard form?
skad [1K]
Okay. I think what you mean by this is 8.038 * 10^8. 10^8 = 100,000,000. When you multiply that by 8.038, you get 803,800,000. The answer is D.
3 0
3 years ago
Read 2 more answers
Tiffany wants to make 6 batches of cookies. She will need 2 cups of sugar for each
Readme [11.4K]

Answer:12 cups of sugar

Step-by-step explanation:

There is 6 batches each batch has two cups you would do 6x2 for 12 cups.

7 0
3 years ago
a map has a scale of 2in: 6mi. if a two twons on a map is 10 in apart then how far apart are the real twons
Brilliant_brown [7]

Answer:  30 miles

Work Shown:

2 in : 6 mi

5*2 in : 5*6 mi

10 in : 30 mi

7 0
2 years ago
Is -27 divided by (-3) positive or negative & how
zloy xaker [14]

Answer:

9

Step-by-step explanation:

-27/-3

27/3 is 9

each of them have a negative so it stays positive

9

7 0
3 years ago
Read 2 more answers
Other questions:
  • When a polygon reflects across the y-axis, how do the coordinates of the points change?
    6·1 answer
  • SOMEONE PLEASE ANSWER THIS ASAP FOR BRAINLIEST!!!!!!
    8·1 answer
  • I have 4 times the homework than my brother. I have 9 more sheets than him. How many sheets of homework do we have altogether?
    15·1 answer
  • How are the values of the 3s in 33,000 related​
    13·1 answer
  • Y/3 + 8 = -2 solve for y<br> a. -30<br> b. -18<br> c. 18<br> d. 30
    8·1 answer
  • Please Help!!!!!!!! It’s an emergency!!! You will be brainiest and get 25 points!!! Both parts
    15·1 answer
  • Is this a function? I will mark you as most brilliance if you get this right!
    14·1 answer
  • Quick help! Is it A,B,C or D?
    7·2 answers
  • ????????????????????????<br> I’m so bad at math lol
    6·1 answer
  • What is the price per lb of brand X coffee if 3 lb were mixed with 9 lb of brand Y coffee which costs $18/lb to make 12 lb of Ka
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!