Find the surface area of the regular pyramid

Find The Surface Area Of The Regular Pyramid

Answers

Answer 1

Greetings from Brazil!

[tex]4\dfrac{1}{2} =\dfrac{9}{2}[/tex]

[tex]Af1=\dfrac{b\cdot h}{2} \cdot 4\\\\\\Af1=\dfrac{\dfrac{9}{2} \cdot 4}{2} \cdot 4\\\\\\Af1=\dfrac{\dfrac{36}{2} }{2} \cdot 4\\\\\\Af1=\dfrac{18}{2} \cdot 4\\\\Af1=9\cdot 4\\\\Af1=36~m^2[/tex]

[tex]Af2=l^2\\\\Af2=(\dfrac{9}{2})^2\\\\\ Af2=\dfrac{81}{4}\\\\Af2=20,25~m^2[/tex]

[tex]At=Af1+Af2\\At=36+20,25\\At=56,25~m^2[/tex]

I hope I helped you! =)  


Related Questions

Jaxon paid for 6 pounds of meat to be delivered.
Each pound of meat cost $13.75.
Jaxon paid $12.60 for delivery.
What is the total amount Jaxon paid?
A. $156.75
B. $26.35
C. $95.10
D. $89.35

Answers

Answer:

C/95.10

Step-by-step explanation:13.75 x 6 =82.5+12.60=95.1

A task force to encourage car pooling did a study of of one-way commuting distances of workers in the downtown Dallas area. A random sample of 60 workers was taken. The results are below:One-Way Commuting Distance (miles) Mean12.03333333Standard Error0.712268068Median14Mode16Standard Deviation5.517204729Sample Variance30.43954802Kurtosis-0.84324231Pearson's-1.069382104Range19Minimum1Maximum20Sum722Count60True or False

Answers

Answer:

TRUE

Step-by-step explanation:

using the given data for the one way commuting of workers we can conclude that the spread is = 0.458493468

hence the correct option is TRUE

One way commuting is traveling of passengers using a single lane in both directions

What is the area of this trapezoid?

Answers

Answer: 6625 sqaure yards

Step-by-step explanation:

Area for a trapezoid formula is A=(base 1 + base 2)·height÷2

So base one is 120 and base two is 10+120+15=145

and the height is 50 so (120+145)·50÷2=6625 The area for the trapezoid is 6625


What is the solution to this system of equations?
x + y = 6
{ x = y +2
0 (3, 3)
o (4, 2)
O (2, 4)
O (6, 4

Answers

Answer:

3,3

....................

Please can anyone answer this question

Answers

Y=5p + 65
Not 100% sure tho

what is the average of 301,317,167 and 319​

Answers

Answer:

150658743

Step-by-step explanation:

(301 317 167+319)÷2=150658743

Indria is wrapping the box below. How much wrapping paper does she need 8in 6in 3 in

Answers

Answer:

6pulgadas  

Step-by-step explanation:

Write an equation of the line below.

Answers

Answer:

y=-1/3x

Step-by-step explanation:

y=-2/6x

y=-1/3x

y-intercept is 0

Plsss help me due in 10 minutes

Answers

Answer:

Its the second one.

Step-by-step explanation:

This is because everytime you multiply s times 1/6, you get r. Hope this helps :)

Is it a cylinder or a sphere?

Answers

Answer: Sphere

Step-by-step explanation:

How many real solutions does the system have?
y = -3x - 1
y = x^2– 3x + 4
Enter your answer in the box

Answers

Answer:

no real solutions

Step-by-step explanation:

Substitute y:

-3x-1 = x^2 - 3x + 4

move terms to one side:

0 = x^2 + 5

x^2 = -5

x = ±√5i

no real solutions

Charlotte invested $33,000 in an account paying an interest rate of 7%
compounded continuously. Alyssa invested $33,000 in an account paying an interest
rate of 7% compounded daily. After 19 years, how much more money would
Charlotte have in her account than Alyssa, to the nearest dollar?

