The circumference of the hub cap of a tire is 80.07 centimeters. find the area of this hub cap. use
3.14 for it. if the circumference of the hub cap were smaller, explain how this
would change the area of the hub cap.
the area of this hub cap is about how many
square centimeters?

Answers

Answer 1

The area of this hub cap is about  510.44625 cm².

What is Area of Circle?

The area of circle is pi times the square of the radius.

Area of circle =π r²

Circumference (C) = 2π r

80.07 = 2 (3.14) r

76.87/ (2x 3.14) =r

r = 12.75 cm

now, Area be

=π r²

= 3.14*12.5*12.75

=510.44625 cm²

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Related Questions

Mike purchased a vehicle for Rs 59425 and spent Rs 8652 on repairs. How much did the vehicle cost him?

Answers

Answer:

68077

Step-by-step explanation:

he had spent 68077 because by 59425+8652 makes 68077

Factor completely AND solve for the solutions of the quadratic.

Answers

Answer: x = -2, -3/2
(WORK SHOWN BELOW)

You toss a coin and roll a number cube. The table shows the sample space,
where H means heads, T means tails, and the numbers represent the number
cube roll?

What is the probability of tossing heads and rolling a number less than 3?

A.1/4

B.1/3

C.1/6

D.1/2

Please help me on this and answer quickly if you get it correct and I’ll give brainlist if you don’t I won’t give brainlist but hurry please!!

Answers

Using it's concept, it is found that the probability of tossing heads and rolling a number less than 3 is given by:

C. 1/6

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem, there were 12 trials. Of those, 2 are H1 and H2, which are heads and a number less than 3, hence the probability is given by:

p = 2/12 = 1/6.

Which means that option C is correct.

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A square notepad has sides that are 10 centimeters long. What is the notepad's area?

Answers

Answer:

100cm²

Step-by-step explanation:

The notepad is square.

The area of a square = length X width.

All the sides of a square are the same length.

Therefore, the area of the notepad = 10 X 10 which equals 100.

Don't forget the units!

The units for area is cm².

The units for volume is cm³.

This is area so your answer is 100cm².

Hope this helped, have a nice day!

Factor: 5x2 – 15x – 20.

(a) 5(x-4)(x+1),

(b) -2(x-4)(x+5),

(c) -5(x+4)(x-1),

(d) 5(x+4)(x+1).

Answers

Answer:

[tex]a)~5(x-4)(x+1)[/tex]

Step-by-step explanation:

[tex]~~~5x^2 -15x -20\\\\=5(x^2 -3x -4)\\\\=5(x^2 -4x +x -4)\\\\=5\textbf{[}x(x-4) +(x-4)\textbf{]}\\\\=5(x-4)(x+1)[/tex]

The graphs of f(x) = -2x and g(x)=()* are shown.
What are the solutions to the equation -2x = ()*?
Select each correct answer.
0-2
0 -1
02
04
-10-8-6-4
10
8
6-
72
-4
6
in
8
10+
2 4 6 8 10

Answers

The solutions to the equation -2x = 2^x are (1,2) and (2,4)

How to determine the solutions?

The attached graph represents the missing part of the question

The equations are given as:

f(x) = -2x

g(x) = 2^x

The solution to -2x = 2^x is the points where the graphs of f(x) and g(x) intersect

From the attached graph, the points of intersection are:

(1,2) and (2,4)

Hence, the solutions to the equation -2x = 2^x are (1,2) and (2,4)

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The charge for renting a hedge trimmer is $10 plus $5 per day the total for renting a trimmer was $85. Which equation can you use to find the number of days the trimmer was rented? Please help !!!!

Answers

Answer:

15days.

