Find the surface area of the hemisphere

Find The Surface Area Of The Hemisphere

Answers

Answer 1

Answer:

[tex] \boxed{Total \: surface \: area \: of \: hemisphere = 339.12\: {cm}^{2} } [/tex]

Step-by-step explanation:

Radius(r) = 6 cm

[tex]Total \: surface \: area \: of \: hemisphere = 3\pi {r}^{2} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3 \times 3.14 \times {6}^{2} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3 \times 3.14 \times 36 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 9.42 \times \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =339.12 \: {cm}^{2} [/tex]


Related Questions

Select the correct answer. The equation of a line is y=-3x-2. What are the slope and the y-intercept of the line? A. slope = -3 and y-Intercept = 2 slope = 3 and y-Intercept = -2 slope = 3 and y-intercept = 2 D. slope = -3 and y-intercept = -2

Answers

Answer:

D. The slope is -3 and y-intercept is -2

Step-by-step explanation:

The number attached to the x is the slope, which in this case is -3. The y-intercept is the number at the end of the equation, which in this case is -2.

best
A Response Options Calculator (ROCI can be used when responding to an oil spill to help predict how the oil will change over time and determine which methods can b
used to clean it. What is the benefit of this type of tool?
It allows the oil company to determine the amount of their losses.
It measures the weather conditions to let responders know if they can start cleaning.
It helps save time and money by finding the most effective clean up methods.
It assesses how many people will be needed to completely clean up the entire spill.
Question 13 Multiple Choice Worth 3 points)

Answers

Because the ROC can model the spill to determine how and where it will spread, the answer would be:

It helps save time and money by finding the most effective clean up methods.

Hi!

I'm happy to be able to help you today!

Your answer would be A,C,D!

This is because the tool is used to mesure all of that!

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HELP ASP PLEASE AND WITH THE CORRECT ANSWER !!!! I will give you 14 points !!! Which classification is correct for 2?

Answers

Answer:

number 2 is an acute angle if that is what you mean

Step-by-step explanation:

Answer:

right angle?

Step-by-step explanation:

you wernt spesific soooo, and bc there is a right angle box where "2" is placed

help me please, i dont understand, and i try ​

Answers

Answer:

B and D

Step-by-step explanation:

i think

Healthy Grains is planning a new design for its best-selling oatmeal. It has four containers to choose from. It costs the company $0.03 per cubic inch of oatmeal to fill a container. The company does not want the new container to cost more than $4.00 to fill. Which container should the company use? Use 3.14 for Pi. Container A Container B A cylinder with height 7 inches and diameter 5 inches. A cylinder with height 10 inches and B = 12.57 inches squared. Container C Container D A cylinder with height 5.5 inches and radius 4 inches. A cylinder with height 6 inches and radius 3 inches. container A container B container C container D

Answers

Answer:

b

Step-by-step explanation:

The school is planning to add 2 new playgrounds. Each playground will be in the shape of a square that measures 31 m by 31 m. What will be the area of the​ playgrounds?

Answers

Answer:

The two squares with side = 31m are added.

=> Total area: A = 2 x 31 x 31 = 1922 (m2)

Hope this helps!

:)

To be fair I don’t know the answer either I just felt like writing something

PLEASE HELPPPPP QUICKKKKK

Answers

Answer:

-6 is less than -5

Step-by-step explanation:

any negative number is always lower than a positive number

Answer:

Step-by-step explanation:

D

what is −5x+4y=3
x=2y−15


Answers

Answer:

x=9

y=12

Step-by-step explanation:

you know what the value of x is in terms of the second equation

so put that value into the first equation

so

-5(2y-15) + 4y = 3

-10y + 75 + 4y = 3

-6y + 75 = 3

-6y = -72

y = 12 (now we have the actual value of y, just substitute this into any of the first two original functions)

x = 2(12) - 15

x = 24 - 15

x = 9

Answer:

x = 9

y = 12

Step-by-step explanation:

To solve 12.5x = 215, you would ... 12.5 on both sides of the equation

Answers

Answer:

To solve you Divide by 12.5 on both sides

Answer: 17.2

Step-by-step explanation:

Find the answers to all the questions. 7th Grade math

Answers

Answer:

1) 178.54

2) 96

3) 141

To help with solving problems like this-these are some equations:

Square: l x h

Rectangle: l x h

Circle: π(r*2)

Triangle: (l x h) x 1/2

Hope this helps!

