Mathematics Middle School

HELP MEEE PLSSS <333 I'LL GIVE YOU BRAINLIEST

Riggoletto’s Portraits specializes in making circular portraits of people. A large portrait is 78 in. in diameter. A medium portrait is 26 in. in diameter. Estimate the difference between the areas of the two sizes of portraits. Use 3.14 for pi Round your answer to the nearest whole number.

Answers

Answer 1

Answer:

\(4245.28\)

Step-by-step explanation:

The formula for the are of a circle is \(A=\) πr²

however we will substitute 3.14 for π

\(d=2r\), diameter is equal to twice the radius of a circle, dividing the radius by 2 will give you the radius, \(\frac{d}{2}=r\)

\(\frac{78}{2}=39\), \(r=39\)

\(\frac{26}{2} =13\), \(r=13\)

\(A=(3.14)(39)^{2}\), \(A=4775.94\)

\(A=(3.14)(13)^{2}\), \(A=530.66\)

We can calculate the difference of the areas through subtraction

\(4775.94-530.66=4245.28\)

plz mark me brainliest. :)

Related Questions

save me from this scary question

save me from this scary question

Answers

Answer:

kk ill save ya from the scary question

the answer is B

Because the original picture is 16 by 20...but the scaled down picture is 4 by 5.  Multiply 16 and 20 respectively by 1/4, and you get the scaled version that is 4 by 5

the answer is B…
i think the question is self explanatory but it’s cause 16b20 * 1/4 = 4b5

i need help pls
and explination

i need help pls and explination

Answers

Your finding volume of a cylinder which the formula is 3.14r^2h to find the radius you divide the diameter which is 4.2 by two which is 2.1 which is your r then the height or h is 1.7 so 3.14(2.1)^2(1.7) which equals 23.5 rounded to the nearest tenth
23.5 is the answer to you’re question

Help asap. I am confused please put the answer

Help asap. I am confused please put the answer

Answers

Answer:

17.6706

Step-by-step explanation:

we know that in a rectangle triangle we can apply the Pythagorean theorem

\(16^2+7.5^2=x^2\)

so \(x^2=256+56.25=312.25\\\)

\(x = \sqrt{312.25} = 17.6706\)

Answer:

17.6706

Step-by-step explanation:

Give an example of an equation with an infinite number of solutions. Then make one change to the equation so that it has no solution.

An example of an equation with infinitely many solutions: 6x + 7 = 6x + _____
The equation with one change and no solutions: 6x + 7 = ______

Answers

Answer:

was rome

Step-by-step explanation:

solutions: 412421

Consider the linear system of equations. y = –x + 9 y = 0.5x – 6 If the solution is (a,–1), what is a? a =

Answers

Answer:

The value of a is 10.

Step-by-step explanation:

We are given with the following pair of the linear system of equations below;

\(y = -x+9\)  and   \(y = 0.5x-6\).

Also, the solution is given as (a, -1).

To find the value of 'a', we have to substitute the solution in the equation because it is stated that (a, -1) is the solution of the given two equations.

So, the x coordinate value of the solution is a and the y coordinate value of the solution is (-1).

First, taking the equation;

\(y = -x+9\)

Put the value of x = a and y = -1;

(-1) = -(a) + 9

a = 9 + 1 = 10

Now, taking the second equation;

\(y = 0.5x-6\)

Put the value of x = a and y = -1;

\((-1) = 0.5(a)-6\)

0.5a = 6 - 1

0.5a = 5

\(a=\frac{5}{0.5}\)

a = 10

Since we get the value of a = 10 from the equations, so the value of a is 10.

elect the correct answer. What is the product of (78)⁢(-16)⁢(-7)⁢(-114)? A. -7 B. -916 C. -17 D. 2312

Answers

Answer is none of the above

Step by step

Product is multiplication

(78)(-16)(-7)(-114) = ?

(78)(-16) = - 1248
(-1248)(-7) = 8736
(8736)(-114) = -996,904

Answer: The correct answer is not listed

Step-by-step explanation:

I got (-995,904)

PLEASE HELP PLEASE pls plspls pls pls plspls

PLEASE HELP PLEASE pls plspls pls pls plspls

Answers

Answer:

7725 sq.feet is the answer

A store bought a camera for $300 and sold it for $714. What was the markup percentage?