Step-by-step explanation:

total amount=$85

renting amount=$10

amount per day=$5

to find the number of days the trimmer was rented it will be;

total amount-renting amount ÷$5

$85-$10÷$5

$75÷$5

=15days

A physical therapist claims that 75% of people lose their balance if they close their eyes while standing on one foot. A gymnast feels that the rate is less than 75%. To test this, she randomly selects 100 people and finds that 80 of them lose their balance while standing on one foot. To determine if these data provide convincing evidence that the proportion of people who lose their balance while standing on one foot and closing their eyes is less than 75%, 150 trials of a simulation are conducted. The gymnast is testing the hypotheses: H0: p = 75% and Ha: p < 75%, where p = the true proportion of people who will lose their balance while standing on one foot and closing their eyes. Based on the results of the simulation, what is the estimate of the P-value of the test? A dotplot. A number line labeled simulated sample percentage of people who lose balance goes from 64 to 88 percent. 64, 3; 66, 3; 67, 4; 68, 8; 69, 5; 70, 7; 71, 8; 72, 11; 73, 15; 74, 12; 75, 11; 76, 8; 77, 18; 78, 10; 79, 10; 80, 5; 81, 4; 82, 2; 83, 2; 84, 1; 85, 2; 87, 1. 0.1133 0.17 0.887 0.92

Answers

Answer:

75

Step-by-step explanation:

becAUSE IF YOU TEST IT THATS UR ANSWER

1. if axb = 0 then either a or b or both must equal....

Answers

Answer: one or both must equal 0

What is 6x-6x56 =?
Show all work.

Answers

Answer:

6x-6x56 =-2016

Step-by-step explanation:

You have to subtract, then multiply by 56 to get -2016, as it shows a negative.

Gavin has nickels, dimes, and quarters in the ratio of 1:3:6.If 57of Gavin’s coins are dimes , how many nickels and quarters does he have?

Answers

Answer:

19 nickels, 57 dimes, and 114 quarters

Step-by-step explanation:

57/3 = 19

1 × 19 = 19

3 × 19 = 57

6 × 19 = 114

solve these algebraic fractions please with step by step explanation would be great ​

Answers

Answer:

first ans =x-7

second ans= x+y/x-y

Step-by-step explanation:

I think you would get it and it doesn't need explanation.

A car travelled a distance of 50km in an hour.what distance did it travel in 30min at the same speed? ​

Answers

Answer:

The car would have traveled 25 km.

Step-by-step explanation:

Set up the Proportion [tex]\frac{50}{60} = \frac{x}{30}[/tex]. Solving that proportion gets you an answer of 25, getting you the answer 25 km in 30 minutes. I hope this helps! :)

Convert 5.6 times 10 to power of 4 to ordinary form

Answers

5.6 x 10^4 = 28x 1000
———-
5

The points E(- 4, 6), F(- 6, - 2), G(2, - 4) , and H(4, 4) form quadrilateral EFGH. Plot the points then click the "Graph Quadrilateral " button.

Answers

The slope of EF, FG, GH, and HE is 4, -1/4, 4, and -1/4 respectively. And the length of sides EF, FG, GH, and HE will be √68, √68, √68, and √68 units respectively.

What is coordinate geometry?

Coordinate geometry is the study of geometry using the points in space. Using this, it is possible to find the distance between the points, the dividing line is m:n ratio, finding the mid-point of the line, etc.

The points E(-4, 6), F(-6, -2), G(2, -4) , and H(4, 4) form quadrilateral EFGH.

Then the slopes are calculated below.

Slope of EF = (6 + 2)/(-4 + 6)

Slope of EF = 8/2

Slope of EF = 4

Slope of FG = (-4 + 2)/(2 + 6)

Slope of FG = -2/8

Slope of FG = -1/4

Slope of GH = (4 + 4)/(4 - 2)

Slope of GH = 8/2

Slope of GH = 4

Slope of HE = (6 - 4)/(-4 - 4)

Slope of HE = -2/8

Slope of HE = -1/4

Then the distance between the point will be

EF² = (-6 + 4)² + (-2 - 6)²

EF² = (-2)² + (-8)²

EF² = 4 + 64

EF = √68

FG² = (2 + 6)² + (-4 + 2)²

FG² = (8)² + (-2)²

FG² = 64 + 4

FG = √68

GH² = (4 - 2)² + (4 + 4)²

GH² = (2)² + (8)²

GH² = 4 + 64

GH = √68

FG² = (4 + 4)² + (4 - 6)²

FG² = (8)² + (-2)²

FG² = 64 + 4

FG = √68

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Find each square (x+4)^2

Answers

Answer:

[tex]x^{2} +8x+16[/tex]

Step-by-step explanation:

There are 2 ways to find the square of a binomial. You can use FOIL or use a formula. Just remember that the square of a binomial will always be a trinomial.

