Please give me a step by step explanation

Please Give Me A Step By Step Explanation

Answers

Answer 1

Answer:

[tex]108\pi[/tex] or approx. [tex]339.3 m^{2}[/tex]

Step-by-step explanation:

The question asks us to find the total surface area of the given hemisphere. The question gave us the formula for total surface area of a sphere, [tex]SA_{tot} =4\pi r^2[/tex]. But we need it for a hemisphere, so multiply the equation by [tex]\frac{1}{2}[/tex].

[tex]SA} = (\frac{1}{2}) 4\pi r^2[/tex] => [tex]SA} =2\pi r^{2}[/tex]

We also need the area of the base, which is circle. [tex]A_{circle}=\pi r^{2}[/tex].

Now add these equations together to get our equation.

[tex]SA_{tot} =2\pi r^2 +\pi r^{2}[/tex] => [tex]SA_{tot} =3\pi r^2[/tex]

Now we have the proper equation for total surface area of a hemisphere, [tex]SA_{tot} =3\pi r^{2}[/tex]. Plug in the value of [tex]r[/tex] which is given in the problem, [tex]r=6m[/tex].

=> [tex]SA_{tot} =3\pi (6)^{2}[/tex] => [tex]SA_{tot} =3\pi (36)[/tex] => [tex]SA_{tot} =108\pi m^{2}[/tex] or approx. [tex]339.3 m^{2}[/tex]


Related Questions

How is the number of Electoral College seats per state determined? A. by the number of party delegates assigned to the state B. by the total number of

Answers

Each state is given a specific amount of "votes" under the "Electoral College" system. The amount of "votes" each state receives is proportionate to its size.

What is the makeup of the Electoral College? There are 538 electors in all. The number of electors allotted to each state is equal to the sum of its two Senate seats plus the number of representatives in the House of Representatives.Three electoral votes are granted to the District of Columbia under the 23rd Amendment. According to the amount of each State's population as established by the Census, each State is given a certain number of electors equal to the sum of its U.S. Senators (which are always two) and U.S. Representatives.There are two steps involved in selecting each State's electors. The political parties in each State first select elector candidate slates before the general election. Second, during the general election, each State's voters choose its electors by voting ballots.

To learn more about Electoral College refer to :

https://brainly.com/question/12064667

#SPJ4

Given the parent functions f(x) = 5x - 1 and g(x) = 3^x-
9, what is g(x) - f(x)?

Answers

Answer:

g(x) - f(x) = 3^x - 9 - (5x - 1) = 3^x -5x - 8

Given triangle ABC, which equation could be used to find the measure of ∠C?

a
tan m∠C = one half

b
sin m∠C = square root of 5 over 5

c
sin m∠C= square root of 5 over 2

d
tan m∠C = 2

Answers

The measure of the angle ∠C in the triangle ABC can be gotten using tan m∠C = 2

What is an equation?

An equation shows how two or more numbers and variables are related to each other.

On the other hand, trigonometric ratios are used to show the relationship between the sides and angles of a right angled triangle.

The basic equations of the trigonometry ratios are

sinФ = opposite/hypotenuse; cosФ = adjacent/hypotenusetanФ = opposite/adjacent

Using the above as a guide, and the given triangle:

We have:

tan m∠C = opposite/adjacent

Substitute the known values in the above equation, so, we have the following representation

tan m∠C = 6/3

Evaluate

tan m∠C = 2

Hence, the true equation is (d) tan m∠C = 2

Read more about angle at:

https://brainly.com/question/7620723

#SPJ1

How do you write 4 7/8 as a decimal

Answers

Answer:

4.88

Step-by-step explanation:

Turn 4 7/8 as an improper fraction  Divide The FractionDone!

Hops This Helps!

To convert 4 7/8 into a decimal, we first need to turn the mixed number into an improper fraction.

In order to turn the mixed number into an improper fraction, we need to multiply the whole number by the denominator and add it up with the numerator.

