Find the surface area plz

Find The Surface Area Plz

Answers

Answer 1

Answer:

Step-by-step explanation:

4 triangles

Each of the 3 from the vertical ones has area

A = bh/2 = 10.12/2 = 60ft^2

The latter surface pointing down

A = bh/2 = 10.8.7/2 = 43.5 ft^2

SO summation of all

60+43.5 = 103.5 ft^2


Related Questions

What is the present value for $12,484 at 8% for two years

Answers

Answer:

Total = Principal * (1 + rate)^2

Total = 12,484 * (1.08)^2

Total = 14,561.34

Source http://www.1728.org/compint.htm

Step-by-step explanation:

What is the difference/ ratio of the numbers 6.25, 25, 100, 400,

Answers

1:4

The pattern in the number sequence is that every number is 4 times larger than the one before it. In ratio form, 1:4 would be the representation of the pattern.

Can a right triangle be made from given side lengths 4 in,6 in, 8in

Answers

Answer:

no

Step-by-step explanation:

I dont know how to explain but I did the work and it was clearly not a right angle

The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow. 6 10 2 6 3 3 3 6 6 6 6 5 8 9 10 10 7 9 3 6 5 10 9 9 10 3 8 6 6 3 3 6 6 5 4 10 9 3 5 7 10 6 3 8 6 8 3 3 5 5 Develop a confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places.

Answers

Answer:

(5.4582 ; 6.8618)

Step-by-step explanation:

Given the data:

6 10 2 6 3 3 3 6 6 6 6 5 8 9 10 10 7 9 3 6 5 10 9 9 10 3 8 6 6 3 3 6 6 5 4 10 9 3 5 7 10 6 3 8 6 8 3 3 5 5

Sample mean, xbar = Σx / n

n = sample size = 50

ΣX = 308

xbar = 308 / 50 = 6.16

Using a Calculator :

The sample standard deviation, s = 2.469

Confidence interval = xbar ± margin of error

Margin of Error = Tcritical * s/sqrt(n)

Tcritical at 95% ; df = 50 - 1 = 49

Tcritical = 2.010

Hence,

Margin of Error= 2.010 * (2.469/sqrt(50)) = 0.7018

Lower boundary : (6.16 - 0.7018) = 5.4582

Upper boundary : (6.16 + 0.7018) = 6.8618

(5.4582 ; 6.8618)

An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 4.6 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 26 engines and the mean pressure was 4.9 pounds/square inch with a variance of 0.81. A level of significance of 0.05 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.

Answers

Answer:

Decision Rule; Reject H₀ if t > 1.708

Step-by-step explanation:

Given the data in the question;

sample size n = 26

sample mean x' = 4.9

Variance = 0.81

standard deviation σ = √variance = √0.81 = 0.9

level of significance ∝ = 0.05

Claim;

Null hypothesis             H₀ : μ = 4.6

Alternative hypothesis H₁ : μ > 4.6

Test Statistics;

Right tailed test

Now, decision rule for rejecting H₀;

degree of freedom df = n - 1 = 26 - 1 = 25

so, Right tailed test { > in H₁ }

Hence, Critical Value = [tex]t_{\alpha ,df[/tex] = [tex]t_{0.05, 25[/tex] = 1.708

Decision Rule; Reject H₀ if t > 1.708

Can someone please help me I will mark u brilliant

Answers

Answer:

I believe the answer is 3 3/4.

Step-by-step explanation:

the volume of a rectangular prism is length × width × height

Answer: The volume is 3 3/4 cubic inches.

Step-by-step explanation:

V= l*w*h

V= 1 1/4* 1 1/2*2

v= 3 3/4

Which equation could be used to find the
total cost cif Fernando wanted to buy
8 pencils from the school store?

Answers

Answer:

A. C=0.15*8

Step-by-step explanation:

3 pencils for $0.45, think about how much one pencil costs? so divide 0.45 by 3 and get 0.15 which basically means 1 pencils is 15 cents, multiply that by the amount of pencils fernando wants which is 8 and that's your equation

Miguel has $30. He spends $6.00 on a movie ticket, $3.80 for snacks, and $1.00 for bus fare each way.

How much money does Miguel have left?

Miguel has $ left.

Answers

19.2 is your answer i am 100% sure of it have a great day! plz mark brainlyest

Answer:

answer is 19.2 left ........

There are 3 students in the class and 27 apples. If the apples are shared equally by all of the students. How many apples will each student get? Please write your answers in complete sentences.

Answers

Answer:

9(Nine)

Step-by-step explanation:

9 × 3 = 27

so Each student will get 9 apple's

each student would get 9apples

a car travels 60km in 36minutes.At the same average speed, how far will it travel in 1 hour 12 minutes​

Answers

Answer:

120km

Step-by-step explanation:

1hr 12 min is double 36 minutes

so just double 60

Sara is making a key chain using the bead design shown.

