Mathematics Middle School

PLZ!!! HELP!!!!!!!!!

This figure is 14 of a circle.

What is the best approximation for the perimeter of the figure?

Use 3.14 to approximate pi.

A.7.85 in.
B.12.9 in.
C. 17.9 in.
D. 31.4 in.

The file is the picture of the quarter or 1/4 circle

Answers

Answer 1
The answer is c with a side of bacon hope that helps. :)
Answer 2

Answer:

C. 17.9

Step-by-step explanation:

Formula: 1/4 π x d

d = diameter

d = 2r

1/4 π  x  10 = 10/4 π

Add the 2 non-curve sides

5 + 5 = 10

10/4  x  (3.14 = π)  x  10

= 17.9

I hope this helps! :)

Related Questions

Need help soon.




How many pieces 1/3 of a foot each can I make out of 7 feet of rope?

Answers

In order to find how many pieces of 1/3 feet rope you can make out of 7 feet rope, you have to divide 7 feet by 1/3 feet.

7/ (1/3) = 21 pieces

Therefore, you can make 21 1/3 – feet ropes.

Basically all you need to do is divide the total amount of rope you have by the amount of each piece so...

7 ÷ [tex] \frac{1}{3} [/tex]
[tex]7 * \frac{3}{1} = 21[/tex] pieces



HHEELLPP PLLEEASE I GIVE !BRAINLIEST! PLEASE HELP ME

Answers

Hi!

The y-intercept is (0,10)

The slope is m=7
4a) see the graph

4b) The y-intercept is 10. It is the number of points earned if the trick lasts 0 seconds.

4c) The slope of the line is 7. 7 additional points are earned for each second the trick is held.

n cold climate areas, trucks are used to disperse salt on the roads in order to de-ice the roads, making them safe for travel. In some cases, cone- shaped sheds store the salt during the off-season, or until the roads need to be de-iced. This large salt storage shed sits 12 feet above the ground and holds approximately 51.4 cubic feet of salt. To the nearest hundredth of a foot, what is the radius of the large storage shed? Use 3.14 for . In your final answer, include all of your calculations.

Answers

To find the radius of the circular storage shed, you will use the formula for finding the volume of a cone (V=1/3 x pi x r^2 x h, where r is the radius and h is the height.

You will substitute in the information you know and then solve for the radius(r).

Please see the attached picture for the steps necessary to get an approximate radius of 2.02 ft as the radius.

The radius of the large storage shed is approximately 2.023 feet to the nearest hundredth of a foot.

To find the radius of the large storage shed, we need to use the formula for the volume of a cone, which is given by: [tex]\[ V = \frac{1}{3} \pi r^2 h \][/tex]

where V is the volume, r is the radius of the base, h is the height and [tex]\( \pi \)[/tex]is approximately 3.14. We are given that the volume V is 51.4 cubic feet and the height h is 12 feet. We need to solve for r.

First, let's rearrange the formula to solve for r: [tex]\[ r^2 = \frac{3V}{\pi h} \][/tex]

Now, plug in the given values:

[tex]\[ r^2 = \frac{3 \times 51.4}{3.14 \times 12} \][/tex]

[tex]\[ r^2 = \frac{154.2}{37.68} \][/tex]

[tex]\[ r^2 \approx 4.093 \][/tex]

Now, take the square root of both sides to find r:

[tex]\[ r \approx 2.023 \][/tex]

So, the radius of the large storage shed is approximately 2.023 feet to the nearest hundredth of a foot.


[tex] \frac{7x + 21}{x2 + 5x + 6} \div \frac{x + 6}{x + 2} [/tex]

Answers

[tex]Heya \:! \\ \\
given \: expression \: - \\ \\ \frac{7x + 21}{ {x}^{2} + 5x + 6} \div \frac{x + 6}{x + 2} \\ \\ \\ \frac{7x + 21}{ {x}^{2} + 5x + 6} \times \frac{x + 2}{x + 6} \\ \\ \\ \frac{7(x + 3)}{(x + 3)(x + 2)} \times \frac{(x + 2)}{(x + 6)} \\ \\ \\ = \frac{7}{(x + 6)} \: \: \: \: \: ans.[/tex]

please help i will mark brainliest and explain

Answers

3^0 is 1.
5^2 is 5 times itself 1 times, which is 5 x 5, which 25.
1+25=26. Meaning that choice A is best.

3^0 = 1 (Anything to the power 0 is 1)
5^2 = 25
1 + 25 = 26

Make a story problem for 6 divided by 1/3.

Answers

Adam bought 6m of cloth.
He wanted to cut the cloth into strips of 1/3m long each.
How many strips would be get?