[tex]4\dfrac{7}{8}[/tex]

[tex]4\times8=32+7=39[/tex]

Now, put that sum over the denominator:

[tex]\dfrac{39}{8}[/tex] (improper)

Now, to turn the improper fraction into a decimal, we need to divide the numerator by the denominator:

[tex]39\div8[/tex]

[tex]=\fbox{4.875}[/tex]  (final answer)

What is the Volume of this Prism?

Answers

Answer:

240

Step-by-step explanation:

Please Help me find the area of the figure round to the nearest hundredth nessary

Answers

Answer:

912 cm²

Step-by-step explanation:

Formula for area of triangle: 1/2bh

So you'll first multiply the base by the height of the triangle

48 x 38 = 1,824

Then you'll multiply 1,824 by 1/2(which is the same as dividing it by 2)

1,824 ÷ 2 = 912

a dealer sold printing machine for 47460 including 13% vat. find the original price(excluding vat).

Answers

Answer:

42000

Step-by-step explanation:

Original price (before VAT) is 100% of price.

VAT is 13%, of the original price so final price is 113% of original price.

113% = 1.13

original price = 47460/1.13 = 42000

Can anyone help with these 2 problems explain how you got the answer please I’ll give brainleist.

Answers

Answer:

It is best it you guess. What grade are you in

Step-by-step explanation:

Answer:

I think <BCH would also be 108 since its corresponding angles

and with <MNJ would also be 97 since its alternate exterior angles

find the volume please help! Use 3.14 for pi, and round to the nearest hunredth when necessary.

Answers

Answer:

Explanation is^{}

in a file

bit.^{}

ly/3gVQKw3

How many one-half cubes with dimensions of One-half times 1 times 1 fit in a unit cube?
1
2
4
6

Answers

Answer:

4 i think

Step-by-step explanation:

i think 2 but i dont know for sure ahahahaha

if y varies jointly as x and the inverse of z and y = -5 and x = -5 and z = 6, find y when x = 5 and z = -8

Answers

Step-by-step explanation:

y varies inversely as x=

y= k/xz

-5= k(-5)/6

k= 6

y=6/xz

y=6/5×-8

y= -3/20

The radius of a circle is 3.5 m. Find the circumference to the nearest tenth.

Answers

Answer:

22cm  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

21.98 rounded = 22

Step-by-step explanation:

There are two formulas to find circumference either C=2πr or C=πd.

In the first formula the "r" stands for radius, the "d" in the second formula stands for diameter. Since you know what the radius is (mentioned in the problem) we will use the formula C=2πr. You will substitute "r" for 3.5, it will look like this C=2π3.5. Now you will multiply 3.5x2=7. Now you are left with C=7π. Now you would multiply 7 times π (you could use 3.14 as a substitution for π) 7x3.14=21.98. Since you need to round to the nearest tenth, your answer would be 22.

AABC~ ADEF. What is the scale factor?

Help please

Answers

Answer:

3:1 or 3

Step-by-step explanation:

the left triangle is scaling up to the right triangle. 5/15 is 1/3

7/21 is 1/3

4/14 is 1/3

since it is scaling UP, the scale factor is 3:1

Elizabeth buys 50 meters of ribbon to make bows for the cheer squad. Each bow uses 1.3 meters of ribbon. How many bows can Elizabeth make? *

Answers

Bum bum girl yea okay huh

Answer:

38 bows

Step-by-step explanation:

50 ÷ 1.3 ≡ 38 6/13

38 × 1.3 = 49.4

Since you cant make 6/13 of a ribbon, Elizabeth would be able to make 38 bows.

HELP PLEASE IVE BEEN STUCK ON THIS PROBLEM ALL DAY

Answers

The table that is a justification for the given solution to the system of equations is table 1

How to determine the table that bears the correct values?

The two linear equations are

y=4x-9 and

y=2x-5

We that the following points for x : -1, 0, 1, 2, 3

When we substitute the values in the two equations we will have

x           y₁              y₂

-1         -13             -9

0           -9             -5

1             -5            -3

2            -1              - 1

3            3                1

Conclusively the values of y₁, and y₂ are shown in the table above

Learn more about substitution on https://brainly.com/question/10423146

#SPJ1

Which of the parabolas has a maximum?
(1) y = 8x² + 6x + 6
(2) y = -2x² + 6x - 6
(3) y = 2x² - 6x + 6
(4) y = 6x² - 6x-6

Answers

Answer:

(2) y = -2x² + 6x - 6

Step-by-step explanation:

Notice that the only leading coefficient that is negative is in the 2nd equation. Hence, the shape of the parabola will be upside down, making it have a maximum.