Answers

Answer:13058

Step-by-step explanation:

Which of the following statements best describes the diagram below?

a. The intersection of two planes is a line.
b. The intersection of two points is a line.
C. Two points can be contained in two planes.
d. Two points can intersect at two planes.

Answers

The statement first “The intersection of two planes is a line." option (a) is correct.

What is a straight line?

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have two planes, Y and Z intersecting each other.

The intersection of two lines is a point.

As we know, if the two planes intersect each other, the intersection will be a line.

If planes are parallel then there will no intersection.

Thus, the statement first “The intersection of two planes is a line." option (a) is correct.

Learn more about the straight line here

brainly.com/question/3493733


#SPJ2


What is the answer no link no links I will report the answer is not 70%

Answers

Answer:

75%

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

In a box-and-whisker plot, the whiskers show the minimum and maximum while the edges of the box show the first and third quartiles. The line in the box shows the median.

Quartile means a quarter of the data.

We're trying to find out what percentage of the students scored between 70 and 100.

70 is right on the 1st quartile mark, while 100 is on the maximum mark.

This means that a quarter of students got lower than 70, and nobody scored over 100 (because it's a test and it's calculated in percentage).

If a quarter of students got lower than 70, that means three-quarters of students got 70 or higher. And since the maximum is 100, and that is also what we're trying to find, the answer is 3/4 of all students.

3/4 = 75%

Hence, the answer is 75%.

write the following comparison as a ratio reduced to lowest terms.



94 hours to 8 days​

Answers

Answer:

11.75:1

Step-by-step explanation:

alrighty right, more unit rates, so we have to get that 8 down to 1. How are we gonna do that? By dividing it by 8. And if we divide one side by 8, we also have to divide the other side:

8 ÷ 8 = 1

94 ÷ 8 = 11.75

So 94 hours to 8 days in lowest terms is 11.75 hours to 1 day

Answer y + 7 = 18 show your work

Answers

Answer:

11

Step-by-step explanation:

y+7=18

take away 7 by subtracting from both sides

y+7=18

-7. -7

y=11

Answer:

y+7=18(take +7 when it crosses the= sign it changes to -7)

y=18-7

y=11

I need an answer so I can get good grades

Answers

Answer:

Perimeter of figure = 36.3

Step-by-step explanation:

We'll begin by calculating the perimeter of the rectangle. This can be obtained as follow:

Length (L) = 9

Width (W = 4

Perimeter of rectangle (Pᵣ) =?

Pᵣ = 2(L + W)

Pᵣ = 2(9 + 4)

Pᵣ = 2(13)

Pᵣ = 26

Next, we shall determine the perimeter of semi circle. This can be obtained as follow:

Diameter (d) = 4

Pi (π) = 3.14

Perimeter of semi circle (Pₛ) =?

Pₛ = ½(πd) + d

Pₛ = ½(3.14 × 4) + 4

Pₛ = ½(12.56) + 4

Pₛ = 6.28 + 4

Pₛ = 10.28

Finally, we shall determine the perimeter of the figure. This can be obtained as follow:

Perimeter of rectangle (Pᵣ) = 26

Perimeter of semi circle (Pₛ) = 10.28

Perimeter of figure =?

Perimeter of figure = Pᵣ + Pₛ

Perimeter of figure = 26 + 10.28

Perimeter of figure = 36.28 ≈ 36.3

please no link answers

Phillip decides to invest $800,000 in a period annuity that earns 5.2% APR
compounded monthly for a period of 20 years. How much money will Phillip
be paid each month?
A. $6159.31
B. $5368.43
C. $5200.00
D. $6389.29

Answers

The compounded amount after 10 years would be $1,458,293.87.

What is the formula to calculate the compound interest?

The formula to calculate the compound interest is -

[tex]$A =P(1 + \frac{r}{n}) ^{nt}[/tex]

Given is that Phillip decides to invest $800,000 in a period annuity that earns 5.2% APR compounded monthly for a period of 20 years.

