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
Gala2k [10]
4 years ago
7

An architect designs a castle tower for a new attraction at a popular amusement park. Blueprints of the tower, which is in the s

hape of a rectangular prism, show that it is 47 cm tall, 23 cm in length, and 25 cm in width. The blueprints have a scale factor of 1:96. Calculate the actual surface area of the tower and enter your answer in square meters with two decimal places, formatted like this: 42.53 m^2
Mathematics
1 answer:
marin [14]4 years ago
4 0

Answer:

<u>The surface area of the tower is 5,218.1 m²</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Height of the blueprint = 47 cm

Length of the blueprint = 23 cm

Width of the blueprint = 25 cm

Scale factor 1 : 96

2. Calculate the actual surface area of the tower and enter your answer in square meters with two decimal places.

Let's calculate the measurements of the actual tower:

Height of the blueprint = 47 * 96 = 4,512 cm = 45.12 m

Length of the blueprint = 23 * 96 = 2,208 cm = 22.08 m

Width of the blueprint = 25 * 96 = 2,400 cm = 24 m

Now, let's calculate the surface area of the tower, this way:

Surface area of the tower = 2* (24 * 22.08) + 2 * (45.12 * 22.08) + 2 * (45.12 * 24)

Surface area of the tower = 1,059.84 + 1,992.5 + 2,165.76

<u>Surface area of the tower = 5,218.1 m²</u>

You might be interested in
Simplify using perfect squares or factor trees. Show your work.
Elena L [17]
6

 if u take √36 and put it in the calculator your answer will be 6 or if u take 6×6 and u will end up with 36 
3 0
3 years ago
The art club had an election to select a president. 56 members voted in the election and 24 did not vote. What percentage of the
Brrunno [24]

Answer:

56 + 24 = 80

56 X 100 = 5600

5600/80 = 70%

6 0
3 years ago
Bob believes his test grade varies directly with the number of hours he spends studying and inversely with the number of hours h
Readme [11.4K]

Answer: Hello mate!

A direct variation implies that, if y is the dependent variable that varies with the variable x; then: y = k*x where k is a real number.

An inverse variation has the form y = k/x where also k is a real number.

them, if we define s as the hours that Bob spends studying, and b as the hours that he spends playing baseball, then the equation that represents the score is:

Score(s,b) = k*s/b

we know that if s = 6, and b = 7, then the score is 72; with this information, we could obtain the value of the constant k.

score(6,7) = 72 =k*6/7 = k*

then  k = 72*(7/6) = 61.7

now if s = 4 and b = 6, the score that he should expect is:

score( 4, 6) = 61.7*(4/6) = 41

6 0
3 years ago
PLEASE Help...
Alex787 [66]
Like in money?Is there a specific amount?. or anything more to what I would have?I need more details
4 0
3 years ago
In early 2012, the Pew Internet and American Life Project asked a random sample of U.S. adults, "Do you ever ... use Twitter or
8090 [49]

Answer:

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

And the confidence interval is given by:

(0.123, 0.177)

And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

And the confidence interval is given by:

(0.123, 0.177)

And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16

3 0
3 years ago
Other questions:
  • Every 1/2 hour Naomi stretches her neck; every 1/3 hour she stretches her legs; and every 1/6 hour she stretches her arms. Which
    11·1 answer
  • An oil slick is expanding as a circle. The radius of the circle is increasing at the rate of 20 meters per day. Express the area
    7·1 answer
  • What is 8.05 × 10-5 in standard notation?
    15·1 answer
  • 7 more than 3 times a number is 52
    8·1 answer
  • The difference between 4,632 and 20,000 is what number?
    8·2 answers
  • heelp!I will have the exam next week. its proportion probability percentages estimatation mean&amp;range ​
    6·2 answers
  • PLEASE HELP!! MEEEEE 1
    12·1 answer
  • The table shows a proportional relationship between x
    5·1 answer
  • Jenna goes fishing every Saturday morning. She is only allowed to catch a maximum of 222 fish each trip. The table below display
    6·1 answer
  • Two water balloons were launched into the air at different moments and collided. the water balloons were modeled by the quadrati
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!