What is the appropriation for the perimeter of a semicircle with a diameter of 64 meters? Use 3.14 to approximate pi

What Is The Appropriation For The Perimeter Of A Semicircle With A Diameter Of 64 Meters? Use 3.14 To

Answers

Answer 1
A. it is half the perimeter/circumference of a circle and the equation for circumference it’s pi times the diameter. so divide the diameter by 2 because it is a semicircle to get 32. 32(3.14) = 100.48
Answer 2
The perimeter (circumference) a full circle is given by:
[tex]C _f = 2 \pi r[/tex]

A semi-circle is half a circle, so it has half the circumference. We can just multiply the circle's circumference by 2 to get a semi-circle's perimeter's equation, which is:
[tex]C_{sc} = \frac{1}{2}(2 \pi r) = \pi r [/tex]

We are given the diameter which is twice as big as the radius. So, we can divide that by 2 as well to get the radius. Hence, the radius is 32. Plug in numbers:
[tex]C_{sm} = \pi 32 = 100.48[/tex]

So, the perimeter of the semicircle is 100.48m.

Related Questions

15 POINTS!! HELP ME PLZ!!!
In conducting a survey of voters, a pollster selected every tenth name on a list of registered voters.
Which sampling technique did the pollster use?

a) convenience sampling
b) stratified sampling
c) systematic sampling
d) voluntary sampling

Answers

The answer is C: systematic sampling

Answer:

The awnser is C

Step-by-step explanation:

Ieda and Thanh both offer piano lessons. Ieda charges an initial fee of $8.50 and an hourly rate of $11.00. Thanh charges an initial fee of $10.00 and an hour rate of $10.50. At how many hours of instruction will the price for each instructor be the same?

Answers

8.5 + 11 X = 10 + 10.5 X
0.5x=1.5
x=3
after 3 hrs the price will be the same

the elevation of Denver Colorado is 13 times greater than that of waikapu. hawaii.the sum of their elevations is 5600 ft. find the elevation of each city

Answers

Answer:

400ft

Step-by-step explanation:

The elevation of Waikapu, Hawaii is 400 feet, and the elevation of Denver, Colorado is 5200 feet, derived from a simple algebraic equation based on their given relationship and sum of elevations.

We are given that the elevation of Denver, Colorado is 13 times greater than that of Waikapu, Hawaii, and the sum of their elevations is 5600 ft. To find the elevation of each city, we can set up a system of equations.

Let x represent the elevation of Waikapu, then the elevation of Denver is 13x. According to the problem, we can set up the equation as follows:

x + 13x = 5600

Combining like terms gives us:

14x = 5600

Dividing both sides by 14 to isolate x gives us:

x = 5600 / 14

x = 400

Now that we have the elevation of Waikapu, we can find Denver's elevation by multiplying 400 by 13:

Denver's elevation = 13 x 400 = 5200 ft

Therefore, the elevation of Waikapu, Hawaii is 400 feet, and the elevation of Denver, Colorado is 5200 feet.

combine the like terms 10 y + 1 x - 4y + 4x

Answers

10y + 1x - 4y + 4x = (1+4)x + (10-4)y = 5x + 6y
.....................................................................................................
To combine like terms means that we must perform the indicated operations in order to simplify an expression or solve an equation.

We begin with the expression:
10y+1x-4y+4x
First, we are going to combine the x terms. To do this, we use simple addition, similarly to if the variable x wasn’t there. We get:
10y-4y+5x
Next we are going to do the same thing with the y terms.
6y-5x
Because there are no more like terms left to combine, this is the most simplified answer that you can achieve for this question.

Hope this helps!

One lap around the track is 1/4 mile. Abby ran around the track 13 times.How far did she run?

Answers

Multiply the length of the lap by the number of times she ran the lap.

=13 * 1/4
multiply 13 by the numerator
=(13*1)/4
=13/4
convert to mixed number
=3 1/4 miles

ANSWER: The track is 3 1/4 miles.

