Calculate the area of a circle with a radius of 8 feet

Answers

Answer 1

Answer:

201.06 square feet

Step-by-step explanation:

area of a circle is given by πr², where π = 3.1416

A = 3.1416 * 8²

A = 3.1416 * 64 = 201.0624 square feet

A = 201.06 square feet


Related Questions

Two Pairs Of Jeans Cost $75 before tax. If the total paid for the two pairs of jeans with tax was $81, what is the percentage of tax paid? Show work please​

Answers

Answer:

31%

Step-by-step explanation:

100- 75 = 25

25/81 = 0.308 = 31%

First, find what percentage of the total price the jeans are. Price of jeans divided by total cost paid

75/81=.9259 the jeans were 92.59% of the total cost; the rest is tax. So you subtract 92.59% from 100% (the total cost paid) and get 7.41% sales tax

What is the value of the positive zero of the function , f, defined by f(x) =x^2-121

Answers

Answer:

The positive zero is 11

Step-by-step explanation:

Given in the question an equation,

f(x) =x² - 121

We are asked to find the positive zero of f(x)

means x > 0 for which f(x) = 0

so,

 x² - 121 = 0

 x² = 121

Take square root on both sides of the equation

√x² = √121

  x =  ±11

which means that x = 11 and x = -11

Since x > 0 so we will reject x =-11 and we will accept x = 11

 

Answer: 11

Step-by-step explanation:

You need to substitute [tex]f(x)=0[/tex] into the function given:

[tex]f(x) =x^2-121\\0 =x^2-121[/tex]

Now you need to solve for the variable "x", to do this, first you must add 121 to both sides of the function:

[tex](121)+0=x^2-121+(121)\\121=x^2[/tex]

Now apply square root to both sides of the function. Then, you get:

[tex]\±\sqrt{121}=\±\sqrt{x^2}\\\\\±\sqrt{121}=x\\\\x_1=11\\x_1=-11[/tex]

The value of the positive zero of the function is 11.

Quick help needed, need someone to check my answer.

Mario’s Company makes unusually shaped imitation gemstones. One gemstone had 12 Faces and 20 edges. How many vertices did the gemstone have?
A. 34 Vertices
B. 10 Vertices (My answer)
C. 30 Vertices
D. 8 Vertices

Answers

Answer:

it has to be 8 because I subtracted and that was my answer for It

If 10-2=33 , 37-23=83, 82-4=83, 55-7=32, then 76-45 ????

Answers

Answer:

i think value 35

Step-by-step explanation:

can help me understand this?

Answers

Answer:

Its easy just fill in the blacks

Step-by-step explanation:

P1 is 5 P2 is 2 P3 is 4 and so on now the odd and even u add the odd number together and the even together like 2+2+1 (the even side) =5 so put 5 in the even and do the same thing to odd 5+4+6 = 15 and put 15 on odd #

Hope this helps!

Can You Please Help Me.​

Answers

Answer:

flip the > to a <

when it's negative always flip the sing

23.791 to nearest hundredth

Answers

Answer:

23.79

Step-by-step explanation:

one is less than 5 so you just drop it

Answer:

23.79

Step-by-step explanation:

In the number 23.791, the number place holding the 9 is the hundreth's place. Now look at the thousands place, the number place holding the 1.

If the number in the thousands place is 5-9, round up to 23.8

If the number in the thousands place is 1-4, round down to 23.79

Since 1 is smaller than 5, round doqn to 23.79

I hope this helps!

The tip of a solid metal cone was placed into a cube that has 10 inch edges, as shown.
If the water in the cube rose from 6 inches to 8 inches when the cone was placed in the cube, what is the
radius of the base of the submerged portion of the cone?

Answers

Answer:

[tex]r=\sqrt{\dfrac{75}{\pi}}\approx 4.89\ in[/tex]

Step-by-step explanation:

If the water in the cube rose from 6 inches to 8 inches when the cone was placed in the cube, then the difference in volumes is the volume of the submerged portion of the cone.

Initially, 10 in by 10 in by 6 in:

[tex]V_{initial}=10\cdot 10\cdot 6=600\ in^2.[/tex]

At he end, 10 in by 10 in by 8 in:

[tex]V_{final}=10\cdot 10\cdot 8=800\ in^3.[/tex]

Thus,

[tex]V_{submerged \ cone}=800-600=200\ in^3.[/tex]

Use cone's volume formula

[tex]V_{cone}=\dfrac{1}{3}\pi r^2 \cdot h,[/tex]

where r is the radius of the cone's base, h is the height of the cone.