Name

olving

7. © MP.6 Be Precise Alyssa made a pink

and white striped blanket for her bed.

There are 7 pink stripes and 6 white

stripes. Each stripe is 8 inches wide.

How wide is Alyssa's blanket? Explain.

Answers

Answer:

104 Inches

Step-by-step explanation:

Alyssa's blanket contains 7 pink stripes and 6 white  stripes.

Total Number of Stripes =7+6=13

Since each stripe is 8 inches wide.

The width of Alyssa's blanket will be the product of the number of stripes by the width of each stripe.

Therefore:

Width = 13 X 8 Inches =104 Inches

Alyssa's blanket is 104 Inches wide.

Which of these numbers is an irrational number?

Answers

Answer:

square root of 25 and 5/3

Step-by-step explanation:

correct me if i am wrong

Answer: 25 and 5/3 hope it helps

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers. Divide the following polynomial and then place the answer in the proper location on the grid. Write your answer in order
of descending powers of y.
(y^3- y^2 + y + 3) ÷ (y + 1)​

Answers

Answer:

(y²- 2y + 3) will be the answer.

Step-by-step explanation:

The given expression is (y³ - y² + y + 3) ÷ (y + 1)

By using long division method,

y + 1) y³ - y² + y + 3 (y²- 2y + 3

        y³ + y²

            - 2y² + y

            -2y² - 2y

                      3y + 3

                      3y + 3

                             0

Here the quotient is (y² - 2y + 3) and the remainder is 0.

Therefore, answer will be (y² - 2y + 3).

Answer:

y^2-2y+3

Step-by-step explanation:

What is the mean of the numbers?

Answers

Answer:

1.6666666666666...

Step-by-step explanation:

10/6=5/3=1.6666666...

40 Points
What are the slope and the y-intercept of the linear function that is represented by the graph?

On a coordinate plane, a line goes through points (negative 3, 0) and (negative 2, 4).
The slope is 3, and the y-intercept is 9.
The slope is 3, and the y-intercept is 12.
The slope is 4, and the y-intercept is 9.
The slope is 4, and the y-intercept is 12.

Answers

Answer: The slope is 4 and the y-intercept is 12.

Step-by-step explanation:

(-3,0)  and (-2,4)

find the difference in the Y values  0-4=-4

find the difference in the v- values   -3-(-2) =-1

Divide the y difference by the x difference   -4/-1 = 4 so 4 is the slope

Now to find the y intercept, use the formula y=mx + b and plot in coordinates and slope to find the y- intercept

4= 4(-2) + b

4 = -8 + b

+8    +8

b= 12  so the y intercept is 12

now the equation will be like y = 4x + 12

(-3,0)  and (-2,4)

find the difference in the Y values  0-4=-4

find the difference in the v- values   -3-(-2) =-1

Divide the y difference by the x difference   -4/-1 = 4 so 4 is the slope

Now to find the y intercept, use the formula y=mx + b and plot in coordinates and slope to find the y- intercept

4= 4(-2) + b

4 = -8 + b

+8    +8

b= 12  so the y intercept is 12

now the equation will be like y = 4x + 12

A computer tech charges a $30 initial fee to come and fix a household computer plus $15 per hour. Which of the following linear equations does this follow?

Answers

Answer

45$

Step-by-step explanation:

if you only needs to be there for one hour it is for 45

if heis there for more hours then add 15 to the cost for every hou

solve the equation x² + 6x + 1 = 0

Answers

Answer:

Two solutions were found :

x =(6-√40)/2=3-√ 10 = -0.162

x =(6+√40)/2=3+√ 10 = 6.162

Step-by-step explanation:

Trying to factor by splitting the middle term

1.1     Factoring  x2-6x-1

The first term is,  x2  its coefficient is  1 .

The middle term is,  -6x  its coefficient is  -6 .