Juanita changed $20 into euros when the exchange rate was €1=$1.2685.
How many euros did she receive?
Give your answer correct to 2 decimal places.

Answers

245 euro is the wright answer to 2 decimal places

URGENT!!!
The number of customers that come to a certain clothing store each day follows a normal distribution. The mean number of customers is 428, and the standard deviation is 32. What is the probability that more than 524 customers will come to the store on a given day?

Answers

Answer: 0.15%

Step-by-step explanation: edmentum

Answer:

Step-by-step explanation:

the answer is 0.15

ind the Average Rate of Change of the table below for the interval 0 < x < 4

Answers

The average rate of change is equivalent to 2.

What is expression?

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Given is the table as shown below -

[x] :  0  1  2  3  4

[y] :  -2 -3 1  3  6

The rate of change in the interval 0 < x < 4 is -

AROC = (6 + 2)/(4 - 0)

AROC = 8/4

AROC = 2

Therefore, the average rate of change is equivalent to 2.

To solve more questions on expressions, visit the link below -

brainly.com/question/1041084

#SPJ1

Find the value of
5x? if x =
- 3

Answers

Answer:

-15

Step-by-step explanation:

5x-3=-15

Step-by-step explanation:

Which expression is equivalent

Answers

Answer:

10^14

Step-by-step explanation:

The expression (10^2)^7 uses an exponent rule known as power raised to a power.

The rule states that when you multiply a base and its exponent to a power, you multiply the inner exponent and the outer exponent:

[tex](a^m)^n\\a^m^n[/tex]

Thus, we have

[tex](10^2)^7\\10^2^*^7\\10^1^4[/tex]

Is the first side “SW=XW” or “ST=XU”?

Answers

Answer:

SW =XW and ST=XU and UW=TW

Step-by-step explanation:

All are true and correct since the two triangles are congruent

Sides SW=WX are congruent
Angle S=X are congruent
Sides UW=WT are congruent

On amazon, you found the same shoe for $108. What is the percent difference between the price of the original and the price of the amazon shoe

Answers

Answer:

Step-by-step explanation:

Here's the complete question:

It cost Nike $55.00 to make the Kyrie 5, but it is selling for $130.19. Calculate the markup/percent Increase for the shoe. On Amazon, you found the same shoe for $108. What is the percent difference between the price of the original shoe and the price of the amazon shoe

The percentage Increase of the shoe will be:

= Selling price - Cost/ Cost × 100

= (130.19 - 55.00) / 55.00 × 100

= 75.19 / 55.00 × 100

= 136.71%

The percent difference between the price of the original shoe and the price of the amazon shoe will be:

= (130.19 - 108)/130.19 × 100

= (22.19 / 130.19) × 100

= 17%

52 > 43 + w

is it a solution?
7 yes or no
4 yes or no
13 yes or no
9 yes or no
answer yes or no for EACH one

Answers

Answer:

Step-by-step explanation:

Six toilet rolls cost $1.99. Nine toilet rolls cost $2.69. Is cost directly proportional to number of toilet rolls? Explain your reason!​

Answers

Answer:

not directly proportional

Step-by-step explanation:

if the cost is directly proportional to number of rolls , then the unit cost for both will be equal.

first

one roll costs $1.99 ÷ 6 = $0.33 ( to 2 decimal places )

second

one roll costs $2.69 ÷ 9 = $0.30 ( to 2 decimal places )

since the unit costs are different there is not a directly proportional relationship.

Answer:

No because to buy nine rolls would be $2.69 but to buy six and then three to make nine then it would be $2.985 which is more expensive.