From the diagram, h=8 in, then

[tex]200=\dfrac{1}{3}\cdot \pi\cdot r^2\cdot 8\\ \\\pi r^2=75\\ \\r^2=\dfrac{75}{\pi}\\ \\r=\sqrt{\dfrac{75}{\pi}}\approx 4.89\ in[/tex]

Find the midpoint of the line segment whose endpoints are (-2, 5) and (6, -9).

Answers

Answer: (2, -2)

To find the x coordinate of the midpoint: (-2+6)/2

To find the y coordinate of the midpoint: (5+(-9))/2

Answer:

The mid point is (2, -2).

Step-by-step explanation:

Since, the coordinates of mid point of a line segment having end points [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are,

[tex](\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})[/tex]

Thus, the midpoint of the line segment whose endpoints are (-2, 5) and (6, -9) would be,

[tex](\frac{-2+6}{2}, \frac{5-9}{2})[/tex]

[tex](\frac{4}{2}, \frac{-4}{2})[/tex]

[tex](2, -2)[/tex]

solve f(t)=-16t^2+20t

Answers

Answer:

Step-by-step explanation:

Factor −16t2+20t

−16t2+20t

=4t(−4t+5)

Answer:

4t(−4t+5)

or

Let's simplify step-by-step.

−16t2+20t

There are no like terms.

Answer:

=−16t2+20t

The equation f(t)=-16t^2+20 when solved gave t = 0 and t = 1.25.

To solve the quadratic equation f(t)=-16t^2+20t, we first need to rearrange it into the standard form of a quadratic equation at^2 + bt + c = 0. We can simplify the original equation by dividing all terms by -4, which will reverse the signs:

4t^2 - 5t = 0

Now, this equation can be factored, giving us:

t(4t - 5) = 0

This means our equation has two possible solutions for when it equals zero:

t = 0 or 4t - 5 = 0

Solving the second part for t gives us t = 5/4 or 1.25.

Therefore, the equation f(t) = -16t^2 + 20t has two solutions for t: t = 0 and t = 1.25.

Loren compares the fractions 2/3 and 5/8 by first rewriting them using a common numerator. He does everything correctly. Which shows Loren’s comparison?

A. 5/6 > 5/8
B. 10/3 < 10/8
C 10/15 < 10/16
D 10/15 >10/16

Answers

Answer:

D 10/15 > 10/16

Step-by-step explanation:

The least common multiple of 2 and 5 is 10.

2/3 = 10/15

5/8 = 10/16

10/15 > 10/16

Answer: D.

Final answer:

When Loren compares 2/3 and 5/8 using a common numerator, he finds that by making both numerators 10 (10/15 and 10/16), 10/15 is less than 10/16, because the fraction with the larger denominator is the smaller fraction.

Explanation:

To compare the fractions 2/3 and 5/8 by rewriting them using a common numerator, Loren has to find a common multiplier for each numerator that would make them equal. He could multiply the numerators and denominators of both fractions by the other fraction's numerator. For 2/3, he would multiply by 5, and for 5/8, he would multiply by 2. This gives:

For 2/3: (2\*5)/(3\*5) = 10/15

For 5/8: (5\*2)/(8\*2) = 10/16

Now, Loren can compare the fractions easily since they have the same numerator:

Option C: 10/15 < 10/16

This is because, with the same numerator, the fraction with the larger denominator is the smaller fraction.

m u c h h e l p n e e d e d

Answers

Answer:

Statements 2 and 3 are true

Step-by-step explanation:

Reading from the table

When x = -4, y = -1  so statement 1 is false

When x = -1, y = -2.5 so statement 2 is true

When x = 0, y = -3  so statement 1 is true

When x = 2, y = -4 so statement 2 is false

Answer:

Statements 2 and 3 are true

Step-by-step explanation:

Reading from the table

When x = -4, y = -1  so statement 1 is false

When x = -1, y = -2.5 so statement 2 is true

When x = 0, y = -3  so statement 1 is true

When x = 2, y = -4 so statement 2 is false

Which statement is true about these triangles?

Answers

Answer:

ΔADC ≅ ΔCBA by the SSS congruence postulate

Step-by-step explanation:

This is because of the following:

AD ≅ CB

DC≅AB

lastly, AC≅AC,

however ΔADC ≅ ΔABC by the SSS congruence postulate is also true since ΔABC and ΔCBA is just the same triangle. We can name our triangle in the both the same way.

