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
Svetradugi [14.3K]
3 years ago
12

*PLEASE HELP and explain how you got the answer!!*

Mathematics
1 answer:
maxonik [38]3 years ago
7 0

9514 1404 393

Answer:

  256,096 ft²

Step-by-step explanation:

<u>Pyramid Area</u>

Each of the four faces is a triangle with a base of 756 feet and a height of 612 feet. The area of that triangle is ...

  A = 1/2bh

  A = 1/2(756 ft)(612 ft) = 231,336 ft²

The total area of the four visible faces of the Great Pyramid is ...

  pyramid area = 4 × 231,336 ft² = 925,344 ft²

__

<u>WTC Area</u>

Each of the four rectangular side faces of the WTC tower has a base length of 208 ft and a height of 1368 ft. The area of it is ...

  A = LW = (208 ft)(1368 ft) = 284,544 ft²

The area of the square top of the tower has an area that is ...

  A = s² = (208 ft)² = 43,264 ft²

The total area of the four visible sides and the top is ...

  WTC tower area = 4 × 284,544 ft² +43,264 ft² = 1,181,440 ft²

__

The difference between the areas is ...

  WTC tower area - Great Pyramid area =

     1,181,440 ft² -925,344 ft² = 256,096 ft²

The difference in visible area is 256,096 ft².

You might be interested in
Write the equation of a line that passws through the point (1,7) and is perpendicular to y=1/2x-5
Firdavs [7]

Answer:

y=-2x+5

Step-by-step explanation:

For one line to be perpendicular to another, their slopes must multiply to -1. So, we really want the line with slope $-1/(1/2)$ = -2$ that passes through the point (1, 7).

Recall the point-slope form of a line. If you have a point $(x_{1}, y_{1})$ and a slope m, the line through that point with the given slope is $y-y_{1}=m(x-x_{1})$. Plugging in our given point and slope gives our line: y-7=-2(x-1)(point-slope form).

We can convert this line to slope-intercept form, the most common form by expanding the right side and adding 7 to get y by itself:

y-7=-2x+2

y=-2x+5

5 0
3 years ago
A certain shade of paint is made by mixing 3/4 quarts red with quarts yellow. How much red and yellow paint would you need if yo
Scorpion4ik [409]
9 quarts of red and 3 quarts of yellow. do 3/4 times 12 and 1/4 times 12
4 0
3 years ago
A cone has a base radius of 7 centimeters and a height of 21 centimeters.
Arada [10]
V = (1/3) x πr² x h = cm³
7 0
3 years ago
Select all equations that have graphs with the same y-intercept.
vlada-n [284]

Answer:

y = 3x - 8

y = (1/3)x - 8

y= 5x - 8

y= 2x - 8

5 0
3 years ago
Read 2 more answers
PLZ HELP WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST What is the slope-intercept form of the equation of the line that passes
grigory [225]

Answer:

A.

Step-by-step explanation:

We are given the two points (2,7) and (4,-1).  In order to determine the linear equation, we need to find the slope and the y-intercept. First, find the slope <em>m.</em> Let (2,7) be x1 and y1, and let (4,-1) be x2 and y2:

m=\frac{y_2-y_1}{x_2-x_1} =\frac{-1-7}{4-2}=-8/2=-4

Thus, the slope is -4.

Now, to find the y-intercept, we can use the point-slope form. Recall that the point slope form is:

y-y_1=m(x-x_1)

Where (x1, y1) is a coordinate pair and m is the slope.

Use either of the two coordinate pair. I'm going to use (2,7). Substitute them for x1 and y1, respectively:

y-(7)=-4(x-(2))\\y-7=-4x+8\\y=-4x+15

This is also slope-intercept form. The answer is A.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help me with the LxWxH of a sphere and a cylinder plz
    8·1 answer
  • A sphere has a volume of 900 cubic inches. Find its surface area to the nearest whole number. I know how to solve it, but I can'
    11·1 answer
  • Add &amp; subtract comple
    8·1 answer
  • What is the value of 72 -4+5?
    13·1 answer
  • Find the measure of each acute angle.<br> 3xº<br> 2x<br> 19<br> 3.2<br> and 20
    11·2 answers
  • What is the slope of the line?
    9·2 answers
  • What is the formula for density​
    11·2 answers
  • Ello bruv... can y'all help me!:
    5·1 answer
  • Identify the vertex of the parabola.
    7·2 answers
  • Of 100 students, 30 can speak French, 10 can speak German, and 6 can speak both French and German. If a student is picked at ran
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!