FOIL

Since we are squaring a binomial we can rewrite the expression as (x+4) * (x+4). FOIL stands for First, Outside, Inside, Last. This explains how to multiply out 2 binomials. This method will give you 4 different terms that can then be combined to find the answer.

First - multiply the first terms of each binomial

x * x = [tex]x^{2}[/tex]

Outside - multiply the terms on the outside of both binomials

x * 4 = 4x

Inside - multiply the terms on the inside of both binomials

4 * x = 4x

Last - multiply the last terms of each binomial

4 * 4 = 16

Now we can combine these terms to create the new polynomial [tex]x^{2} +4x+4x+16[/tex]. Then, combine like terms for the final answer: [tex]x^{2} +8x+16[/tex].

Shortcut

Another way to square binomials is to use the formula [tex]a^{2} +2ab+b^{2}[/tex], where a is the first term and b is the second term. So, for this formula, the binomial would look like (a+b).

So, we can apply this formula by plugging in x for a and 4 for b.

[tex]x^2+2*4*x+4^2[/tex]

Then, multiply the middle term

[tex]x^{2} +8x+4^2[/tex]

Finally, square 4

[tex]x^2+8x+16[/tex]

This gives us the same final answer as the method above.

Step-by-step explanation:

(x+4)^2

you can also expand it

(x+4)(x+4)

x^2+4x+4x+16

x^2+8x+16

HELP ME AND ANSWER BOTH PARTS PLEASE!

Answers

1 is d
2 is -15+2x
Glad I could help

can someone help me on this question?​

Answers

Answer:

first line: 0, 4

explanation: middle of -12 and 12 is 0, then 12/3 = 4

second line: -9, 6

explanation: split into 4 sections per each 12 so 12/4 is 3 and the location of the first unknown point is one section away from 12 so we know the distance between there is 3, leaving -12+3 = -9. Then two sections less than 12 is 12-6 = 6

third line: -12, 4

explanation: 24/6 = 4, -24 + 12 = -12 so 4 units each sections 0 + 4 = 4

The value of the expression -a -bl when a = 7
and b = -3

Answers

Answer:

Option 1 -----> -10

Step-by-step explanation:

Substitute a and b into the equation :

-{a-b} =  

-{7-(-3)} =

-{7+3} =

-{10} =

-10 ---> Option 1

Hoep this helped and brainliest please

Can * x ^ 2 + 25 be factored using a difference of two squares?

Answers

No it can't be factored , whenever there is addition between two squares , the expression can't be factored

Fill in the missing number in this sequence:
{ } 45, 15, 5

Answers

Answer:

135

Step-by-step explanation:

every njmber is divided by 3

If 135 is divised by 3 it becomes 45

Hi student, let me help you out! :)

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

We are asked to fill in the missing number in the following sequence:

[tex]\pmb{(~~~),45,15,5}[/tex]

[tex]\triangle~\fbox{\bf{KEY:}}[/tex]

Look at the common ratio.

Since every number here is divided by 3, the common ratio is 3.

To find the missing number, we should multiply 45 times the common ratio, 3:

[tex]\star~\mathrm{\overline{\underline{\overline{\underline{135}}}}}[/tex]

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

Paula walks 1/12 mile in 5/3 minutes. What rate is equivalent to the rate she walked?

Answers

The rate that is equivalent to the rate Paula walked is 1/20 mile/minute OR 0.05 mile/minute

Calculating Rate

From the question, we are to determine the rate which is equivalent to the rate Paula walked

Using the formula,

[tex]Rate = \frac{Distance}{Time}[/tex]

From the given information,

Distance = 1/12 mile

Time = 5/3 minutes

Putting the parameters into the formula, we get

[tex]Rate =\frac{\frac{1}{12} }{\frac{5}{3} }[/tex]

[tex]Rate = \frac{1}{12} \div \frac{5}{3}[/tex]

[tex]Rate = \frac{1}{12} \times \frac{3}{5}[/tex]

[tex]Rate = \frac{3}{60}[/tex]

[tex]Rate = \frac{1}{20}[/tex] mile/minute

Hence, the rate that is equivalent to the rate Paula walked is 1/20 mile/minute OR 0.05 mile/minute

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!!20 POINTS AND BRAINLIEST!!! HELP ASAP!!!

How much ribbon would be needed to go around a package that had a length 2x^2+3x-5/x^2+x-3 centimeters and width x^2-x-5/x^2+x-3 centimeters?

