Mathematics High School


The diagram below models the diameter of the bicycle wheel
21.75
Which of the following is closest to the distance of the length when the bicycle wheel
makes 1 revolution?
A7 inches
B 25 inches
C34 inches
D69 inches


Can anyone help me!!

The Diagram Below Models The Diameter Of The Bicycle Wheel21.75Which Of The Following Is Closest To The

Answers

Answer 1
Answer: (21.75 / 2) * 2 * pi = 68.42...in, answer D.

Explanation: one revolution from a wheel will be a 360 degree rotation, meaning that if you had laid your finger on the outside of the wheel as it made its full rotation, your finger would have touched the entire circumference of the wheel. Thus, we can represent the length of 1 revolution as the circumference. Thus we take the diameter, and divide it by 2 to get the radius. Then we simply multiply by 2 * pi * r (r = radius). This is the formula for the circumference of a circle.

Related Questions

What is 21 X 21 ????
3 3​

Answers

Answer: 441

Step-by-step explanation:

21 x 21 = 441

Answer:

21 times 21 is 441

Step-by-step explanation:

i used a calculator



A cylinder has a base radius of 10m a height of 18m. What is its volume in cubic

m, to the nearest tenths place?

Answers

Answer:

5656 m^3

Step-by-step explanation:

Volume of a cylinder can be calculated using below formula

V = πr²h

Where

h= height =18m

r= radius= radius = 10m

If we substitute the values we have

V = π × (10)²× 18

= 5655.6 m^3

= 5656 m^3

Answer: 5654.9

Step-by-step explanation:

Ms. Johnson is drawing a floor plan of her square room that has an area of 100 ft2. She is using the scale of 0.5 inch =2 ft. What is the length of her room on the floor plan?

Answers

Answer:

it's 2.5 inches cool profile pic to

Step-by-step explanation:

The triangle represents a scale drawing that was created by using a factor of One-half.

A triangle with sides lengths of 5 inches.

Which is true of the measures of the sides of the original triangle?
Each side of the original triangle is One-half the length of each side of the scale drawing.
Each side of the original triangle is 2 times the length of each side of the scale drawing.
Each side of the original triangle is the same length as each side of the scale drawing.
Each side of the original triangle is 2 inches shorter than the scale drawing.

Answers

9514 1404 393

Answer:

  (b)  Each side of the original triangle is 2 times the length of each side of the scale drawing.

Step-by-step explanation:

If the smaller is 1/2 the larger, then the larger is 2 times the smaller. The original triangle's sides are 2 times those of the scale drawing.

Jose has scored 555 points on his math tests so far this semester. To get an A for the semester, he must score at least 660 points. Write and solve an inequality to find the minimum number of points he must score on the remaining tests, n, in order to get an A.

Answers

If I am not wrong, n = 105, because 660-555=105.

A man covers 1000meters when he completes five rounds around a square field. what would be the length of the field?

Answers

200m i’m pretty sure
1000 metres =5 rounds
1000/5=200 metres= 1 round
Perimeter of square = 4 times length
4 times length =200
Length =200/4
Length =50 metres

What is the answer?
Is it A B C or D

Answers

Answer:

D

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

square the 3 and times 4 and 2

Hiro painted his room at a rate of 8 square meters per hour. After 3 hours of painting, he had 28 square meters left to paint. Let A(t) denote the area to paint A (measured in square meters) as a function of time t (measured in hours). What is the Functions formula? A(t)=?​

Answers

Answer:

cgnnjfcjifchhgsiwjcjcbanxjdhw

Two figures have a similarity ratio of 5:8. If the volume of the smaller figure is 875 mm, what is the
volume of the larger figure in cubic millimeters? Solve and explain the process you used to solve the
problem

Answers

Answer:

Step-by-step explanation:

The "h" in the lateral area formula, L = Ph, stands for

Answers

P= perimeter of the base P=(2 x L) + (2 x w) h= height. Total Surface area: S= Ph + 2B.

Can someone pleaseeee help and if you’re correct I’ll give u brainlist!

Answers

Answer:

Rotations, Reflections

Step-by-step explanation:

This is going to be our answer because we know that a figure has some kind of rotation.

A rotation is when a shape can be rotated in some way. A reflection is a transformation representing a flip of a figure. Figures may be reflected in a point, a line, or a plane. When reflecting a figure in a line or in a point, the image is congruent to the preimage. A reflection map every point of a figure to an image across a fixed-line.

So our answer would be Rotations, Reflections!

Hope this helps!

If it is correct please mark as Brainllest!

Have a good Day!

Solving Systems using tables

Mikayla put $212 in a savings account at the beginning of the year. At the end of each month, she withdrew $12 from her account. Mathew put $30 in his savings account at the beginning of the year. At the end of each month, he deposited $14 in his account. Let x represent the number of months which have passed and y represent the amount in each savings account.

A. Write an equation to represent the amount in Mikayla’s savings account.

B. Write an equation to represent the amount in Matthew’s savings account.

C. Below make an input-output tables that show the amount in each account for the first 8 months

D. When will Mikayla and Matthew have the same amount in their accounts?


Mikayla Matthew
X Y X Y
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8

Answers

Answer:

i hope this helps

Step-by-step explanation:

3% is the interest rate. Using the formula I=PRT, you can simply derive the rate by putting the given numbers in.