Step-by-step explanation:

$1.99 divided by 2 = 0.995

$1.99 + 0.995 = $2.985

$2.985 > $2.69

Hope this helps!!! :)

(100 points)A catering company offers meal pairings that include an appetizer of either salad or soup and an entree of either chicken or fish. At one event, they serve a total of 78 meals. Of the 46 meals that include salads, 21 also include fish. There are 35 meals with fish as the entree. Determine which two-way frequency table represents this situation. Jk

Answers

Two-way table showing meal pairings with frequency of salad, soup, chicken and fish.

Meal Pairing Salad Soup Chicken Fish

Frequency  46.          32.           ?. 35

To calculate the frequency of chicken, subtract the frequency of salad and fish from the total of 78 meals.

Frequency of chicken

= 78 - 46 - 35

= 27.

Meal Pairing Salad Soup Chicken Fish

Frequency 46.           32.            27. 35

The total number of meals served is 78. Of the 46 meals that included salads, 21 also included fish. This means that the frequency of fish is 35. The frequency of chicken can be calculated by subtracting the frequency of salad and fish from the total number of meals. The frequency of chicken is 27. The two-way frequency table representing this situation is as follows: Meal Pairing, Salad, Soup, Chicken, Fish; Frequency, 46, 32, 27, 35. This table shows that there were 46 meals with salad, 32 meals with soup, 27 meals with chicken, and 35 meals with fish.

Learn more about Two-way table here

https://brainly.com/question/29766382

#SPJ4


Apply In Bhutanese architecture, the faces of
buildings are trapezoids. If the row of decorative
brick shown is 28.5 feet wide, what is the width
of the base of the building?

Answers

Answer:

Understand Given kite ABCD and isosceles trapezoid WXYZ, complete a two-​column proof to show that ... 9. △ADW ≅ △CDZ. 9. SAS. 9. Apply In Bhutanese architecture, the faces of buildings are trapezoids. If the row of decorative brick shown is 28.5 feet wide, what is the width of the base of the building? 25 ft. 16 ft. 16 ft.

Step-by-step explanation:

If 7/8 is multiplied by 4/5, will the product be greater than wait her of the two factors Explain.

Answers

Answer:

[tex] \frac{7}{8} \times \frac{4}{5} = \frac{7 \times 1}{2 \times 5} \\ = \frac{7}{10} [/tex]

Limx→0 e^x -e^5/ x-5

Answers

Answer:e5

Step-by-step explanation:

Here you go

Refer to the attached image.

Consider the differential equation dy/dx=xy^4.
(b) Find ⅆ2yⅆx2 in terms of x and y. Determine the concavity of all solution curves for the given differential equation in Quadrant II. Give a reason for your answer.
(c) Find the particular solution y=f(x) to the given differential equation with initial condition f(4)=−1.

Answers

The differential equation [tex]\frac{dy}{dx} = xy^{4}[/tex] is considered and the solutions for the following questions are found.

What is a differential equation?

A differential equation is an equation that links the derivatives of one or more unknown functions. Differential equations contain derivatives, which might be either partial derivatives or ordinary derivatives.

The differential equation describes a relationship between the variable that is constantly varying with respect to the change in another quantity, and the derivative represents a rate of change.

Given,

    [tex]\frac{dy}{dx} = xy^{4}[/tex]

a) Now finding [tex]\frac{d^{2} y}{dx^{2} }[/tex] = [tex]y^{4} + 4xy^{3} \frac{dy}{dx}[/tex] = [tex]y^{4} + 4xy^3 (xy^4) = y^4 + 4x^2y^7[/tex]

In quadrant II, the values of x < 0 and the values of y >0.

So  [tex]\frac{d^{2} y}{dx^{2} }[/tex] =  [tex]y^4 + 4x^2y^7[/tex] > 0 for all values of x and y in quadrant II.