(show work)

Answers

Answer:

23cm

Step-by-step explanation:

If you multiply like terms you will get the answers. Then you add last to get 23cm

The required length ribbon needed to go around the package is 2(3x^2 + 2x -10) / (x^2 + x - 3).

Given that,
Package that had a length of 2x^2+3x-5/x^2+x-3 centimeters and width x^2-x-5/x^2+x-3.

How much ribbon would be needed to go around the package in centimeters is to be determined.

What is the perimeter?

Perimeter is the measure of the figure on its circumference.

What is a rectangle?

The rectangle is a four-sided polygon whose opposites sides are equal and has an angle of 90° between its sides.

Quantity of ribbon = perimeter of the rectangular package
                            = 2 * length + 2* width
                            = 2 * (2x^2+3x-5/x^2+x-3) + 2(x^2-x-5/x^2+x-3)
                            = 2 (3x^2 + 2x -10) / (x^2 + x - 3)

Thus, the required length of  ribbon needed to go around the package is 2(3x^2 + 2x -10) / (x^2 + x - 3).

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please answer the question below, will give brainliest to first answer :)

Answers

Answer:

None of these answers are correct

Step-by-step explanation:

neither of them are rays.

a ray goes from the center to the edge of a circle.

PLSSS HELP IF YOU TURLY KNOW THISS

Answers

Answer:

c. diameter

because when a line intersects the center and even touches the centre is called a diameter

hope it helps.

Answer:

C

Step-by-step explanation:

Diameter


the amount (a) that principal (p) will be worth after t years at interest rate (r) compounded annually is
a = p(1 + r)^t

suppose $6,000 is invested at 5.5% and yields a total of $7,255. how many was it invested

Answers

The number of years the money was invested with annual compounding is 3.45 years.

How many years was it invested?

When an amount earn interest compounded annually, it means that both the amount invested and the interest earned increases in value once a year.

Number of years =  (In FV / PV) / r

Where:

FV = future valuePV = present valuer = interest rate

(In 7255 / 6000) 0.055 = 3.45 years

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Brent sells an avarage of 52 pot holders each week. about how many pot holders does he sell in 58 weeks.

Answers

The amount of pot holders Brent sold for 58 weeks is 3016

How to find the amount of pot holders Brent sold?

He sells 52 pot holders each week.

This means for every week, he sold 52 pot holders. Therefore, the amount of pot holders he sold for 58 weeks can be solved as follows:

1 week = 52 pot holders

58 weeks  = ?

cross multiply

number of pot sold for 58 weeks = 58 × 52

number of pot sold for 58 weeks = 3016

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Drag the tiles to the correct boxes to complete the pairs.
Match the subtraction expressions with their answers.

Answers

From simplification of the given algebra, the correct answers are as shown below.

How to solve algebra problems?

1) (a² - b)/(a³b²)

This reduces to;

(a²/(a³b²)) - b/(a³b²)

⇒ a/(ab²) - 1/(a³b)

2) The algebraic expression is;

(b - a)/a³b³

⇒ b/a³b³ - a/a³b³

⇒ 1/a³b² - 1/a²b³

3) The algebraic expression is;

(2 - ab²)/(a²b³)

⇒ (2/(a²b³)) - (ab²)/(a²b³)

⇒ 2/(a²b³)) - 1/(ab)

4) The algebraic expression is;

(2 - ab²)/(a²b³)

⇒ 2/(a²b³) - 1/ab

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Keith is working two jobs this summer as a lifeguard and a tutor. he earns $16 an hour as a lifeguard and $18 an hour as a tutor. he wants to earn at least $250 to put towards his car. what is one possible combination of hours he can work at each job to earn at least $250?

Answers

Answer:

He could work 10 hours as a lifeguard, and 5 hours as a tutor

Step-by-step explanation:

If he makes $16 an hour as a lifeguard

            and $18 an hour as a tutor,

He could work 10 times $16, to make $160 for 10 hours.

Now we subtract this from $250, this makes $90.

We know need to find out how many times 18 goes into 90, 5 times.

So we know that he could work 10 hours as a lifeguard and 5 hours as a tutor.

I hope this is right.

I hope this helps too, have a nice day!