Hope this helps! :)

Sandy spun a spinner with 5 equal parts labeled 1-5. What is the probability she will Not spin a 4

Answers

The probability that she will not spin a 4 will be 0.80 or 4/5.

What is probability?

Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.

Then the probability is given as,

P = (Favorable event) / (Total event)

Sandy spun a spinner with 5 equal parts labeled 1-5. Then the total number of events will be given as,

Total events = 5 {1, 2, 3, 4, 5}

Then the favorable events are given as,

Favorable events = 4 {1, 2, 3, 5}

Then the probability is given as,

P = 4 / 5

P = 0.80

The probability that she will not spin a 4 will be 0.80 or 4/5.

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Final answer:

The probability that Sandy will not spin a 4 on a spinner with 5 equal parts is 4/5 or 80%. There are 4 favorable outcomes and 5 possible outcomes in total.

Explanation:

The question asks for the probability that Sandy will not spin a 4 on a spinner that's divided into 5 equal parts, each labeled with the numbers 1-5. Since there are 5 outcomes and only one of them is the one we want to avoid, that leaves us with 4 favorable outcomes (spinning a 1, 2, 3, or 5). The probability of not spinning a 4 is therefore the number of favorable outcomes (not spinning a 4) divided by the total number of possible outcomes (spinning any number from 1 to 5).

To calculate this, we divide the favorable outcomes by the total number of outcomes. This gives us a probability of 4/5, or 80%. The calculation is as follows:

Number of favorable outcomes: 4 (spinning a 1, 2, 3, or 5)Total number of outcomes: 5 (spinning any number from 1 to 5)

Therefore, P(not spinning a 4) = 4 favorable outcomes / 5 total outcomes = 4/5 or 0.8, which means there is an 80% chance that Sandy will not spin a 4.

What is the sixth term in the binomial expression (5y+3)^10

Answers

1.₁₀C₀(5y)^10-0(3)^0
2:₁₀C₁(5y)^10-1(3)¹
3. ₁₀C₂(5y)^10-2(3)²
4. ₁₀C₃(5y)^10-3(3)³
5. ₁₀C₄(5y)^10-4(3)^4
6: ₁₀C₅(5y)^10-5(3)^5 ⇒ 
the answer is ₁₀C₅(5y)^5(3)^5   

Answer : The sixth term in the binomial expression is, [tex]^{10}C_5a^{5}b^{5}[/tex]

Step-by-step explanation :

The general formula to calculate the term of binomial expression is:

[tex]T_(r+1)=^nC_ra^{(n-r)}b^r[/tex]

where,

(r+1) = number of term

As we are given the binomial expression :

[tex](5y+3)^{10}[/tex]

For sixth term :

a = 5y

b = 3

n = 10

As, r + 1 = 6

So, r = 6 - 1

r = 5

Now put all the given values in the above formula, we get:

[tex]T_(r+1)=^nC_ra^{(n-r)}b^r[/tex]

[tex]T_(5)=^{10}C_5a^{10-5}b^5[/tex]

[tex]T_(5)=^{10}C_5a^{5}b^{5}[/tex]

Thus, the sixth term in the binomial expression is, [tex]^{10}C_5a^{5}b^{5}[/tex]

What symbol should be placed in the blank to make the equation true? 3 + 10___ 2 - 4 = 4

Answers

A division symbol (/) because, following PEMDAS, 10/2 is 5 -> 5+3=8 -> 8-4=4

Does 60, 63, 87 form a right triangle

Answers

no because if you use the pythagorean theorem, then you get 10,269=7,569. so the answer is no.
No because to form a right triangle you need all the degrees to add up to 90, so there for these will not form a right triangle. Hope this helps you

how do you write this in numerical expression and in a answer statement

Answers

To write this as a numerical expression, you will think of the different parts of the math story that are occurring and put them together in one math statement.  You have 12 books being ordered that are $9 each AND are paying a $15 shipping charge.  This can be written as 12 x $9 + $15.  There are 2 terms here - these are the 2 parts!  Multiply 12 times 9 first to get $108, then you can add the $15 shipping fee.  You can only add units that are the same, so you must multiply first. Your answer statement is a sentence that gives your final answer in a complete sentence.  For example, the total cost of Lannie's order is $123.

