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
Arada [10]
3 years ago
10

What is the surface area of the figure?

Mathematics
2 answers:
lisov135 [29]3 years ago
7 0

Answer:

The surface area of the figure is SA=458\ ft^{2}

Step-by-step explanation:

we know that

The surface area of the figure is equal to

SA=2B+PH

where

B is the area of the L-shaped cross section

P is the perimeter of L-shaped cross section

H is the width of the figure

<em>Find the area of the L-shaped cross section</em>

B=12*7+5*5=109\ ft^{2}

<em>Find the perimeter P of L-shaped cross section</em>

P=(12+7+7+5+5+12)=48\ ft

H=5\ ft

substitute

SA=2(109)+(48)(5)=458\ ft^{2}

Readme [11.4K]3 years ago
4 0

Answer:

Surface area = 458 square ft

Step-by-step explanation:

From the figure attached with this answer we can see figure.

<u>To find the surface area of the figure</u>

Surface area is sum of area of  small rectangles

Surface area = 2(12 * 7 ) + 4(5 * 5) + 2(12 * 5) + 2(7 * 5)

= 2*84  + 4*25 + 2 *60 + 2*35

 = 168 + 100 + 120 + 70

 = 458

Therefore surface area of given figure = 458 square ft

You might be interested in
Penelope is going to invest $23,000 and leave it in an account for 11 years. Assuming the interest is compounded continuously, w
madreJ [45]

Answer:

5.3%

Step-by-step explanation: answer fo

r delta math

6 0
3 years ago
According to the empirical (69-95-99.7) rule, if a random variable z has a standard normal distribution, then approximately 95%
Dmitry_Shevchenko [17]

Using z-scores, it is found that the value of z is z = 1.96.

-----------------------------

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula, which for a measure X, in a distribution with mean \mu and standard deviation \sigma, is given by:  

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • Each z-score has an associated p-value, which is the percentile.

  • The normal distribution is symmetric, which means that the middle 95% is between the <u>2.5th percentile and the 97.5th percentile</u>.
  • The 2.5th percentile is Z with a p-value of 0.025, thus Z = -1.96.
  • The 97.5th percentile is Z with a p-value of 0.975, thus Z = 1.96.
  • Thus, the value of Z is 1.96.

A similar problem is given at brainly.com/question/16965597

7 0
2 years ago
State the independent variable and the dependent variable in the linear relationship. Then find the rate of change for the situa
trapecia [35]
Ind. number of people Dep. Cost, rate of change for adult 13$
7 0
3 years ago
I NEED HELP ASAP!! will be willing to mark you brainliest!
Softa [21]

Answer:

8/75

Step-by-step explanation:

5 0
3 years ago
At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e
fredd [130]

Answer:

A(t)=(0.902)^t \cdot 1500 [km^2]

Step-by-step explanation:

In this problem, the initial area of the  forest at time t = 0 is

A_0 = 1500 km^2

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0

After 2 years,

A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0

And so on. So, after t years, the area of the forest will be

A(t)=(0.902)^t A_0

And by substituting the value of A0, we can find an explicit expression:

A(t)=(0.902)^t \cdot 1500 [km^2]

8 0
3 years ago
Other questions:
  • Convert: 0.16 km = cm
    7·1 answer
  • Consider the table representing an exponential function .
    7·2 answers
  • PLZZZZZZ HELPPPPPP QUESTION 2<br> ATTACHMENT BELOW
    9·1 answer
  • A skate ramp is 4.2 meters long. It rises up 1.7 meters. What’s is the angle of elevation to the nearest tenth of a degree?
    13·1 answer
  • Latavia purchased adult and child tickets for the fall festival. Tickets cost $14.88 for each adult and $8.88 for each child. Le
    8·2 answers
  • Katrina buys a ​40-ft roll of fencing to make a rectangular play area for her dogs. Use ​2(​l+w)=40 to write a function for the​
    10·1 answer
  • 1. The angle of depression from the top of the
    7·1 answer
  • 4x-3=2(3+x-1) what is the answer?
    13·2 answers
  • Please help me!!? It’s onramps precalc and I have no Idea what I am doing
    14·1 answer
  • I restarted The app 1111122
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!