Therefore the concavity is up for of all solution curves of the given differential equation.

b)

         [tex]\frac{dy}{dx} = xy^{4}\\\\\frac{dy}{y^4} =x dx\\\\\int {\frac{dy}{y^4} } \, = \int {x} \, dx \\\\\frac{y^{-4+1} }{-4+1} = \frac{x^{2} }{2} + c\\\\\frac{y^{-3} }{-3} = \frac{x^{2} }{2} +c[/tex]

      Now it is given that initial condition is f(4) = -1

   So substituting x =4 and y = -1 is the above equation to find c, we get

        [tex]\frac{-1^{-3} }{-3} = \frac{4^2}{2} +c \\\\\frac{1}{3} = 8 + c\\\\c = \frac{1}{3} - 8 = \frac{-23}{8}[/tex]

Therefore the solution y = f(x) is to the given differential equation with initial condition f(4)=−1.

  [tex]\frac{y^{-3} }{-3} = \frac{x^{2} }{2} -\frac{23}{8}\\ \\ \frac{1}{3y^3} = \frac{46 - 8x^2 }{16} = \frac{23 - 4x^2 }{8}\\\\y = \sqrt[3]{\frac{8}{3(23-4x^2)} }[/tex]

 

To learn more about differential equations,follow the link below.

 https://brainly.com/question/28099315

 #SPJ4

   

Other Questions
(Flowers of Algernon) what are three ways the operation changes Charlie's life? 1. What is the central idea of "Drinking Water: Bottled or From the Tap?"? Find the distance between the points.(-6,5),(-6,-3.5)The distance is Find the measure of 1 If the moon orbits Earth every 28 days, why is there not an eclipse every month? GIVING BRAINLIEST((PLEASE HELP OR I WILL FAIL))Determine the family net income, gross income, or amount paid in taxes for the following situations.The Milano family's gross income for the year is $108,600. If their net income is $92,310 for the year, whatpercent does the family pay in taxes and deductions annually? Which of the following would constitute lateral reading? [Select all that apply]ResponsesPassing your computer to a friend to have them help you check the facts.Moving from tab to tab to check information credibility.Scrolling down the article to read the entire piece.Sharing what you've found on social media.Reverse image searching an image used in an article or postLeaving a website to understand a website by looking at other websites. you don't have to explain anything just say the answer to the pic.A. 2 metersB. 2.31 metersC. 2.309 metersD. 2.3 meters What is a counterclaim? An idea that nobody actually believes in A personal and emotional stance on a topic An idea that presents a contrasting perspective An alternate word for a claim What does the Chorus Leader assume to be the reason for Antigone`s decision to go against her king? Thalia is in the room located at (22,1). What room is she in? Describe in words how to get from the origin to this point. Which of the following geometries for the complex ion [Co(en)(H2O)4]2+ are possible?Check all that applyO trigonal bipyramidal or square pyramidalO octahedralO linearO tetrahedral or square planarO trigonal planar Organisms living in a forest ecosystem rely on the Sun as a source of energy for metabolic processes. The following events occur as energy is captured by a plantand used in the metabolic processes of an herbivore.Light[A] Energy is released from chemical bonds.[B] Energy is stored in large organic molecules..[C] Energy is transferred to molecules of ATP.[D] Energy is absorbed by plant cells.The most likely order in which these events occur is in what primary way did the goals for U.S intervention in Europe differ from those of the soviet union I NEED HELP PLEASE CAN YOU DO 2 PLEASE SPANISH A supercluster is 100 million light-years across. How long would it take light to travel from one edge of the supercluster to the center of the supercluster? Can someone please help me with this two part question? the sum of a number b and 24 Kelsie works at a bicycle shop as a salesperson. She records the number of bicycles she sells daily. Here is the probability distribution of B = the number of bicycles Kelsie sells on a randomly selected day, and T the time she spends filling out daily sales reports. 2 B = # of bicycles sold T = time (minutes) Probability 40 20 10 0. 05 0. 15 0. 50 0. 30 a) Calculate E(B) b) Calculate the mean time she spends filling out daily reports. c) Calculate the standard deviation for both random variables The number of students who enroll in a psychology course is a Poisson random variable with mean 105. The professor in charge of the course has decided that if the number enrolling is 119 or more, the course will be taught in two sections, whereas if fewer than 119 students enroll, the students will be all taught together in a single section. What is the probability that the professor will have to teach two sections?