What fraction of the beads in her design are either red or blue?
pcagm15g560619

Answers

Answer is 11/15
This is the answer

2) What is the area of the figure?

Answers

Answer:

9+7+4+5= 25

Step-by-step explanation:

add up everything then get ur answer

someone please help me answer this!!!

Answers

Answer:

4.8 km is the answer.

Step-by-step explanation:

a = ?

b = 5 km

c = 7 km

According to the Pythagorean theorem,

a² + b² = c²

a² + 5² = 7²

a² + 25 = 49

a² = 49 - 25

a² = 24

a = 4.8989

Round to the nearest tenth,

a = 4.8 km

1 Secchie die Rechenregeln
b) 4 (70+30)
4. 70 + 30
c) 6 (50-40)
650 - 40 -
2.80 - 20
a) (90-30) - 3
90 - 30-3-
e) . (40 - 20)
7. 40 - 20 -
+) (80-10)
SO - 10.7
g) (40+60) 8 -
40 - 60 - 8
h) 250 + 50 5
(250+50). 5
i 360 - 60 6 =
(360-60). 6 =​

Answers

Answer:

4747484o5958583883

Step-by-step explanation:

fax bro just spitting fax

What is the value of the expression 13/4 (8)? *

Answers

Answer: 26

(13/4) (8/1) =(13) (8)/ (4) (1) = 104/4 = 26

Step-by-step explanation:

I think the answer is 26 have a nice day!

This sign is 50 centimeters high and 40 centimeters along the base. What is it’s area?

Answers

height =50

base=40

area of triangle =1/2b*h

1/2*40*50

1000

10 POINTS FOR THE CORRECT ANSWER PLEASE HELP

Answers

Answer:

Step-by-step explanation:

The Pythagorean theorem says:

[tex]a^2+b^2=c^2[/tex]

where a and b are the two legs of the triangle and c is the hypotenuse.  Here, let's say a = 6 and b = [tex]\sqrt{13}[/tex]. We then get the following equation:

[tex]c^2= (6)^2+(\sqrt{13})^2=49[/tex]

So c = 7. Technically, c can also equal -7 since (-7)^2 = 49 as well but that does not apply here because a side length cannot be <0. So 7 is the answer.

WHAT IS (1+1)*0 HELP!

Answers

Answer:

0

Step-by-step explanation:

anything times zero is zero

Solve the triangle. Round decimal answers to the nearest tenth.

Answers

I’m not good at math but the triangle angle sun theorem says that all angles inside a triangle equals to 180 degrees so the last degree would be 65 degrees

Find the distance between the points (3,7) and (3,2)

Answers

Answer:

5 units.

Step-by-step explanation:

Since the distance is straight up.

You have two options:

Graph those two points and count the spaces separating them

or

Since they have the same x, you would only need to subtract 7-2.

if the probability that will rain today is 5/8 what us the probability that it will not​

Answers

Answer:

3/8

Step-by-step explanation:

1 - 5/8 = 3/8

1-5/8

3/8

the probability that it will not rain ☔ is 3\8

please help i don't know what to do

A slope and x-intercept

B slope and y-intercept

C Slope and a point that is not an intercept

D x-intercept and y-intercept

E y- intercept and a point that is not an intercept

F two points that are not a intercepts ​

Answers

Answer:

5

It is that because I know this

A sample of size 20 from a normal distribution has sample mean 3.5 and sample variance 14.75. Find 90% confidence intervals for the variance and standard deviation of the distribution.

Answers

Answer:

Variance =9.2983, 27.6927

Standard deviation = 3.0493, 5.2624

Step-by-step explanation:

n = 20

S = 14.75

X² = chisquare

N-1 = degree of freedom

Alpha = 0.1

Alpha/2 = 0.1/2 = 0.05

1-0.1/2 = 0.95

Using statistics table

X² 19,0.05 = 30.14

X² 19, 0.95 = 10.12

A. 19(14.75)/30.14 , 19(14 75)/10.12

= 9.2983, 27.6927 for the variance of the population

B. Standard deviation = square root of variance

= √9.2983, √27.6927

= 3.0493, 5.2624

Please use attachment for better understanding

Classify the angle pair using all names that apply

Answers

Answer:

Vertical and supplementary

Step-by-step explanation:

Angles 1 and 2 are Vertically opposite angles and therefore they are equal to each other.

The average annual cost of the first year of owning and caring for a cat is $1,500. A sample of 81 will be used. Based on past studies, the population standard deviation is assumed known with σ = $198. What is the margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat?