Teresa is moving in needs to determine if her friend Sams truck is big enough to fit all of her moving boxes.what would be the best tool that she could use to determine if she has enough room for her boxes?

Answers

Answer:

Step-by-step explanation:

a ruler.

Answer:

Measuring tape

Step-by-step explanation:

What is the area of parallelogram ABCD

Answers

Answer:

20 square units

Step-by-step explanation:

You count how many across the parallelogram is (which is 4) and you count how high it is (which is 5). Then you multiply 5×4* which equals 20 square units.

*The reason you do this is because base×hieght=area

Answer:

20 square units

Step-by-step explanation:

Area of a parallelogram formula = base times height

To find the length of the base we take end points of the base and use distance formula

[tex]distance =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Two points are (1,0) and (5,0)

Distance = [tex]\sqrt{(5-1)^2+(0-0)^2}[/tex]

[tex]=\sqrt{4^2} =4[/tex]

Length of base = 4 units

Now we find out the height between B (1,0) and D (1,5)

Height =[tex]\sqrt{(1-1)^2+(5-0)^2}=\sqrt{5^2}= 5[/tex]

Height = 5

Area of the parallelogram = base times height

= [tex]4 \cdot 5= 20[/tex]

So area = 20 square units

find the length of the missing side. if necessary, round to the nearest tenth.
A. 30
B. 15
C. 21.3
D. 7.7

Answers

Answer:

7.7

Step-by-step explanation:

16^2=14^2+b^2

b^2=60

b=7.7

What’s the mean in 43,69,48,37,85,57,95,102

Answers

Answer:

67

Step-by-step explanation:

Total

= 43 + 69 + 48 + 37 + 85 + 57 + 95 + 102

= 536

Mean

= 536 ÷ 8

= 67

Final answer:

The mean of the given set of numbers is 67.

Explanation:

The mean, also known as the average, is calculated by adding up all the numbers in a set and then dividing the sum by the total number of values in the set.

To find the mean of the set of numbers 43, 69, 48, 37, 85, 57, 95, and 102, you need to add all the numbers together and then divide the sum by the total number of values, which is 8.

43 + 69 + 48 + 37 + 85 + 57 + 95 + 102 = 536

536 ÷ 8 = 67

Therefore, the mean of the given set of numbers is 67.

Learn more about Mean here:

https://brainly.com/question/31101410

#SPJ2

If 343x=49^4-x What is the value of x ?

Answers

Answer:

If It was a Fraction it'd be 8/5

Step-by-step explanation:

The US Senate in Washington DC has 100 elected members last year 30 senators ran for re-election What decimal is equivalent to 30/100

Answers

Answer:

0.3

Step-by-step explanation:

30/10=3

100/10=10

That makes 3/10= 0.3

Answer:0.30

Step-by-step explanation:30 divided by 100 is 0.30

A train traveled 63.75 miles at a rate of 85 miles per hour. Which equation can be used to find h, the number of hours it took the train to travel this distance?

Answers

Answer:

0.75 hr

Step-by-step explanation:

Recall that distance = rate times time.

Thus, time = distance / rate.

Here, time = 63.75 miles / 85 mph  =  0.75 hr

Next time, please share the possible answer choices.  Thank you.

In February, Alex has 1,518 visitors to his websit. In March, he had 1380 visitors to his website. What is the percent decreased of the number of visitors to Alec’s website from February to March ? If necessary, round to nearest tenth of a percent ???

Answers

Answer:

The percent decreased of the number of visitors to Alec’s website

  from February to March is 9.1%

Step-by-step explanation:

* Lets talk about the percentage of increase and decrease

- Percent of Increase (Decrease) =

 (amount of increase or decrease ÷ original amount) × 100%

- Increase {New amount > Original amount}    

- Decrease {Original amount > New amount}

* Now lets solve the problem

- The number of visitors in February is 1518

- The number of visitors in March is 1380

- The number in March < the number in February

∴ The decreasing amount = 1518 - 1380 = 138 visitors

∵ The original number = 1518

∴ The percent decreased = (138 ÷ 1518) × 100% = 9.1%

* The percent decreased of the number of visitors to Alec’s website

  from February to March is 9.1%

Find the slope of the line (in the image I provided).