I'll give brainliest if you show your work. Plz answer quickly.
Nolan used the following procedure to find an estimate for the square root of 18.
Step 1: Since 4^2=16 and 5^2= 25 and 16 < 18 < 25, the square root of 18 is between 4 and 5.
4.1^2=16.81
4.2^2=17.64
4.3^2=18.49
4.4^2=19.36
Step 3: Since 18.49 rounds to 18, 4.3 is the best approximation for the square root of 18.
In which step, if any, did Nolan make an error?
A) In step 1, the square root of 18.
is between 4 and 5 because the square root of 18 equals about 20 and 4 times 5= 20.
B) In step 2, he made a calculation error when squaring.
C) In step 3, he should have determined which square is closest to 18.
D) Nolan did not make an error.

Answers

Nolan correctly identified the square  numbers before and after 18.

The square roots of them are 4 and 5.

Clearly, square root of 18 should lie between 4 and 5 only.

He, then carefully squared 4.1, 4.2, 4.3 etc. and identified that 4.3 squared is nearer to 18.

Since, Nolan is finding estimated square root, his steps are cool and he didn't make any error.

Answer: C

Step-by-step explanation:

Took a quiz

Solve the equation and show all work please show steps!!
e/5-14=8

Answers

e/5-14=8
--------------
Simplify
1/5e - 14 = 8
----------------
Add 14 to each side
1/5e-14+14=8+14
1/5e = 22
-------------------
Multiply each side by 5
5 * 1/5e = 22 * 5
e = 110

zayna is putting ribbon around a picture of her dog the picture is 300 mm wide and 150 mm tall how many meters of ribbon will she need

Answers

Answer is 0.9m of Ribbon

2(300mm) + 2(150mm)

600mm + 300mm = 900mm

900mm = 0.9m

Help with #11, show work!

Answers

To figure it out, add 50 and 35 together to get 85. 
Add 10 and 7 together to get 17. 
Divide 85 by 17 to get 5. 
The missing number is 5. 
hope this helps!

I asked this earlier and got no answer. Will give brainliest


The area of a square in 225 inches squared.

a. Write a quadratic equation that can be used to find the dimensions of the square.

b. Solve the equations. What are the dimensions?

Answers

The area of a square is

s • s

We can also write this as

s^2

So, for any side length “s”, we can make a function, A(s), such that

A(s) = s^2

Now that we have a quadratic equation for the area of a square, let’s go ahead and solve for the side lengths of a square with a given area. In this case, 225 in^2

225 = s^2

Therefore,

s = sqrt(225)

s = 15

So, the dimensions are 15 x 15 in

5/6 x2 1/5 will be _________21/5

Will it be grater then,
less then
or equal to

Thank you for your help

Answers

Hello There!

You need to find out which fraction is greater.

First, you need to solve 5/6 x 2 1/5
--------------------------------------------------------------
                         [tex]Solving[/tex]
--------------------------------------------------------------

                         5 x 11 =  55
                      -------------  ----   Simplified is   1 5/6
                         6 x 5 =    30
------------------------------------------------------------------
                     The LCD [ Least Common Denominator ] is 30. 
                 so, 55/30 & 126/30
                 
             Therefore, 1 5/6 is less than 21/5
 
      Hope this helped!
          

You put $5000 in an account. The account earns $2250 simple interest in 10 years. What is the annual interest rate?

The annual interest rate is

Answers

the rate is 5% a year 

The annual interest rate is 4.5%.

What is the simple interest?

Simple interest is a method to calculate the amount of interest charged on a sum at a given rate and for a given period of time.

Simple interest is calculated with the following formula: S.I. = (P × R × T)/100, where P = Principal, R = Rate of Interest in % per annum, and T = Time.

Given that, principal =$5000, simple interest=$2250 and time period= 10 years.

Here, 2250= (5000×R×10)/100

225000=50000R

R=225000/50000

R=4.5%

Therefore, the annual interest rate is 4.5%.

To learn more about the simple interest visit:

https://brainly.com/question/25845758.

#SPJ6

Pleaseeeee halpppp

Determine how many actual fish food boxes fit in the shipping box. Show your work.

Find the volume of the shipping box using the two methods and show your work:
Packing cubes
Using the volume formula

Explain how both methods provide the same measurement of volume for the shipping box.

Answers

the volume would be 36 9/16
(L•W•H)
hope this helps u have a nice day

Answer:

Number of boxes that will fit =2340

Step-by-step explanation:

The shipping box volume can be calculated by the formula V = Lxwxh ,where L ,w ,h are length ,width  and height of the box.