A survey asked 10 boys and 10 girls how many hours they spent playing video games the previous week. The number of hours are given in the line plots.And please explain how you got the answer

Answers

range:
boys: 15 - 8 = 7
girs: 15 - 3 = 12

so girls have greatest range

Median:
boys = 12
girls = 6.5

so boys have greatest median

answer:
first drop down: girls have greatest range
second drop down: boys have greatest median

The date set with the greater range is neither as the range is the same.

The median is not the same for both sets of data.

 

What is a median?

It is the middle value of the given set of numbers after arranging the given set of numbers in order.

We have,

Number of boys = 10

The number of hours from the 10 boys.

= 8, 10, 10, 10, 12, 13, 14, 15, 15, 20

Range = Highest value - Lowest value

= 20 - 8

= 12

Median = (12 + 13)/2 = 25/2 = 12.5

Number of girls = 10

The number of hours from the 10 girls.

= 3, 4, 4, 4, 6, 7, 8, 10, 10, 15

Range = Highest value - Lowest value

= 15 - 3

= 12

Median = (7 + 8)/2 = 15/2 = 7.5

Thus,

The range of both boys and girls is the same.

The median of boy's number of hours is 12.5.

The median of girl's number of hours is 7.5.

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Each option below lists three expressions. Which option lists expressions that are not equivalent?


A) 81^3/4 ; 27 ; ^4square root of81^3


B) 8 ; ^4square root of16^3 ; 16^.75


C) (625^.25)^3 ; (625^3)^1/4 ; 125


D) 256 ; 1,296^3/4 ; ^4square root of1,296^3

Answers

D) 256; 1,296 ^ 3/4; ^ 4square root of1,296 ^ 3
 Let's rewrite the expression step by step:
 1296 ^ 3/4
 (1296) ^ (3/4)
 (1296 ^ 3) ^ (1/4)
 (2176782336) ^ (1/4)
 216
 This result is different from 256.
 Answer:
 D) 256; 1,296 ^ 3/4; ^ 4square root of1,296 ^ 3

Answer:

D) 256; 1,296 ^ 3/4; ^ 4square root of1,296 ^ 3

 Let's rewrite the expression step by step:

 1296 ^ 3/4

 (1296) ^ (3/4)

 (1296 ^ 3) ^ (1/4)

 (2176782336) ^ (1/4)

 216

 This result is different from 256.

 Answer:

 D) 256; 1,296 ^ 3/4; ^ 4square root of1,296 ^ 3

Step-by-step explanation:

Round 0.68 to the nearest tenth

Answers

The answer is 0.7 by rounding to the nearest tenth

Answer:

0.7

Step-by-step explanation:

1. A parallelogram with four congruent sides is a? 2. A polygon with all angles congruent is a? 3. Angles of a polygon that share a side are? 4. A blank is a quadrilateral with exactly one pair of parallel sides?

Answers

number one is a square number two is quadrillateral

Josie selected a number n. She divided n by 2 and then subtracted 0.5 from the result. She took half of that result and then subtracted 0.5 to get the final result of 10. What is the value of n?

Answers

Your answer is N= Forty three

the answer is 43

to get this just do the problem backwards from 10 witch you would add .5 to get 10.5 and then multiply by 2 to get 21 then add .5 again to get 21.5 then you multiply it again by 2 to get the answer of 43

hope this helps GL

What is the next expression in the following pattern: 4n; 8n; 16n???

Answers

The next expression in the pattern is 32n

A rectangular prism has a length of 3 1/2 inches, a width of 5 inches, and a height of 1 1/2 inches.



What is the volume of the prism?