Mr. Fishie bought a tank for $15 and 10 fish which cost $f each. If he gave the cashier two 20-dollar bills, what was his change in terms of f?

Answers

Answer:

$25 - $10f

Step-by-step explanation:

Fishie's name is fishy.  

We know Mr. Fishie spent $15 on a tank.  His 10 fish cost 10*$f.  His total is:

Total =15 + 10*f

His change after 2 $20 would be:

$40 - ($15 - $10f), or

$25 - $10f

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b) Describe your duties as a plant scientist who is involved in creating a new strain of a plant using genetic engineering. Mention at least 3 specific duties that you must do while working with Professor Ingo Potrykus on this particular project Scientists observe that iron compounds are able to bind to nutrients in waterways experiencing eutrophication. Which change will most likely occur if iron compounds are added to a lake with an overabundance of nutrients? (1 point)1. Fewer microorganisms will grow on the surface of the lake2. More areas of hypoxia will occur in the lake.3. More contaminated water will reach the lake.4. Less sunlight will reach aquatic plants in the lake.Which phrase best describes fracking?(1 point)1. removing the top layer of an ore-bearing mountain to access oil and gas resources2. using water and chemicals at high pressure to open up fissures to access oil and gas resources3. using water and chemicals at high pressure to open up fissures to access mineral resources4. removing the top layer of an ore-bearing mountain to access mineral resourcesSOMEONE PLEASE HELP QUICK!!! What are the processes involved in cellular division? 6) which of these most closely identifies the contrast between category 3 and category 4? a) category 3 deals with the united keetoowah band, and category 4 summarizes the information from the other three categories. b) category 3 deals with the united keetoowah band and category 4 discusses all persons not included in categories 1 through 3. c) category 3 deals with all persons not included in other categories, and category 4 is specifically about the united keetoowah band. d) only category 4 deals with genealogical research and the ukb council, which is the supreme governing body of the old cherokee nation. why cant you keep your tongue still? What does a negative AH for a molecule mean? A boat travelled 60km downstream in 4 hours and the return trip in 5 hours. What is thespeed of the boat in still water in km/h? Write your answer to the nearest tenth. 6. Use the following matrices to answer the questions. (2 points each)5 -82 -6-8-2 3AB =[418] c- [5 5] -C=9 10391a. Is the operation E + C possible? Circle YES or NOIf yes, state the dimensions of the answer:b. Is the operation B + C possible? Circle YES or NOIf yes, state the dimensions of the answer:c. Is the operation E. D possible? Circle YES or NOIf yes, state the dimensions of the answer:d. Is the operation D E possible? Circle YES or NOIf yes, state the dimensions of the answer:e. Is the operation A D possible? Circle YES or NOIf yes, state the dimensions of the answer:1-1 10E117 -1 0 Noah borrowed $5000 from the credit union for 180 days. The interest rate is 11.4% per year. How much must Noah pay to the credit union after 180 days? solve pls brainliest In the group of three sentences, choose one sentence which tells a main idea and two sentences which state supporting details for the main idea. Type MI beside the main idea sentence and D beside each detail sentence.1. Raising sheep is a profitable business.2. A farmer may raise sheep along with other livestock.3. Some people raise Easter lambs. ladybug beetles chase, capture, and eat smaller insects called aphids. which best describes this relationship? Christian is driving on a long road trip. He currently has 12 gallons of gas in his car.Each hour that he drives, his car uses up 1.25 gallons of gas. How much gas would bein the tank after driving for 6 hours? How much gas would bbe left after t hours? Can someone please help me with these questions does no one want 50 pts I don't understand I ask a question but no body answers. and its also multiple choice so its not even hard The Western Siberian Plain is __________ in some places because it has poor natural draining systems. When a racemic mixture is reacted with a single enantiomer of another compound, then a pair of _________ is formed. Write an equation in slope-intercept form of the line that contains the point (-2, 2) and has the slope = -5. Which of these is true about pre-Columbian North and South America?OA. They created a language understood by all groups.OB. They were united by a single government.OC. They had complex societies.OD. They were dependent on overseas trade. Please help its very desperate and if i could get someone to help me on this whole assignment it would be awesomeWrite -0.65 as a fraction or mixed number in simplest form. (you may use an improper or a mixed number as your final answer.) also if someone could help me on this whole assignment my discord is goths#0001