My question is regarding cylinders plz.. Here it goes - a student winds a strip of paper eight times round a cylindrical pencil of diameter 7mm. Use the value 22/7 for π to find the length of the paper (ignore the thickness of the paper) pls I don't understand this .. Pls help

Answers

Answer 1

Answer:

176cm

Step-by-step explanation:

Step 1

We find the circumference of the cylinder

The formula for the Circumference = 2πr or πD

π = 22/7

Hence;

22/7 × 7

= 22

Since the strip of paper eight times round a cylindrical pencil of diameter 7mm, the length of the paper is calculated as: 22 × 8

= 176cm


Related Questions

John is going to the store. His house is located 3 miles south and 4 miles east from the
store, as shown below. What is the shortest distance from his house to the store? Explain
your reasoning.
1
3 miles
HA
BE
4 miles

Answers

Answer:

im so sorry but i need to finish my challenge

Step-by-step explanation:

How to write the question using the follow sentence#1


Will mark Brainliest

Answers

Answer:

7 times 4 = 28

28 + 6 = 34

Step-by-step explanation:

2. Are the triangles shown below similar
not? How do you know? (Explain your reasoning)

Answers

Answer:

yes the both have all the same angles

Step-by-step explanation:

180-90=90

90-35=55

these triangles are not similar because although they are the same shape, they are not the same size.

Need the answer pls!!!!!

Answers

The answer is -3

......

Answer: the y-intercept would be -3

Your favorite shoes were on sale for 35% off. The shoes have a regular price of $160. Sales tax was 4%. What is the total price paid for the shoes including the discount and tax?

Answers

Answer:

108.16

Step-by-step explanation:

Find the value of w°

Answers

Answer:

w = 59

Step-by-step explanation:

90 + 31 +w = 180

121 +w = 180

w = 180 - 121

w = 59

Colin invests £1100 into his bank account. He receives 5% per year simple interest. How much will Colin have after 6 years?

Answers

Answer:

£1430

Step-by-step explanation:

Given data

Principal =£1100

Rate= 5%

time = 6 years

The simple interest formula is

A=P(1+rt)

substitute

A=1100(1+0.05*6)

A=1100(1+0.3)

A=1100(1.3)

A=1100*1.3

A=£1430

Hence the balance is £1430

14) Find the slope of the line containing the points (5, 3) and (-7, 2).
A. −52
B. 112
C. -4
D. 12

Answers

Answer:

1/12

Step-by-step explanation:

Step one:

given data

the line containing the points (5, 3) and (-7, 2).

x1= 5

y1= 3

x2= -7

y2=2

Step two:

The slope is given as

Slope= y2-y1/x2-x1

substitute

Slope= 2-3/-7-5

Slope= -1/-12

Slope = 1/12

mark takes a 40 question test for which he receives 2.5 for each correct answer and losses 1 point for each wrong answer. If mark answers all the questions and gets a grade of 65% of the test, what percent of the questions did he answer correctly?

Answers

Answer:

he answered 26% correctly

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

the difference of a number t and 9

t-9 or 9-t

Answers

T-9 the Clue is in the Problem I hope this helps

how many subsset can be obtained from the set A={ m, a ,t ,h}​

Answers

Answer:

Step-by-step explanation:

{m}, {a} , {t} ,{h} ,{m,a}, {m,t} ,{m,h} ,{a,t} ,{a,h} ,{t,h} ,{m,a,t} ,{m,a,h} ,{m,t,h} ,{a,t,h} ,{ m,a,t,h} , {} are the subsets of the given question.

If you found my answer useful then please mark me brainliest.

what is 5x – 8x + 2 + 5=

Answers

Answer: -3x+7

Step-by-step explanation: Good luck! :D

Answer:

-3x+7

Step-by-step explanation:

(5x-8x)+(2+5) Like terms together

(-3)x+7 Combine within each group

-3x+7 Simplify the signs in the product

-3x+7 Is your answer

Hope that helps :)

Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and shipping, to purchase 6.3 total pounds of nuts​

Answers

the total price would be 53.72$ nuts .com


Find the rate of discount for a pair of pants that cost $65 and are on sale for $42.25.

Answers

Answer:

35%

Step-by-step explanation:

42.25÷65 = .65

1-.65 = .35

1) Ben has 15 coins, all dimes and quarters, worth $2.55. How
many dimes and how many quarters does Ben have?

Answers

Answer:

Ben has 8 dimes and 7 quarters.

Step-by-step explanation:

Given that:

Number of coins = 15

Worth of coins = $2.55 = 2.55 * 100 = 255 cents

Let,

x be the number of dimes

y be the number of quarters

According to given statement,

x+y=15     Eqn 1

10x+25y=255     Eqn 2

Multiplying Eqn 1 by 10

10(x+y=15)

10x+10y=150     Eqn 3

Subtracting Eqn 3 from Eqn 2

(10x+25y)-(10x+10y) = 255 - 150

10x+25y-10x-10y=105

15y=105

Dividing both sides by 15

[tex]\frac{15y}{15}=\frac{105}{15}\\y=7\\[/tex]

Putting y=7 in Eqn 1

x+7=15

x=8

Hence,

Ben has 8 dimes and 7 quarters.