Answers

Answer:

The margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat is of $43.12.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

Sample of 81

This means that [tex]n = 81[/tex]

What is the margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat?

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]M = 1.96\frac{198}{\sqrt{81}}[/tex]

[tex]M = 43.12[/tex]

The margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for a cat is of $43.12.

Hurry and answer i need a real answer

Answers

Answer:

C

Step-by-step explanation:

Spinner B has 4/12ths of yellow and spinner a has 2/6ths. 2/6 is equivalent to 4/12ths

Answer:

C  :>

Step-by-step explanation:

What is 24 1/2 - 9 7/8?

Answers

Answer:

the answer is 12 I hope this answer helps you

Write an expression for the area of each section of the wall.
***NOTE, that x is the TOTAL length of the rectangle so you can't call x the length of each of the 5 sections.

Answers

Answer:

50

Step-by-step explanation:

10*5=50

Find the value of x in the figure below if RE is parallel to PM.

2.3 units
16 units
21 units
4.6 units

Answers

Answer:

21 units

Step-by-step explanation:

Since,

RE is parallel to PM,

( AR / RP ) = ( AE / EM )

( 7 / x ) = ( 6 / 18 )

( 7 / x ) = ( 1 / 3 )

x × 1 = 7 × 3

x = 21 units

Ethan earns $12 per hour for walking Ms. Barns's two dogs, plus an additional $7 for brushing the dogs after their walk.

→ Let x represent the hours Ethan works.
→ Let y represent the total he earns each day.

Which number sentence best represents this situation?

A. 12 + 7 + 2 = y

B. 12x · 2 + 7 = y

C. 12x + 7 = y

D. 12x - 7 = y

Answers

Answer:

i think the answer is C. 12x+7=y :)

Step-by-step explanation:

Other Questions
Greg needs to practice his clarinet for 40 minutes per day. He already practiced 30% of the total time needed. How many more minutes does he need to practice? Name the crops began to grow about 8000 years ago? Type you answer inAmy worked 37.5 hours last week.She is paid 11.50 per hour.Her total deductions last week were116.30.What was Amy's net pay last week? Find S7of the sum of the geometric series.a1=4374,a7=6,r=1/3 Group of answer choicesA. 6568B. 6583C. 6563D. 6534 please help with this asap thank you Mrs. Eller's corporate employer has a cafeteria plan under which its employees can receive a $3,000 year-end Christmas bonus or enroll in a qualified medical reimbursement plan that pays up to $3,000 of annual medical bills. Mrs. Eller is in a 24 percent tax bracket, and her medical bills average $2,300 each year.a. Should Mrs. Eller choose the cash bonus or the nontaxable fringe benefit? (Ignore any payroll tax implications.) b. Does your answer change if Mrs. Eller is in the 12 percent tax bracket? In IJK, i = 340 cm, I=120 and J=59. Find the area of IJK, to the nearest 10th of a square centimeter. Carols monthly take home pay is $1500. She spends $250 a month on food. What is the ratio of food costs to take home dollars? Draw a labeled sketch of an electric motor to show how it uses electromagnetism to convert electrical energy to kinetic energy.Assume that an electromagnet and a solenoid have the same number of turns in their wire coil and the same amount of current flowing through the wire. Which device has the stronger magnetic field? Explain your answer. Blood type AB is found in only 3% of the population. If 345 people are chosen at random, find the probability of the following. (Use the normal approximation. What is the wavelength associated with 0.113kg ball traveling with velocity of 43 m/s? -4(7 + v) = 28pls help me step by step how to do it. :) A mismatch between foreign currency denominated net assets and net liabilities Multiple Choice can be eliminated by constructing a balance sheet hedge. can be eliminated by multiplying the foreign currency value of the asset by the spot exchange rate. can be eliminated by undertaking accounting changes to eliminate translation exposure. none of the options Why did we need to abolish the Articles of Confederation?A. The Federal Government was too strongB. The Federal Government was too weakC. Just to change things upD. The Federal Government was asking for too much taxes Use the point-slope form to write an equation of a line through the given points.(3, 2) and (3, 4) Please help.. not really understanding this Natata Townsend1. Which of the following nutrient is responsible for repairing of cells?O (a) calciumO (e) fatsO (b) protein0 (d) carbohydrates Evaluate the expression: -(8 - 12) + 6 + (-4)2. answer both of them. Prompt 4:The scientists are proposing a new reintroduction site. They want to predict how many ferrets could occupy thesite. Here are some facts about the new site:..Annual Rainfall - 17.59 inchesArea - 4600 hectaresNumber of prairie dog colonies on site - 48Prairie dog colony size on site - 473.24 individuals/siteRelative Prairie Dog Biomass - 0.3221.