Enter your answer in the box as a simplified mixed number or a decimal.

Answers

Hello!
----------
The volume of the prism is 26.25 inches
----------
WORK: 3.5*3.5*1.5=26.25
----------
Have a great day!

Answer:

26.25

Step-by-step explanation:

I took the test.

Which word has line symmetry, DAD, ODE, or HOME

Answers

DAD

_________________
im guessing it would be ODE because you can split all three words in 1/2 and still have perfect symmetry, you cannot split the other words and have symmetry like you can with ODE

hope my answer helped, have a good day

What is the volume of the pyramid to the nearest whole unit?

A. 1,134 yd^3
B. 567 yd^3
C. 378 yd^3
D. 284 yd^3

Answers

Volume = 1/3 * height * area of the base

            = 1/3 * 9 * (9*14)  =  378 yd^3  Answer

Can someone help me on both of the questions?!

Answers

(1) The correct answer is: Pressure = P = 70 N/m²
 
Explanation:
Pressure is force per unit area. Mathematically, we can write Pressure as follows:
 
[tex]P = \frac{F}{A} [/tex] --- (1)

Where P = Pressure = ?
F = Force = 140N
A = Area = 2.0m²
 
Plug in the values in (1):
P = 140/2.0
P = 70 N/m²
 
(2) The air particles in the inflated balloon are in chaotic motion. They are moving randomly and colliding with each other and with the inner wall of the balloon, exerting pressure on the wall of the balloon. Furthermore, they are far apart from each other, which is why when you squeeze the balloon, its shape changes accordingly as long as you are putting pressure on it while squeezing.

Step-by-step explanation:

The expression for the pressure in terms of force is as follows;

[tex]P= \frac{F}{A}[/tex]

Here, F is the force, P is the pressure and A is the area.

It is given in the problem that an object exerts 140 N of force on a surface that has an area of 2.0 meter square.

Put F= 140 N and A= 2 meter square in the above expression.

[tex]P= \frac{140}{2}[/tex]

[tex]P= 70 N/m^2[/tex]

Therefore, the pressure exerts on the object is 70 N/m^2.

The motion of air particles inside an inflated balloons:

In the inflated balloons, the molecules of air are far apart. These molecules are in random motion. They collide each other inside the surface of the balloons. The pressure will be exerted by the air molecules on the surface of the balloons. The pressure caused by atmospheric molecules collides with the outside the surface is equal to the pressure caused by atmospheric molecules collides with inside the surface of the inflated balloons. Therefore, the volume of the balloons remains constant.

You deposit $350 in a savings account. The account earns 2.5% simple interest per year. What is the balance after 2 years?

Answers

Answer:

Balance = $367.5

Step-by-step explanation:

The 2.5% of $350 is,

→ (350/100) × 2.5

→ 3.5 × 2.5

→ $8.75

The balance after 2 years is,

→ $350 + (2.5%) × 2 years

→ 350 + 8.75 × 2

→ 350 + 17.5

→ $367.5

Hence, the answer is $367.5.

The balance after 2 years on principle amount of $350 at the rate of 2.5% will be $525.

What is Simple interest?

The simple interest method, which adds interest to the starting principal amount at the same rate every day, is a quick and easy technique to calculate the interest on that money.

Simple interest is a way to calculate the amount of interest that will be charged on a certain amount of money at a certain rate and for a certain period of time.

As per the information in the question,

Principle amount, p = $350

Rate, r = 2.5%

Time, t = 2 years.

Use the formula of simple interest,

[tex]S.I = (p*r*t)/100[/tex]

S.I = (350 × 2.5 × 2)/100

S.I = 17500/100

S.I = 175

Now, the total amount will be,

$350 + 175 = $525

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A student used the equation below to create a table.

y = –3x – 5

The student used –2 as one of the values for the input. Which ordered pair could be taken from the table?

A. (–11, –2)
B. (–2, –11)
C. (–2, 1)
D. (1, –2)

Answers

C. (-2,1)

Hope this helps<3
I think the answer is C.

