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
Katyanochek1 [597]
2 years ago
8

. A building in the shape of a rectangular prism needs to be painted. Some facts about the building are shown below. The buildin

g has a width of 50 feet, a length of 80 feet, and a height of 120 feet. • There are 60 windows on each lateral face of the building. • Each window is a square measuring 5 feet on a side. Using this information, which expression represents the total lateral surface area, in square feet, that needs to be painted? o (2) (120) (80) + (2) (120) (50) – (60) (52) o (2) (120) (80) + (2) (120) (50) – (4) (60) (52) o (2) (50) (80) + (2) (120) (80) + (2) (120) (50) – (60) (52) o (2) (50) (80) + (2) (120) (80) + (2) (120) (50) – (4) (60) (52) - Previous​
Mathematics
1 answer:
Softa [21]2 years ago
6 0

Answer:

(2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

Step-by-step explanation:

The lateral faces of the building are the 4 sides of the building consisting:

2 rectangles of 120 ft by 80 ft

Area of the two rectangular faces = (2)(120)(80)

And

2 rectangles of 120 ft by 50 ft

Area of the two rectangular faces = (2)(120)(50)

✔️Total lateral surface area of the building = (2)(120)(80) + (2)(120)(50)

Note: we are asked to find the expression that represents the total surface area that needs to be painted given that there are 60 windows on each lateral face of the building of the shape of a square with side lengths of 5 ft.

Therefore, the total lateral surface area of the building that will be painted = total lateral surface of the building - total area covered by the 60 windows on each face of the building

Surface area covered by 60 windows in the 4 lateral face of the building = (4)(60)(5²)

✅total lateral surface area of the building that will be painted = (2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

You might be interested in
Which of the following correlation coefficients expresses the weakest degree of relationship between two variables?
Montano1993 [528]

The correlation coefficient between the variables are always between +1 and -1

If the correlation coefficient is near to +1 the degree of relationship between variables is strongly positively correlated. And if the correlation coefficient is near to -1 the degree of relationship between variables is strongly negatively correlated.

Hence at the extremes +1 and -1, there is a strong degree of relationship between two variables

Near to 0 (the middle of the range), there is a weak degree of relationship between two variables

So, the answer would the value the is nearest to 0 since we want a weak relationship

The value that is nearest to 0 is a) 0.10

So, the answer is a)0.10


6 0
3 years ago
True or false, areas under the standard normal curve cannot be negative, whereas z-scores can be positive or negative.
Veseljchak [2.6K]

Answer:

True.

Step-by-step explanation:

We have been given a statement. We are asked to determine the given statement is true or false.

Statement: Areas under the standard normal curve cannot be negative, whereas z-scores can be positive or negative.

We know that area under the standard normal curve is equal to 1, so area under normal curve cannot be negative.

We know that a z-score represents that a data point is how many standard deviation above or below mean.

When a data point is less than mean, then z-score will be negative and when a data point is greater than mean, the z-score will be positive.

Therefore, our given statement is true.

5 0
2 years ago
Endpoint 1: (-1,2)<br> Midpoint: (9,-6)<br> Endpoint 2=
Vlad [161]

Answer:

(19 , -14)

Step-by-step explanation:

Find the distance in between each x & y for a coordinate.

Let: (x₁ , y₁) = (-1 , 2)

Let: (x₂ , y₂) = (9 , -6)

From x₁ ⇒ x₂: 9 - (-1) = 10

From y₁ ⇒ y₂: -6 - 2 = -8 = 8*

*Remember that distance cannot be negative, but for the sake of this question, we will leave it as -8.

The distance between the x points are in intervals of 10. The distance between the y points are in intervals of 8. Add 10 & subtract 8 to their respective numbers to get endpoint 2:

(9 (+ 10) , -6 (- 8)) = (19 , -14)

Endpoint 2 = (19 , -14)

~

7 0
3 years ago
Which term best describes the expression 2x + 2dy−3?
Margarita [4]

Answer:

the term is separated by minus (-) and plus (+) .

therefore this term is trinomial.

7 0
3 years ago
Read 2 more answers
How many megabytes of data can a 4.7 gigabyte dvd store?
dedylja [7]
The answer is 4700 megabytes.

1 giga = 1000 mega

1 gigabyte = 1000 megabyte
4.7 gigabyte = x megabyte

1 gb : 1000 mb = 4.7 gb : x
x = 1000 mb * 4.7 gb : 1 gb
x = 4700 mb 
3 0
2 years ago
Other questions:
  • What is the absolute value of 5.23
    7·1 answer
  • When the digit at the rounding place is 9 round the following number as indicated 13,912;to the nearest hundred
    5·1 answer
  • Which of the following is a name for an isometry that moves or maps every point of the plane the same distance and direction? se
    11·1 answer
  • a=13 c=15 A=53 Two sides and an angle​ (SSA) of a triangle are given. Determine whether the given measurements produce one​ tria
    14·1 answer
  • Can someone answer this for me asap? thanks!
    13·1 answer
  • Elmer has a collection of 300 fossils. Of these, 21% percent are fossilized snail shells.
    9·2 answers
  • Machine A takes a hours to make 100 bolts, and machine B takes b hours to make 100 bolts. How many
    9·1 answer
  • Is the number rational or irrational
    14·1 answer
  • Find the two pairs of numbers whose LCM is the product of the numbers<br><br>help pls
    14·1 answer
  • PLEASE HELP IMAGE ATTACHED⚠️⚠️⚠️⚠️⚠️
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!