I = 450P = 3,000R = ?T = 5 Years

The equation now goes,450 = 3,000 * R * 5450 = 15,000 * R450/15,000 = R0.03 = R

multiply it by 100,

R = 3%

Jared measured a house and its lot and made a scale drawing. The scale of the drawing was 5 millimeters : 3 meters. The actual length of the front lawn is 69 meters. How long is the lawn in the drawing?

Answers

Answer:

115mm

Step-by-step explanation:

5/x = 3/69

5/x = 1/23

5*23 = x

115 = x

If Brian took the same test and received a score of 80 % how many questions did he get right? ( hint the test is out of 20 points )

Answers

Answer:

16

Explanation:

First you convert  

80

%

into a decimal which is  

.80

then you multiply it by  

20

.

.80

×

20

=

16

We multiply it by  

20

because that's our total and by  

.80

because that's the amount that we got correct. Had it been  

100

%

then that would mean we got every question right.

Step-by-step explanation:

The answer is 16. If the test is 20 questions, each question is 5 points. (100/20)

add x³-2x²y+4xy²-y³,2x³-5xy²+3x²y-4y³​

Answers

Answer:

Step-by-step explanation:

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

What is the surface area of the cone in terms of r?
15 m
8 m
I m2

PLEASE HELP MEEE

Answers

Answer:

I need help too

Step-by-step explanation:

An hour before showtime only 105 people have a ride for a concert according to sales 95% of the people have yet to arrive how many tickets were sold for the concert explain

Answers

Given:

An hour before showtime only 105 people have arrived for a concert.

According to sales 95% of the people have yet to arrive.

To find:

The total number of tickets sold.

Solution:

Let x be the total number of tickets sold.

According to sales 95% of the people have yet to arrive.

[tex]100\%-95\%=5\%[/tex]

It means, only 5% people have arrived.

[tex]\dfrac{5}{100}x=105[/tex]

[tex]\dfrac{1}{20}x=105[/tex]

[tex]x=105\times 20[/tex]

[tex]x=2100[/tex]

Therefore, the total 2100 tickets were sold.

Write as an algebraic expression.
1. the sum of m and 8



​

Answers

Answer: m+8 =

Step-by-step explanation:

Help me for 25 points !!!! And brainlist!!!!

(Don’t answer if u don’t know cause then i will report you)

Answers

Answer:

its 37° because both the triangle are congruent to each other.

Step-by-step explanation:

i answer ur ans how much i know but please don't report me okay

i think it’s 37

EXPLANATION:

HELP MEEEE!!!!!!!!!!!!!!!!!!!! I will give brainliest to whoever answers first.

Answers

Answer:

B = 114

Step-by-step explanation:

and i answered first

what is the y-value

y = 6x – 3

x+2y = 7

Answers

Answer:

i love algebra anyways

the ans is in the picture and the steps how got it

(hope it helps can i plz have brainlist it will make my day :D hehe)

Step-by-step explanation:

Multiply (x – 3)(x + 5)

Answers

Answer:

x^2+2x-15 hope it helps

x^2-2x+15

I believe hope this helped !!

Find the scale factor
A. 3.5
B. 3/5
C. 35

Answers

Answer:

3.5

Step-by-step explanation:

35/10 = 3.5

Julie has 5 yards of fabric to make doll outfits. Each outfit requires 3/4 yards of fabric. What is the maximum number of outfits Julie can make with her fabric?

Answers

Answer:

6

Step-by-step explanation:

well 5 divided by 3/4 is 6.66666666667 which you can say is 6

help! A pack of cinnamon-scented pencils sells for $6.00. What is the sales tax rate if the total cost of the pencils is $6.18?

Answers

Answer

Step-by-ste$6.48- $6.00= $.48

.48÷ 6.0= 0.08

0.08 = 8%

tax rate is 8%

p explanation:

Answer:

3%

Step-by-step explanation:

6.18-6.00 = .18

.18/6.00= .03

.03= 3%

Part A: You have $0.80 in your backpack in dimes and quarters. Let x represent the number of dimes and y represent the number of quarters. Write an equation in standard form that represents the situation
____x+____ y=____

Part B: You have $0.80 in your backpack in dimes and quarters. Let x represent the number of dimes and y represent the number of quarters. If you have 2 quarters in your backpack, how many dimes do you have?
______


Answers

Part A: 0.10x + 0.25 = 0.80 (dimes are 10 cents or 0.10 dollars, quarters are 0.25 dollars)
Part B: Plug in what you DO know and solve the one you DON’T:
0.10x + 0.25(2) = 0.80
0.10x + 0.50 = 0.80. Subtract 0.50 from both sides:
0.10x = 0.30 (Divide both sides by 0.10)
x = 3
Therefore you have 3 dimes

the volume of a recta

Answers

There is no graph to find the volume

PLEASE HELP!!!!
Find the length of the missing side. The triangle is not drawn to scale.
100
10
48

Answers

Answer:

10

Step-by-step explanation:

pythagorean theorem

take the sum of the square of each leg and set it equal to the square of the hypotenuse

8² + 6² = x²

64 + 36 = x²

x² = 100

x = [tex]\sqrt{100}[/tex] or 10

Answer:

B.10 units

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem which states that a^2+b^2=c^2

Plug in what we know....

8^2+6^2=c^2

64+36=c^2

c=sqrt(100)

c=10 units or B

Please help me if you guys can, it would be very appreciated!!<3

Answers

Since you already have the scale factor, just plug it in and find all sides of the triangle and and use the triangle area theorem

HELP MEEEE!!!!!!!!!!!!!!!!!!!! I will give brainliest to whoever answers first.

Answers

A. Multiply the 2 numbers.
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