A) Slope = [tex]\frac{1}{6}[/tex]

B) Slope = 6

C) Slope = -[tex]\frac{1}{6}[/tex]

D) Slope = -6

Answers

Answer:

(D)

Step-by-step explanation:

Slope : ( y2 - y1 )/( x2 - x1)

slope : ( -2 - 4 )/( - 3 + 4)

slope: ( -6 )/( 1 )

slope : -6

Please help me thank you

Answers

Answer:

a) is skewed right since there is more data on the right.

b)5 if there is 3 6's and 3 5's

c) if there are 13 digits in total it is 4.9

Step-by-step explanation:

Are 3x and 3y like terms

Answers

Answer: No

Step-by-step explanation:

Like terms are when the variables of two numbers are the same so they would not be like terms.

Example:

5x+7y Are not like terms because they have different variables

but...

5x+7x Are like terms because they have the same variable(x).

No it’s is not because the variables of both the numbers has to be the same.

The function g(x) = 8(4x) is reflected across the x-axis to create f(x). What is the equation for f(x)? f(x) =_____ (4)x

Answers

Answer:

f(x) = -8(4)x

Step-by-step explanation:

The reflection of the point (x,y) across  the x-axis is the point (x,-y).

Having said this, to reflect the function y=g(x) = 8(4x) over the x-axis, we just need to evaluate the equation in the point: (x,-y).

y = 8(4x) ⇒ -y = 8(4x) ⇒ y = -8(4x)

Then f(x) = -8(4x)

Attached you will find the graph of g(x) (blue) and f(x) (red),

Answer:

[tex]f (x) = -8(4x)[/tex]

Step-by-step explanation:

The transformation that reflects the function [tex]g(x)[/tex] on the axis is:

[tex]y = -g (x)[/tex].

Therefore if we have the function

[tex]g (x) = 8 (4x)[/tex] and we call [tex]f (x)[/tex] to the transformation that relieves g (x) on the x axis then:

[tex]f (x) = -g (x)\\\\f (x) = -8(4x)[/tex]

Finally the equation for f(x) es:  [tex]f (x) = -8(4x)[/tex]

Please help..thank you

Answers

Answer:

D

Step-by-step explanation:

To shift down:

F(x)-b

To shift up:

F(x)+b

To shift right:

F(x-b)

To shift left:

F(x+b)

ANSWER

D. The graph of G(x) is the graph of F(x) shifted 7 units down.

EXPLANATION

The given assumption is that:

G(x)= F(x)-7

This implies that, our parent function is F(X).

Since 7 is subtracted from F(x) to obtain the graph of G(x), it means that shifting the graph of F(x) down by 7 units gives us the graph of G(x).

D. The graph of G(x) is the graph of F(x) shifted 7 units down.

Which United States time zone has the earliest time? Eastern Central Mountain Pacific Alaska Aleutian/Hawaii

Answers

Answer: Alaska

Step-by-step explanation: Alaska has the Earliest United States Time Zone as from Earliest to latest Alaska is 2 PM. Pacific is 3 PM. Mountain is 4 PM. Central is 5 PM. Eastern is 6 PM. Therefore Aleutian/Hawaii is 7 PM. From West, headed East, Each time Zone bumps up 1 hour.

An entertainment website polled visitors who had read a specific book and also watched the movie based on the book to determine if they preferred the book or the movie adaptation. The two-way frequency table shows the results of the poll.

Answers

Answer:

B

Step-by-step explanation:

I. Number of men who liked both equally = 18

Number of men who preferred the movie = 35

18 < 35, so this option is false.

II. Number of men preferred the book  = 56

Number of women preferred the book = 28

56 = 2 · 28, so this option is true.

III. Number of women preferred the book = 28

Number of women preferred the movie = 35

28 < 35, so this option is false.

IV. Number of men who preferred the movie = 35

Number of women who preferred the movie = 35

35 = 35, so this option is true.

True options II and IV.

The bear lake is 24 miles long. Suppose John starts cycling art one end at 20 m.p.h. and Ramona starts at the other end at 15 m.p.h. how long would it take them to meet?

Answers

Final answer:

John and Ramona are closing in on each other on a collision course with a combined speed of 35 mph over a distance of 24 miles. After doing the calculation, we find that it will take them approximately 41.14 minutes to meet.

Explanation:

To find out how long it will take John and Ramona to meet, we can assume they are moving towards each other on a collision course. We do this by adding their speeds together since they are moving in opposite directions. John cycles at a speed of 20 mph and Ramona cycles at 15 mph, so the combined speed at which they are closing in on each other is 20 mph + 15 mph = 35 mph.

