The diameter of a circular mirror is 20 inches what is the area of the mirror? use 3.14?​

Answers

Answer 1

Answer:

20/2 = 10

10 squared is 100 (10 x 10)

100 x (pi) = 314.159265359

But if we were to use 3.14 it would be 314


Related Questions

Find the exact value of sin (13pi/8)

Answers

Answer:

degree 0.089

radian -0.92

Step-by-step explanation:

Please help what’s this answer ?! And the last answer is 2/5

Answers

Answer:

F  0.45

Step-by-step explanation:

Total number of students: 15 + 8 + 27 + 10 = 60

Number of students who took theater: 27

part = 27/60 = 0.45 = 45%

Answer: F   0.45

Answer:

I'm answering for your last question....it wouldn't let me post under the one that I had to

anyways your answer is d


One dice and one coin are tossed. What is probability that you will see HEAD on coin and dice will show a number
more than 4. Answer should be in reduced fraction format.

Answers

Answer:

1/6

Step-by-step explanation:

1/2 multiplied by 1/3

jiao is a chinese student visiting family in the united states. she spent $79 on dinner for her family one evening. if the exchange rate that day is UDS to CNY = 6.51, approximately how much money did she spend in CNY?
A 12
B 125
C 495
D 857

Answers

Answer:

That day Jiao spent $CNY 514.29.

Step-by-step explanation:

Given that Jiao is a Chinese student visiting family in the United States, and she spent $ 79 on dinner for her family one evening, if the exchange rate that day is UDS to CNY = 6.51, to determine approximately how much money did she spend in CNY the following calculation must be performed:

79 x 6.51 = X

514.29 = X

Therefore, that day Jiao spent $ CNY 514.29.

Nth term for quaratic sequence -7,-6,-3,2,9,18,29

Answers

Answer:

-7, -6, -3, 2, 9, 18, 29, 42, 57

Rule: + 1, + 3, + 5, + 7, + 9, + 11, + 13, + 15, + 17......................

giving out brainliest answer please help me out asap !! it’s due today

Answers

Answer:

180=3x+7x+10

simplify

180=10x+10

subtract 10 from both sides

170=10x

divide both sides by 10

x=17

4+4=? Trick Question :3

Answers

Answer:

8

Step-by-step explanation:

Lol hope this helps!

hmmmmm....... 10? :)

5.
13 points
A piece of jewelry that regularly costs $120 is on sale for $96. What is the percent of decrease in the
price of the jewelry piece?
A 15%
B 20%
C 18%
D 30%

Answers

Answer:

The answer is B

Step-by-step explanation:

The answer would be B....

Which expression is equivalent to (see the picture)

A. 20x-21y +14
B. 20x + 11y + 14
C. 20x - 11y + 6
D. 20x + 21y +6

Answers

Answer:

A

Step-by-step explanation:

[tex]\frac{1}{5} (150x-80y+50-50x-25y+20)[/tex]

step 1 apply the 1/5 to everything that inside of the parenthesis

[tex]\frac{150x}{5} =30x\\\\\frac{-80y}{5} =-16y\\\\\frac{50}{5} =10\\\\\frac{-50x}{5} =-10x\\\\\frac{-25y}{5} =-5y\\\\\frac{20}{5} =4[/tex]

we now have 30x - 16y + 10 - 10x - 5y + 4

Step 2 combine like terms

30x - 10x = 20x

-16y - 5y = - 21y

10 + 4 = 14

we're left with 20x - 21y + 14 Which corresponds with answer choice A

Answer:

20x-21y+14

Step-by-step explanation:

1/5(150x-80y+50-50x-25y+20) is equal to 1/5(150x) + 1/5(-80y) + 1/5(50) + 1/5 (-50x) + 1/5(-25y) + 1/5(20)

So if we simplify, we would have 30x + (-16y) + 10 + (-10x) + (-5y) + 4, or 30x -16y + 10 -10x -5y + 4

When organizing the values by variable, the equation would look like this -

30x - 10x -16y -5y + 10 + 4

Combining like terms will result in 20x -21y + 14.