The last term, "the constant", is  -1

Step-1 : Multiply the coefficient of the first term by the constant   1 • -1 = -1

Step-2 : Find two factors of  -1  whose sum equals the coefficient of the middle term, which is   -6 .

     -1    +    1    =    0

The solutions to the equation x² + 6x + 1 = 0 are -0.177 and -5.823.

Given:

quadratic equation x² + 6x + 1 = 0

The quadratic formula states that for an equation of the form ax² + bx + c = 0, the solutions for x can be found using the following formula:

[tex]x = \dfrac{-b \pm \sqrt {(b^2 - 4ac)}}{2a}[/tex]

In our equation, a = 1, b = 6, and c = 1.

Now, let's plug these values into the quadratic formula:

[tex]x = \dfrac{-6 \pm \sqrt {(6^2 - 4(1)(1))}}{2(1)}[/tex]

x = (-6 ± √(36 - 4)) / 2

x = (-6 ± √32) / 2

Now, the two solutions for x:

1. x = (-6 + √32) / 2

      = (-6 + 5.66) / 2

      = -0.177

2. x = (-6 - √32) / 2

      = (-6 - 5.66) / 2

       -5.823

So, the solutions are -0.177 and -5.823.

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Evaluate (25)2 · 52 + 10

Answers

Answer:

2610

Step-by-step explanation:

For this question, we can use P.E.M.D.A.S.

Parentheses

Exponent

Multiplication

Division

Addition

Subtraction

(25)2 * 52 + 10

50 * 52 + 10

2600 + 10

2610

Following the order that Multiplication and Division is first than Sum and Rest then

25 x 2 x 52 = 2600 + 10 = 2610

Write a real world problem that could represent the bar diagram shown

Answers

Answer:

Matt  had 12 cookies his 2 other friends came over and divided them equally with them now each of them had four.

Step-by-step explanation:

The real world problem that could represent the bar diagram is,

'' Jean have $12 in his bank account. If he spend 2/3rd part of balance account, then what he had now?''

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

A bar diagram is shown in figure.

Now, We can make a real world problem that could represent the bar diagram.

So, We get;

'' Jean have $12 in his bank account. If he spend 2/3rd part of balance account, then what he had now?''

Clearly, Above question represent the the bar diagram shown.

Learn more about the mathematical expression visit:

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Please answer correctly !!!! Will mark brainliest !!!!!!!

Answers

Answer:

the answer is 1

Step-by-step explanation:

The cost of 6 sandwiches and 4 drink is $53. The cost of 4 sandwiches and 6 drinks is $47. How much does one sandwich cost?

Answers

Answer:

sandwich = 6.50

Step-by-step explanation:

Let s = sandwich price

d = drink price

6s + 4d = 53

4s + 6d = 47

Multiply the first equation by 3

18s + 12d = 159

Multiply the second equation by -2

-4s - 12d = -94

Add these equations together

18s + 12d = 159

-8s - 12d = -94

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

10s = 65

Divide by 10

s = 65/10

s =6.5

Brett deposited $3200 into a savings account for which interest is compounded quarterly at a rate of 2.4%. How much interest will he earn after 15 years? $300.42 $768.14 $1367.19 $1381.72

Answers

Answer:

$1,367.19

Step-by-step explanation:

Answer: $1381.72

Step-by-step explanation:

A= P(1+r/n)^nt

(Compounded quarterly= 4)

step 1.

3200(1+0.024/4)^(4)(15):

3200(1+0.006)^60= 4581.72

step 2.

4581.72- 3200= 1381.72

Can someone please help me with this question??

Answers

Answer:

Step-by-step explanation:

Discount =5% of x = 0.05x

Price after discount = x - 0.05x  = 0.95x

Tax = 5% of 0.95x = 0.05*0.95x

    =0.0475x

Price including tax = 0.95x + 0.475x = 0.9975x

Find the zeros of the function. Enter the solutions from least to greatest.

f(x) = (x - 4)^2 - 25
lesser x=
greater x=

Answers

Answer:

In conclusion,

lesser x =−1

greater =9

Step-by-step explanation:

The zeros of the function f(x) = (x - 4)² - 25 are -1 and 9, and the solutions from least to greatest are -1, 9.