Answers

Answer:The markup is 40% of the $25 cost, so the markup is:

(0.40)(25) = 10

Then the selling price, being the cost plus markup, is:

25 + 10 = 35

The item sold for $35.

Step-by-step explanation:

PLEASE ANYONE HELP ME OUT WITH THIS QUESTION
Please Anyone Help Me Out With Digit 7

PLEASE ANYONE HELP ME OUT WITH THIS QUESTIONPlease Anyone Help Me Out With Digit 7

Answers

Answer 7 no capppppp
Haha sucks to suck jgjgfjfjhchcchccbcbbcnv

Is it fair or not? comment your answer below

Is it fair or not? comment your answer below

Answers

Answer:

Step-by-step explanation:

Nope Because it is so-pose to be 200

no i do not think it is fair it’s 200

The table shows the relationship between r and s, where s is the independent variable.

Which equation represents the relationship between r and s ?

The table shows the relationship between r and s, where s is the independent variable.Which equation

Answers

Answer:

Step-by-step explanation:

R=S -5/6

Pls hurry!!!!! What’s the code?????

Pls hurry!!!!! Whats the code?????

Answers

First is g^8 = O
Second is m^12 =X
Third is y^9 = O

First is J^4 = O
Second is h^3 = O
Third is M^13 = O

Code is = OOO

I think. I haven’t done products in a long time. Tried my best tho

Describe a dilation that uses a labeled point as its center and that would take F to H.

Answers

We need more to answer this

Write the missing number
:)

Answers

Answer:

u did not show any answers sorry bud

Step-by-step explanation:

where’s the problem?

if you had 0 apples and divided them between no body you get how much would you get
answer: none and you are sad because you have no friends

Answers

Answer:

0

Step-by-step explanation:

Are you tryna be Siri are something

An American traveling in Japan wishes to exchange American money for Japanese money. If the exchange rate is $1 = 80 yen, then how many dollars will the traveler need to purchase 10,000yen?

Answers

Answer: $125

Step-by-step explanation:

1/80=x/10,000

10,000/80=125

Hope this helped!

Answer:125 yen

Step-by-step explanation:
Ratio and proportion

Ratio=1:80=x:10,000

x represents dollars which is unknown

1/80=x/10,000

Then you cross multiply

80x=10,000

80x/80=10,000/80

x=125

Therefore,$125 will give you 10,000yen

? + 4a-5 = 3a-1? should it be negative?

Answers

-a+4

-a+4a=3a
-5+4=-1

-a+4

I need help please!!! thank you so much to the person who is going to help me.

I need help please!!! thank you so much to the person who is going to help me.

Answers

Answer:

5x - 3

Step-by-step explanation:

Subtract the numbers

(2x+5) + (3x-8)  ---->  2x-3 +3x

Combine like terms

2x-3 + 3x ----> 5x - 3

Answer

5x - 3

done! :)

5x-3
When parentheses are open you get 2x+5+3x-8
Because both parts with x are positive we add them together and get
5x+5-8
+5-8
Is the same as -3 because when you add 5 to -8 you are making the number greater
Hence you get 5x-3

Help!!! I need help on 11 and 10... unless you want to edit other answers.

Help!!! I need help on 11 and 10... unless you want to edit other answers.

Answers

11 is 1.76

Explanation: .66/1.5=.44x4=1.76
He is correct! Hopefully it goes well for you and have a wonderful day!

translation coordinate plane

translation coordinate plane

Answers

Answer:

D(-7,-3), E(-6,1), F(0,1), G(-1,-3

Step-by-step explanation:

To get the answer you need to add 2 to all of the points plotted on the x-axis which is the first number on the coordinate and then subtract 7 from all the points plotted on the y-axis which is the second number in the coordinate.

HOPE IT HELPED

Answer:

(-4,4)

Step-by-step explanation:

3 ft 9 in + 4 ft =
ft
in

Answers

Answer:

7 ft and 9 inches

Step-by-step explanation:

Answer:

7 ft 9 inches

Step-by-step explanation:

3 ft 9 in + 4 ft = 7 ft 9 inches

All you have to do is add the feet with the feet and add the inches with the inches. They want you to add 3 ft + 4 ft, which is 7 ft. There are no inches to add to 9 in, so that just remains 9 in.