Hope this helps!

1. What is the absolute value of 8?

Answers

Answer:

8

Step-by-step explanation:

Answer: 8

Step-by-step explanation: For absolute values, all values are positive. It is basically the positive inverse of the number.

Write a division problem that has a quotient of 9/10 .

At least one of the numbers you give must be a proper fraction. The other can be a proper fraction, whole number, or improper fraction. Neither the dividend nor the divisor can be 9/10 .

Answers

Answer:

Ill answer this if you answer mine , |a+5|, if a is <-5

Step-by-step explanation:

Please help urgent full explanation or short either one

Answers

Answer:

5 X 6= 30 divided by 3 = 10 -2 = 8

Step-by-step explanation:

the symbols you will insert from left to right will be X, ÷,- for the equation to make sense

Answer:

[tex]5 \times 6 \div 3 - 2[/tex]

Step-by-step explanation:

PEMDAS

first multiply 5 by 6 = 30

then divide by 3 = 10

subtract 2 = 8

Find the solution of the following equation whose argument is strictly between 90° and 180°.

Answers

Answer:

180degreesStep-by-step explanation:

Given the complex value

z² = -81i

z = (-81i)^1/2

Get the argument of -81i

theta = arctan(y/x)

theta = arctan(-81/0)

theta = -90degrees

theta = -π/2

Since tan is negative in the secind quadrant

theta =  π - π/2

theta = π/2

According to demoivres theorem

theta = 1/2 * π/2

theta = π

theta = 180degrees

solve the following equation 1÷x=2​

Answers

Answer:

Your answer would be x = 1/2

Step-by-step explanation:

1/x = 2

You would divide x on both sides...then they would cancel each other out.

But now you're left with...

1 = x•2

So, re-order the terms so constants are on the left

1 = 2x

Divide 2 on both sides...

Now you're left with

1/2=x or more practically it would be x = 1/2

Hope this helps!

what happen when their is decrease in equilibrium price and increase in equilibrium quantity​

Answers

Answer: An increase in demand, all other things unchanged, will cause the equilibrium price to rise; quantity supplied will increase. A decrease in demand will cause the equilibrium price to fall; quantity supplied will decrease. ... A decrease in supply will cause the equilibrium price to rise; quantity demanded will decrease.

Can someone help me with question 1 and 2 please​

Answers

question 1)
there’s 180 degrees in a triangle
70 + 70 = 140
180 - 140= 40
A= 40
question 2)
there’s only one line of symmetry, down the middle

What is the volume of the triangular prism 3.2 CM 5.4 CM 6 CM

Answers

Answer:

You must tell me which is the base , width , and height please and thank you

Step-by-step explanation:

Include a picture if you have one too

Joseph is going on a trip and he needs to rent a car. He looks online and finds two companies that offer different pricing options for car rentals. Company A charges $0.25 per mile plus a $50 rental fee. Company B charges $0.45 per mile plus a $20 rental fee.

What is the maximum number of miles that Joseph can drive in order for Company B to be a better buy? The company charges only for whole number mileage (not fractional increments of miles driven).

A) 125 miles
B) 149 miles
C) 150 miles
D) 151 miles

Answers

Answer:

E.The price for travelling 150 miles is same for both company.

Step-by-step explanation:

We are given that Joseph is going on a trip and he needs to rent a car.

Company A

Charge $0.25  per mile plus  $50 rental fee.

Company B  charges 40.45 per mile plus $20 rental fee.

A.Total distance=150 miles

Company A

Charges for 150 miles=$37.5

Total charges=37.5+50=$87.5

Company B

Charges for 150 miles==$67.5

Total charge=20+67.5=$87.5

The price for travelling 150 miles is same for both company.

But if distance greater than 150 miles such 155  miles

Company A

Total charge=$88.75

Company B

Total charges=$89.75

Company A is better deal if Joseph more than 150 miles.

If distance 145 miles

Price form company A=$86.25

Price form company B=$85.25

Company B is better deal if Joseph travel less than 150 miles.