A rectangular football field is 64 meters wide and 100 meters long. A player runs from one corner of the field in a diagonal line to the opposite corner. How far did the player run? Round your answer to the nearest meter.

Answers

The distance covered by a player on a rectangular football field will be 118.73 meters.

What is a Pythagoras theorem?

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

H² = P² + B²

A rectangular football field is 64 meters wide and 100 meters long. A player runs from one corner of the field in a diagonal line to the opposite corner.

Then the distance covered by a player on a rectangular football field will be given by the Pythagoras theorem.

H² = 100² + 64²

H² = 10000 + 4096

H² = 14096

H = 118.73 meters

The distance covered by a player on a rectangular football field will be 118.73 meters.

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Zacarias and Paz together have $756.80. If Zacarias has $489.50, how much does Paz have? Write and solve an addition equation to find how much money belongs to Paz

Answers

489.50+x=756.80
You have to subtract and do 756.80-489.50 to find out how much money Paz has
It equals 267.3
Paz has $267.3 

Can You show me how to do this?

Answers

The ordered pair for C would be (3,-7)

The ordered pair for D would be (3,5)

My explanation would be that i counted that line segment AB is 12 units long. Then i doubled 12 (Because 12 would be on both sides of the rectangle) and had the equation 40-24 this equals 16. Finally you divide 16 by 2, so you can have the rest of the perimeter split up equally to equal 40 units.

e vertices of a trapezoid are shown below. P(0, 0), Q(2, 0), R(2, 5), S(0, 10) This trapezoid is dilated about the origin by a scale factor of 3. What is the location of point Q'?

Answers

The location of point Q' after the dilation is (6, 0).

What is dilation?

Resizing an item uses a transformation called dilation. Dilation is used to enlarge or shorten the structures. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. The initial form should be stretched or contracted during a dilatation.

To dilate the trapezoid by a scale factor of 3 about the origin, we need to multiply the coordinates of each vertex by 3.

The coordinates of Q are (2, 0), so to find the coordinates of Q' after the dilation, we multiply both the x and y coordinates by 3:

Q' = (32, 30) = (6, 0)

Therefore, the location of point Q' after the dilation is (6, 0).

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how many kilograms is in 2,500 dekagrams

Answers

25 kilograms.

Kilo
Hecto
Deka
meter/liter/gram
Deci
Centi
Milli


That’s the order you should memorize. Hope this helped!

instruction: You must show all of your work bysl setting up the problem using combinatorics and simplifying completely.

question: There are 5 red marbles and 9 blue marbles in a bag. suppose two of the marbles are cracked. how many ways can four marbles be selected so that either no cracked marbles are selected or just one cracked marble is selected?

Answers

There are 14 marbles in the bag, and we either want to get 0 or 1 cracked one (out of 2 cracked marbles) in 4 draws. Since there are 12 uncracked marbles and 2 cracked ones:
To get 0 cracked marbles, there are 12C4 ways (to draw 4 marbles out of the 12 uncracked ones only). 12C4 = 495 ways
To get 1 cracked marble, we need 3 to be from the 12 uncracked ones, and 1 from the 2 cracked ones. This means there are 12C3 x 2C1 = 440 ways
So the total number of ways is 495 + 440 = 935 ways.

A kite has vertices at (2,4) (5,5) (5,1) and (0,-1) what is the approximate perimeter of the kite?

Answers

Perimeter = sum of length of sides = 2( sum of the unequal sides)
length of (2, 4) to (5, 4) = 
length of (5, 1) to (0, -1) =
Perimeter = 2(3 + 5.39) = 2 x 8.39 = 16.8 units

An object accelerates 5.0 m/s2 when a force of 20.0 newtons is applied to it. What is the mass of the object?

Answers

Fore = mass × acceleration

Force = 20N
Acceleration = 5m/s²

20 = m × 5

m = 20/5

m = 4kg...

Hope this helped.?
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