The length of the shipping box =[tex]3\frac{3}{4} =\frac{15}{4} ft.[/tex]

Width = 3 ft.

Height =[tex]3\frac{1}{4} =\frac{13}{4} ft.[/tex]

Volume of shipping box =[tex]\frac{15}{4} .3 .\frac{13}{4} =\frac{585}{16} = 36.6 ft[/tex].cubic ft.

Volume of shipping box can also be calculated by multiplying base area with the height of box.

Base area of box = [tex]\frac{15}{4} .3=\frac{45}{4} square ft.[/tex]

Volume of box = base area x height =[tex]\frac{45}{4} .\frac{13}{4} = 36.6 cubic ft.[/tex]

Volume of packing cubes =[tex]\frac{1}{4} .\frac{1}{4} .\frac{1}{4} =\frac{1}{64}[/tex] cubic ft.

Number of fish boxes that will fit in the shipping box = volume of shipping box ÷ volume of fish food box = 36.6 ÷ [tex]\frac{1}{64}[/tex] =2340 .

In a four-team basketball league, each team has played every other team 4 times. A team earned 3 points for a win, 1 point for a tie and no points for a loss. The total accumulated points were: Bulls 22, Lakers 19, Knicks 14 and Warriors 12. How many games ended in a win and how many games ended in a tie?

Answers

ok so heres how to approach this. If a game ends in a win, 3 total points are awarded. 3 to the winner, 0 to the loser. If a game ends in a tie, 2 points are awarded total, one to each team. The total points awarded is 22+19+14+12=67. Because there are 4 teams, there are 2 games per week (2 teams per game) and 12 weeks so 24 total games. So if t=games tied and w=games ended in a win, we have 2 equations. 3w+2t=67 and t+w=24. Solving for t, t=24-w. Plugging into the other equation, 3w+2(24-w)=67. Which is w+48=67 so w=19 and t+19=24 so t=5.

Ray is x years old. His brother Ron is y years older than Ray.

What will the sum of their ages be in 5 years?

Answers

The sum will be x+y because their ages are variables.
I am not sure but i think its correct

Can’t afford to get wrong please do not write if you don’t know thanks !

Answers

You don't need to understand the construction or why it works. You only need to accept the fact that it does. You can figure out the answers to this question by looking at the picture.

RT is tangent to circle Q -- TRUE. That is the point of the construction.

QT is a radius of circle Q -- TRUE. Q is the center and T is on the circle. A line segment from the center to a point on the circle is a radius.

m∠QSR = 90° -- FALSE. Those points lie on the same line. The measure of the angle is 180°.

QS = QT -- FALSE. S lies inside circle Q, so is closer to the center than T, which lies on the circle. (For some choice of point R, S might lie on the circle, but because this statement is not always true, it must be considered false.)

ΔRTQ is a right triangle -- TRUE. A tangent line is always perpendicular to the radius to the point of tangency. The construction succeeds because RTQ is inscribed in semicircle RTQ (centered at S). Such a triangle is always a right triangle.

Mrs.martin made 15 3/4 gallons of sweet tea for a celebration how many quarts of sweet tea did ms.martin make

Answers

To answer this question you will need to know how many quarts there are in one gallon (the conversion of 1 gallon = 4 quarts). This is 15 3/4 groups of 1 gallon which is the same as 15 3/4 groups of 4 quarts.

15 3/4 x 4 - convert the 15 3/4 and 4 to improper fractions.

73/4 x 4/1 (you can cross cancel the 4's because one is in the numerator and one in the denominator (4/4=1),

73/1 = 73 quarts in 15 3/4 gallons.

Mrs. Martin made 73 quarts of sweet tea.

A conical hat has a radius of 7 inches and a height of 14. What’s the slant height

Answers

The slant height of a conical hat with a radius of 7 inches and a height of 14 inches is found by using the Pythagorean theorem, leading to a slant height of approximately 15.65 inches.

To find the slant height of a conical hat with a radius of 7 inches and a height of 14 inches, we use the Pythagorean theorem for the right triangle formed by the radius, height, and slant height of the cone. The slant height is the hypotenuse of this right triangle, while the radius and the height are the two legs.

The formula for the Pythagorean theorem is:

a^2 + b^2 = c^2

Where:

a is the radius of the cone (7 inches),

b is the height of the cone (14 inches), and

c is the slant height of the cone (what we are trying to find).