The distance between them is 24 miles. To calculate the time it takes for them to meet, we divide the total distance by their combined speed:

Time = Distance / Speed

Time = 24 miles / 35 mph

Time = 0.6857 hours

Since time is often represented in minutes, we multiply the decimal by 60:

0.6857 hours * 60 minutes/hour = 41.14 minutes

Therefore, it would take approximately 41.14 minutes for John and Ramona to meet.

How do I find the original price of an item from the tax rate and tax price?

Answers

Answer:

[tex]\boxed{\text{\$11 500}}[/tex]

Step-by-step explanation:

$1437.50 = 12.5 % of price

[tex]\text{Price} = \text{100 \%} \times \dfrac{\text{\$1437.50}}{\text{12.5 \%}} = \text \$11 500}[/tex]

The price of the motorcycle before tax was [tex]\boxed{\textbf{\$11 500}}[/tex]

Other Questions
How did the Columbian Exchange impact the movement of people around the world? Apply the distributive property to create an equivalent expression.4(x2+y)= what statement about a cover letter is true? 6u+4-3u+11 simplify PLZ How does the narration affect Oskars credibility in this excerpt? His Greek and Roman references emphasize his intelligence. His explanation of a pendulum emphasizes his maturity. His fond recollections emphasize his genuine sincerity. His description of his dad emphasizes his lack of stability. How a person can have power and prestige without a large income? can someone help me What is made by placing gasoline in a glass jar and using an ignition source?A. Russian bombB. Molotov cocktailC. Brazilian explosionD. Simpson special Tony is standing at sea level. From his location, the angle of elevation of the top of Blue Mountain is 23. Staying at sea level, he walks 210 yards toward the mountain. The angle of elevation of the top is now 28. Find the height of Blue Mountain. Round intermediate results to 3 decimal places and the final answer to 1 decimal place.The height of Blue Mountain is _____ yards. Rewrite the expression with rational exponents as a radical expression.7 times x to the two thirds power 25 POINTS!!! Match the vocabulary words to their dictionary definitions. How does nuclear fusion differ fundamentally from nuclear fission? Nuclear fusion combines atomic nuclei. Nuclear fusion doesnt produce energy. Nuclear fusion is a cold process. Nuclear fusion splits atomic nuclei. Which American sport is not also a popular sport in Columbia? Football Soccer Basketball Baseball Do you know what this means? And how do I solve it? Calculate the mole fraction of each component in a solution with 6.87 g of sodium chloride (NaCl) dissolved in 65.2 g of water. Work must be shown in order to earn credit. The humidity in a local area is high and the temperature drops. These conditions might cause A. dry weather. B. ocean currents. C. rainy weather. D. colder winters. Given the density of Au is 19.3 g/cm3. Determine the mass of gold in an ingot with the dimension of 10.0 cm x 4.00cm x 3.00cm. Which presidential campaign slogan best demonstrates an unwarranted extrapolation? Vote Yourself a Farm and Horses Abraham Lincoln, 1860 Grant Us Another Term Ulysses S. Grant, 1872 He Kept Us Out of War Woodrow Wilson, 1916 Im Just Wild About Harry Harry S. Truman, 1948 The pizza shop offers a 15 percent discount for veterans and senior citizens. An employee uses the calculations shown to figure out how to charge a senior citizen for a $12 pizza. What is the employees error?(100% Discount %)(Original Amount) = Discounted Amount(100% 85%)($12) = Discounted Amount(15%)($12) = Discounted Amount(0.15)($12) = $1.80The discounted price of pizza is $1.80.A) The employee used the wrong formula.B) The employee subtracted the wrong percents.C) The employee used the wrong equivalent decimal for 15 percent.D) The employee multiplied incorrectly.PLEASE HELP ASAP!!! Read "Spanish Dancer" and answer the question.Spanish Dancerby Rainer Maria Rilke As on all its sides a kitchen-match darts white flickering tongues before it bursts into flame: with the audience around her, quickened, hot, her dance begins to flicker in the dark room. 5 And all at once it is completely fire. One upward glance and she ignites her hair and, whirling faster and faster, fans her dress into passionate flames, till it becomes a furnace from which, like startled rattlesnakes, the long10 naked arms uncoil, aroused and clicking. And then: as if the fire were too tight around her body, she takes and flings it out haughtily, with an imperious gesture, and watches: it lies raging on the floor, 15 still blazing up, and the flames refuse to die - Till, moving with total confidence and a sweet exultant smile, she looks up finally and stamps it out with powerful small feet.What is the meaning of imperious as it is used in Line 13?A.) commandingB.) assaultiveC.) compulsoryD.) insulting