Hence, option E is true.

I hope this helps you <3333

value is 12, mean is 20, and standard deviation is 2.8

Answers

Lets find the upperlimit and lower limit of data .

Lower limit=Mean-SD=20-2.8=17.2Upper limit=Mean+SD=20+2.8=22.8

Hence the value 12 isn't included in data

Step-by-step explanation:

Lower limit= Mean-Standard Deviation=17.2

Upper limit=Mean+ Standard Deviation= 22.8

Hence, 12 isn't included in data

The gas consumption of a vehicle varles directly as the distance traveled. If a
certain vehicle uses 15 gallons to travel 263 mlies, how many miles would it travel
on 9 gallions of gas?

Answers

Answer:

It would travel 157,8 miles with 9 gallons of gas.

Step-by-step explanation:

15 gallons / 263 miles

= 3 gallons / 52,6 miles

= 9 gallons / 157,8 miles.

2x(27x+5) Evaluate this please

Answers

Answer:

54x^2 + 10x

Step-by-step explanation:

A picture frame measures 5 inches wide and 7 inches long. What is the perimeter of the frame?

Answers

The perimeter is 24.
Remember finding perimeter is always adding, so add 5 two times for the sides do the shape, do the same for 7, then you get your answer. Hope this helps!
the answer would be 24, 5+5+7+7=24

two girls want to share 1 1/2 granola bars so that each one gets the same amount. how much will each girl get.

Answers

Answer:

3/4

Step-by-step explanation:

Each one of them will get 3/4 or 0.75

Answer:

3/4 or 0.75

Step-by-step explanation:

1 1/2 divided by 2 is 3/4 or 0.75

Check:

3/4+3/4=6/4=1 1/2

Hope this helps! Have a nice day :)

Determine whether the underlined numerical value is a parameter or a statistic. Explain your reasoning. for a certain movie 64.3% of the 112 members of the audience were females

Answers

Answer:

The given numerical value  is a Parameter.

Step-by-step explanation:

Given - For a certain movie 64.3% of the 112 members of the audience were females.

To find - Determine whether the underlined numerical value is a parameter or a statistic.

Proof -

Given that, 64.3% of the 112 members of the audience were females.

Now,

64.3% of  112 = [tex]\frac{64.3}{100}*112[/tex] = 72.016

Since it is not a perfect number

And Human can not be in fraction

So,

The given numerical value  is a Parameter.

write the equation of lines shown on the graph.

Answers

Answer: um look it up or cause i dont know how to get out of answering this cause i clicked answer so this is here my bad

Step-by-step explanation:

Modal 9 10 11 14 19 22 27 29 21 18 11 6

Answers

Answer:

modal is 11. it's the correct answer

What is the volume of this sphere?

Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

5mm

Answers

Answer:

1. is 5mm like the diameter or the radius and 2. the formula is V=4 /3πr^3

Step-by-Step Explanation:

to spend to much traveling and country the day she arrived the exchange rate was 1.4 country a dollars Per country B dollars if she exchange 500 country B dollars when she arrived how many country eight dollars she receive

Answers

Answer:

She receives 700 country A dollars.

Step-by-step explanation:

This question is solved by proportions, using a rule of three.

1.4 country a dollars Per country B dollar

She exchanges 500 country B dollars, so:

1.4 country A dollars - 1 country B dollar

x country A dollars - 500 country B dollars

Applying cross multiplication:

[tex]x = 1.4*500 = 700[/tex]

She receives 700 country A dollars.

Construct a histogram for the following data set: 11, 17, 13, 2, 22, 18, 16, 14, 16, 21, 17, 9, 9, 7, 3

Answers

Its really simple the next number should be 1

please help me im really struggling in math and the year is almost over im trying to get as much done as possible

Answers

Answer:

It would be 11, 23, and 33

Step-by-step explanation:

because, 2 side of the triangle should add up to greater than your other side of the triangle. And so on for each of the sides.  

11,23,33!!!!!!!!!!!!!!!!!!! hope you pass
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