We can calculate the compounded amount as -

A = 800000(1 + 0.052/12)^(12 x 20)

A = 1,458,293.87

Therefore, the compounded amount after 10 years would be $1,458,293.87.

To solve more questions on compound interest, visit the link below -

brainly.com/question/25384702

#SPJ1

Answer: B. 5368.43

Step-by-step explanation:

Take my word.

10.30, 7.85____, 2.95, 0.50 which of the following should be placed in the blank above to complete the pattern?

6.30
5.40
4.85
3.45

Answers

The answer is C. 4.85

Really need help
Five less than twice what negative number squared is 157?

Answers

Answer:

-9

Step-by-step explanation:

2(-x)² - 5 = 157

2x² - 5 = 157

add 5 to each side of the equation:

2x² = 162

divide both sides by 2:

x² = 81

√81 = 9 or -9

A food truck sells burgers and hot dogs. During lunch, it sold 88 items for a total of $331. If burgers cost $4.50 and hotdogs cost $3.25, how many of each item were sold?

Answers

Number of burgers = b = 36
Number of hot dogs = d = 52


We know that b + d = 88 (they sold 88 items)
And 4.5b + 3.25d = 331 (price • number = money made)

So we will solve the first equation for b in terms of d, then substitute that in the second equation to sell for a numerical value of d.

b + d = 88
b = 88-d

4.5(88-d) + 3.25d = 331
396 - 4.5d + 3.25d = 331
-1.25d = -65 (divide both sides by -1.25)
d = 52

Now plug that into the first equation to get a numerical value for b.

b = 88 - d
b = 88 - 52
b = 36

Checking the math:
4.5(36) + 3.25(52) = 162 + 169 = 331

Please lmk if you have any questions

find the value of X in the triangle shown below

Answers

Answer:

62.

Step-by-step explanation:

The length 5.7 is the base since it is the side that isn't congruent to 1 mroe side. Therefore, the angles connected to it, including x, is congruent. Sum of angle in triangle=180. given angle 56. 180-56=124. x+x(congruent angles)=124. 2x=124. x=62.

Answer:

62

Step-by-step explanation:

180 - 56 = 124

124/2 = 62

20points!!!!
PLEASSEE HELPP
WILL GIVEE BRAINLIEST!!!!!!!!

Answers

I can’t press on it post it again

Muided Practice You Understand? Explain the steps involved in evaluating the expression 1. [(4 + 2) - 1] x 3.​

Answers

Answer:

Step-by-step explanation:

[(4 + 2) - 1] x 3

[6 - 1] x 3

5 x 3

15

the answer to the question is 15

A regression equation has been developed in order to help predict the amount of sales made in a clothing store each day (y) based on the number of square feet covered by the store's floor space (x). A sample of 100 similar clothing stores is collected, with floor spaces ranging from 100 square feet to 300 square feet. For each store, the floor space (in square feet) and the amount of sales made that day (in dollars) are recorded. The following regression equation is calculated:

y^ = 2,050 + 54x

Select whether or not each of the following conclusions are correct from the regression analysis: Fill in blank with ither response :Correct or Not correct

a. If the floor space of a store were to increase by one square foot, the predicted increase in sales would be $2,050. ______________
b. If a store has a floor space of 75 square feet, the predicted sales in a day is $6,100. ____________
c. If a store has a floor space of 175 square feet, the predicted sales in a day is $11,500._______________

Answers

Answer:

que

Step-by-step explanation:

no sé perdón

An independent-samples t test was conducted to compare high-altitude exercise to exercise at sea-level. Imagine the mean comfort level of participants, rated on a 7-point scale where high values reflect high comfort, at high altitude was 3.5 while the average at sea-level was 5.1. Imagine also that values were calculated for sdifference of 1.1, 2.04 for pooled variance, and 35 for degrees of freedom total. What are the critical cutoffs for this test

Answers

Answer:

-2.03, 2.03

Step-by-step explanation:

The degree of freedom (df) ;

Df total for the two samples = 35

Therefore, obtuaking the critical value using a T-test distribution at 95% confidence level.