What is a function?

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

To find the function's zeros, we need to solve for f(x) = 0.

We can simplify the given function as:

f(x) = (x - 4)² - 25

= (x - 4 + 5) (x - 4 - 5)

= (x + 1)(x - 9)

Now, we can set each factor equal to zero to find the zeros of the function:

x + 1 = 0 or x - 9 = 0

Solving for x in each equation, we get:

x = -1 or x = 9

Therefore,

The zeros of the function f(x) = (x - 4)² - 25 are -1 and 9, and the solutions from least to greatest are -1, 9.

Learn more about functions here:

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What is the solution to the system of equations below?
y = -3/4x + 3 and y = –12

1. (20, -12)
2. (12, -12)
3. (-6,-12)
4. (-12,12)

Answers

Answer:

(20, -12)

Step-by-step explanation:

it is (20, -12)

-(3/4)x+3=-12

x=20

-3/4(20)+3=-12

I NEED HELP.


using the digits 1 to 9 at most one each time, fill in the boxes to make the greatest (or least) product

__ • 10 (to the _ power) • __ • 10(to the _power)

Answers

Answer:

Step-by-step explanation:

5 lol

Help!!!
I need the answer please

Answers

You do length*height*width
So 19*19*19 which is 6859

Answer:

[tex]6859 {ft}^{3} [/tex]

Step-by-step explanation:

[tex]V

=

w

h

l

\\

=

19

·

19

·

19

\\

=

6859 {ft}^{3}

[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

3x+17<47
-6x+9<25
Solve the inequalities and make a number line

Answers

Answer: Read below.

Step-by-step explanation:

[tex]3x+17<47\\-6x+9<25[/tex]

Let's take the first one.

[tex]3x+17<47[/tex]

Subtract 17

[tex]3x<47-17\\3x<30[/tex]

Divide by 3

[tex]x<\frac{30}{3}\\ x<10[/tex]

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

Now the second one.

[tex]-6x+9<25\\-6x<25-9\\-6x<16[/tex]

Here's the trick. You need to divide by -6; however, there's a rule. When you multiply or divide by negative numbers, the inequality sign flips.

[tex]x>\frac{16}{-6}[/tex]

[tex]x>-\frac{8}{3}[/tex]

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

x has to be less than 10

x has to be greater than [tex]-\frac{8}{3}[/tex] or -2.66 approximately.

in the number line, make a hollow circle on [tex]-\frac{8}{3}[/tex] and draw an arrow up to [tex]10[/tex] where, again, you have to make a hollow circle. The circles have to be hollow because neither [tex]-\frac{8}{3}[/tex] nor 10 are part of the answers.

(25 points!!!!) draw the graph of the area bounded by these inequalities

Answers

Step-by-step explanation:

To draw the graph, follow these steps:

Graph the lines using points from the equations. (the blue line shown should be dotted, unfortunately I cannot do that in the program I used)Determine which direction the inequalities are correct.  Find the boundary given.

The three inequalities given form a triangle.

The first equation, y ≤ 2x + 5, has a y-intercept at (0, 5) and a point at (-2, 1).

The second equation, y < -3x + 10, has points at (3, 1) and (2, 4).

Use two points to draw the lines.

After the lines are drawn, determine which side of the line the inequality works on. You can do this by testing points that are not on the line.

I will test each inequality using (0, 1):

y ≤ 2x + 5

0 ≤ 2 + 5

This is correct, so the inequality for y ≤ 2x + 5 will be shaded towards (0, 1).

y < -3x + 10

0 < -3 + 10

This is correct, so the inequality for y < -3x + 10 will be shaded towards (0, 1).

0 ≤ 1

This is correct, so the inequality for 0 ≤ y will be shaded upwards towards (0, 1).

The end result of this graph is all three inequalities being shaded (inwards).

The solution is a triangle with points at (1, 7), (3.33333, 0), and (-2.5, 0).


A. 9
B. 43%
C. 153
D. 11

Answers

The answer is A.

You must factor the numerator and denominator and cancel the common factors.

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