Substituting the values into the formula, we get:

7^2 + 14^2 = c^2

49 + 196 = c^2

245 = c^2

To find c, we take the square root of both sides:

c = √245

The slant height (c) is then calculated to be:

c ≈ 15.65 inches

Todd bought one and 1/2 yards of fabric each pillow uses 3/8 yards of fabric how many pillows can Todd make

Answers

It's 4 I think sorry if I didn't help

Find the cardinal number for the following sets.

A​ =​ {102​, 103​, 104​, 105​,..., 155​}      
B​ = ​{102​, 104​, 106​, ​..., 252​}

Answers

Cardinal number, more commonly called cardinality, is the number of members of a given set.

For example, if P={1,4,6}, cardinality is 3 because there are three member in the set.

For A, the numbers run consecutively from 102 to 155, so there are (155-102)+1=54 members.  The cardinality is therefore 54
Similarly, for B={102,...252}, there are (252-102)+1=151 members.  So the cardinality is 151.

In South Australia, an average of 16 400 000 packets of chips were eaten each day. After a campaign by the health department this amount reduced by 3.9 million.

How many packets of crisps were eaten after the campaign?

Answers

16,400,000 - 3,900,000 = 12,500,000

Please help with the ones I circled for brainliest! thank you so much

Answers

1) Subtract the upper right 10 ft square from the overall 18 ft square.
.. (18 ft)^2 -(10 ft)^2 = 224 ft^2

3) The area of this is the sum of the areas of a rectangle 11 in by 7 in, and a triangle with base 7 in and height 5 in.
.. (11 in)*(7 in) +(7 in)*(5 in)
.. = (7 in)*(11 in +2.5 in) = 94.5 in^2

4) The central rectangle is 10 cm by 14 cm; the remaining triangle has a height of 7 cm and a base of 24 cm.
.. (10 cm)*(14 cm) +(24 cm)*(7 cm)/2
.. = 140 cm^2 +84 cm^2
.. = 224 cm^2

I need help on this one please

Answers

0.80 euros

1.80-1= 0.80

hope this helps! :)

Morty buys and sells computer parts he bought two monitors for $25 each and later sold them for 88 each he bought four cases for $15 each and later sold them for $24 each if you buy five memory modules for $20 each and later sold them for $55 each
Morty’s total cost for the items he purchased was?
Morty revenue from the sale of the item was
Morty’s total profit was

Answers

Answer:

Step-by-step explanation:

Cost = 25×2 +15×4+20×5 = $210

Revenue = 88x2+24×4+55×5 = $547

Profit = Revenue - Cost = 547 - 210

Profit = $337

HELP!! Adding and subtracting radicals

Answers

1. 8x^3y4 3√xy - The first option
2. 6√5 - The third option
3. 7 5√x^2y - The third option
4. 3√2x-6(3√x) - The third option

The supplement of an angle has a measure that is 20 degrees more than twice the measure of an angle , x degrees. Which equation can be used to find the value of x?

A) 2x + 20 = 90
B) 2x + 20 = 180
C)(2x + 20) + x = 90
D)(2x + 20) + x = 180

Please Help Me

Answers

Selection D is appropriate.

_____
I would write it differently.
.. 180 -x = "supplement of an angle"
.. 2x +20 = "20 more than twice the measure"
These are said to be equal, so I would write it as
.. 180 -x = 2x +20
Of course, adding x to both sides of this equation makes it
.. (2x +20) +x = 180 . . . . . . matches selection D

Larry Mary and Terry each had a full glass of juice Larry drank 3/4 of his Mary drank 3/8 of hers Terry drank 7/10 of his who drink less than 1/2 of their juice

Answers

Hello!

Let's convert these fractions to decimals.

To convert a fraction to a decimal, simply divide its numerator by its denominator.

3/4 = 0.75

3/8 = 0.375

7/10 = 0.70

1/2 = 0.50

ANSWER:

Since Mary only had 3/8 of her juice, she drank less than half of her juice.

Arturo builds a cube that measures 5 in on each side. What is the volume of Arturo's cube?

Answers

we know that

[volume of a cube]=b³
where 
b------> is a side length of a cube
for b=5 in
[volume of a cube]=5³--------> 125 in³

the answer is 125 in³

There are twice as many liters of water in one container as in another. If 8 liters of water are removed from each of the two containers, there will be three times as many liters of water in one container as in the other. How many liters of water did the smaller container have to begin with?

Answers

Suppose the # of litres in the small container is 'x'.
This would make '2x' litres of water in the larger container.
After taking 8 litres from both containers, the following equation can be written:

(2x-8) = 3 (x-8)

Open the brackets:

2x-8 = 3x-24

Collect like terms:

x = 16

There were 16 litres in the smaller container
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