(1 - 95%) / 2 = (1 - 0.95) / 2 = 0.05 / 2 = 0.025

Using a T critical value calculator or t table distribution ;

Tcritical, 0.025, df = 35 = 2.03

Left tail = - 2.03

Right = 2.03

Hence, critical cutoff :

(-2.03 ; 2.03)

Seth's homework assignment is to write factor pairs that contain only composite
numbers. Seth wrote four factor pairs for the number 132, as shown below.
6 x 22
11 x 12
3 x 44
2 x 66
Which of Seth's factor pairs contains only composite numbers?
F 6 x 22
G 11 x 12
H 3 x 44
J 2 x 66

Answers

Answer:

F. 6 x 22

Step-by-step explanation:

6 has more than two factors ( 1, 6, 2, 3), which makes it a composite number.22 has more than two factors (1, 22, 2, 11), which makes it a composite number.Therefore, F is the correct answer.

The Seth's factor pairs that contains only composite numbers are

6 × 22.

Composite numbers are numbers with more than 2 factors.

They are natural numbers or positive integers with more than 2 factors. Examples are 15, 10, 20 etc...

The Seth's factor pairs that contains only composite numbers are

6 × 22.

The factors of 6 are 1, 2, 3 and 6

The factors of 22 are 1, 2, 11 and 22.

They both have more than 2 factors.

read more; https://brainly.com/question/19271845?referrer=searchResults

Which Expressions Represent Area?

Answers

Answer:

Step-by-step explanation:

A sign on a barrel of nuts in a supermarket says that it contains 30% cashews, 30% hazelnuts, and 40% peanuts by weight. You mix up the nuts and scoop out 18 pounds. When you weigh the nuts, you find that you have 5 pounds of cashews, 4 pounds of hazelnuts, and 9 pounds of peanuts. Is there evidence to doubt the supermarket's claim

Answers

Answer:

The calculated χ² =   0.842   does not  fall in the critical region χ² ≥  5.99  so we accept the null hypothesis that all the proportions  are  equal and there is not enough evidence to doubt the supermarket's claim.

Step-by-step explanation:

1) We set up our null and alternative hypothesis as

H0: p1= 5/18, p2=  4/18, p3= 9/18

against the claim

Ha:  p1≠ 5, p2≠  4, p3≠ 9

2) the significance level alpha is set at 0.05

3) the test statistic under H0 is

χ²= ∑ (O - E)²/ E where O is the observed and E is the expected frequency

which has an approximate chi square distribution with  2 d.f

4) Computations:

Observed            Expected      χ²= ∑ (O - E)²/ E

5                            5.4               0.0296

4                            5.4                0.3629

9                            7.2               0.45                        

∑                                                 0.842            

5) The critical region is χ² ≥ χ² (0.05)2 = 5.99

6) Conclusion:

The calculated χ² =   0.842   does not  fall in the critical region χ² ≥  5.99  so we accept the null hypothesis that all the proportions  are  equal and there is not enough evidence to doubt the supermarket's claim.

Mr.Nolan paid $36.95 for each adult shirt and $23.95 for each youth shirt he bought.Mr.Nolan bought 2 adult shirts and 5 youth shirts.

Answers

Answer:

Mr.Nolan paid $193.65 in total for the shirts

Step-by-step explanation:

$36.95 (how much one adult shirt costs) x 2 shirts = $73.90

$23.95 (how much one youth shirt costs) x 5 shirts = $119.75

$119.75 (youth shirts total costs) + $73.90 (adult shirts total cost) = $193.65

Mr.Nolan paid $193.65 for the 2 adult shirts and 5 youth shirts.

Hopefully this helps :3 sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

only answering because why not

Step-by-step explanation:

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