Therefore, your answer is 7 ft 9 in.

I hope this helps! Have a lovely day!! :)

Plsss help one merrrf ef

Plsss help one merrrf ef
Plsss help one merrrf ef

Answers

Answer:

SURFACE AREA

Step-by-step explanATION

COMBINE ALL THE NUMBERS AND DIVIDE BY THE AMOUNT OF OBJECTS

Answer:

36 cm^2

Step-by-step explanation:

Length=4+3+5=12

Breadth=3

so, surface area = 12×3=26

Write 730,000,000 in scientific notation
730,000,000 = ------
× 10--------

help

Answers

Hello there!

The coefficient must be between 1 & 10. So the coefficient is 7.3.

7.3x10^8

Hope this helps! :)

\(GraceRosalia\)

7.30x10^8 you get this answer by getting the first 3 numbers and adding it to the first base of equation and the base which is always gonna be 10 when multiplying in scientific notation then count the zero’s and the numbers of the first coma.

The locations of student desks are mapped using a coordinate plane where the origin represents the center of the classroom. Maria's desk is located at (5, −1), and Monique's desk is located at (−2, 4). If each unit represents 1 foot, what is the distance from Maria's desk to Monique's desk?

square root of 10 feet
square root of 72 feet
square root of 74 feet
square root of 100 feet

Answers

Answer: the square root of 10 feet

I think it would be (7,4) because -2+7 is 5. And -1+5 is 4 so it would either be 7 units or 4 units? Im not completely sure tho im sorry!

The area of a triangle can be calculated by finding the product of the ?? of the triangle by the height, then ?? the product by ??.

Answers

Answer:

The area of a triangle can be calculated by finding the product of the base of the triangle by the height, then dividing the product by 2.

Step-by-step explanation:

Answer: hope this helps ♡

The area of a triangle can be calculated by finding the product of the base of the triangle by the height, then dividing the product by two.

Step-by-step explanation:

Area = ½ × b × h        Or        Area = b × h ÷ 2

The area of a triangle can be calculated by finding the product of the base of the triangle by the height, then dividing the product by two.

(eg: b=4 h=8          A=4×8÷2=16        Or        A=½×4×8=16)

The ratio of the perimeter of a regular hexagon to the length of one of its sides is always 6 to 1.
Complete the table.
Perimeter of hexagon (inches) 6 30 48
Side length of hexagon (inches) 1
9

Answers

Answer:

45

Step-by-step explanation:

6+30+48-1-9=45

Answer 45
Explanation: adding all number together equal 45

7 ones 2 tenths+4 tenths= how many tenths

Answers

Answer:

76

Step-by-step explanation:

7+0.2+0.4=7.6

7.6 times 10 is 76

7 + 0.2 + 0.4 = 7.6

7.6 x 10 = 76

76 is answer

please help me someone :

please help me someone :
please help me someone :

Answers

Answer:

First one is 44

Second is 24

Step-by-step explanation:

Divide it to small rectangle and find area then add together

answer to question:

8) 44cm^2

9) 27cm^2

Ricardo’s goal was to run 40 laps. At the end of the week, he ran 125% of his goal. How many laps is that?

Answers

Answer: He ran 50 laps.

Step-by-step explanation:

40 x 1.25 = 50

Answer:

50

Step-by-step explanation:

40/1   =   100/1

125% = 100/100   +   25/100

25% of 40 = 10

so you have the 40 laps which equal 100% and you also have 25 percent of the from the 125% and 25 percent of 40 is 10 so the answer is 40 plus 10 wich is 50

Hope this helps

Write a ratio and a percent for the shaded figure.

Write a ratio and a percent for the shaded figure.

Answers

Total Squares = 10 × 10

= 100

Shaded Squares = 100 - (6×6)

= 64

Non Shaded = 6 × 6

= 36

Now Ratio of shaded portion is 64:100

= 16:25

Percentage = 64/100 × 100

= 64%

Answered by Gauthmath must click thanks and mark brainliest

64 and 100 i hope it’s right I’m sorry
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