Please hurry it’s 100 points

Answers

Answer:

I Believe B

Step-by-step explanation:

Hope this helps:)

Answer:

B

Step-by-step explanation:

Its B

how many feet tall is the building ​

Answers

Answer:

Height of the building = 77 ft.

Step-by-step explanation:

Let the height of the building (AB) = h feet

It's given that height of a woman (ED) = 5 feet 3 inches

                                                              ≈ 5 feet + [tex]\frac{3}{12}[/tex] ft

                                                              ≈ 5.25 ft

Length of the shadow (BC) of the building = 55 ft

Length of the shadow (DC) of the woman = 45 in ≈ 3.75 ft

Since, both the triangles ABC and EDC are similar, their corresponding sides will be proportional.

By the property of similar triangles,

[tex]\frac{AB}{ED}= \frac{BC}{DC}[/tex]

[tex]\frac{h}{5.25}=\frac{55}{3.75}[/tex]

h = [tex]\frac{55\times 5.25}{3.75}[/tex]

h = 77 ft

Therefore, height of the building will be 77 ft.

Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1 25 per ride. Which function can be used to determine how much money he has left over after x rides?​

Answers

Answer:

80m - (12+4) = x

Step-by-step explanation:

Hope this helps! I mean its self explanatory

Answer:

$38.75

Step-by-step explanation:

We can add up the amount he spent before he started riding and we'll get $16. Subtract 16 from 80 which is 64. $64 dollars divided by $1.25 would be 51.2. We round down because he can't ride more then 50 rides. He would be able to ride 51 rides with the money he has. Let's say he rode 20 rides and then left the fair. We would subtract 20 from 51 and get 31. After that we would multiply 31 by 1.25 and get $38.75. So he would have $38.75 dollars after he left the fair.

Find the measure of each angle indicated

Answers

D is the correct answer

Someone please help me

Answers

Answer:

Hundreds is 8, tenths is 5, and thousandths is 1!

Answer:

Hundreds: 8

Tenths: 5

Thousandths: 1

Find each function value f(-7) if f(x) = 3x + 6

Answers

Answer:

-15

Step-by-step explanation:

3*-7=-21+6=-15

Answer:

Step-by-step explanation:

first multiply -7 and 3 since -7 is the element of the function (x)

then you should get (-21)

now add 6 and you answer should be (-15)

JOE'S MOUNTAIN BIKE WEIGHS 7 POUNDS MORE THAN ANDY'S. IF THEIR BIKES WEIGH 45 POUNDS ALTOGETHER, HOW MUCH DOES JOE'S BIKE WEIGH?

Answers

Answer:

26

Step-by-step explanation:

45-7=38,

38/2= 19,

19+7=26

factor the expression -20x - 15

Answers

the answer is 300. I hope that helped!

Answer:

−5(4x+3)

Step-by-step explanation:

pls help i will give brainliest

Answers

Answer:

( -4 , 13 )

Step-by-step explanation:

2 ( -4 ) + ( 13 ) = 5

5 = 5

3 ( 13 ) = 15 - 6 ( -4 )

39 = 39

( -4 , 13 )

2x² + 3 × (-x²) + 6x + 2

Answers

Answer:

1x²+5 x 6x

Step-by-step explanation:

Consider this quadratic equation:
6x2+9x-10=0
Comparing it to the standard form, name a, b, and c
a-
b=
C=

Answers

a = 6
b = 9
c = -10
hope this helps you!

solve each equation. 7(x+4)-6(x+3)=x+5

Answers

Answer:

7(x+4)-6(x+3)=x+5

or , 7x + 28 - ( 6x + 18 ) = x + 5

or , 7x + 28 - 6x - 18 = x + 5

or , x + 10 = x + 5  

The equation is incorrect !!

Answer:

7(x+4)-6(x+3)=x+5

We simplify the equation to the form, which is simple to understand
7(x+4)-6(x+3)=x+5

Reorder the terms in parentheses
+(+7x+28)-6*(x+3)=x+5

Remove unnecessary parentheses
+7x+28-6+*(+x+3+)=+x+5

Reorder the terms in parentheses
+7x+28+(-6x-18)=x+5

Remove unnecessary parentheses
+7x+28-6x-18=+x+5

We move all terms containing x to the left and all other terms to the right.
+7x-6x-1x=+5-28+18

We simplify left and right side of the equation.
0x=-5

0=-5

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

(hope that helps you out :)

ekusysnyeyuejteyjdjgdyjd​

Answers

Answer:

a. < less than

b. > greater than

c. > greater than

d. > greater than

e. < less than

Plzzzzz give me Brainliest!  



Find the inequality represented by the graph

Answers

Answer:y<3/4x

Step-by-step explanation:

Its proportional

y intercept is 0 which means nothing

slope is 3/4

so

y<3/4x

BTW dotted lines are < not ≤

Can y'all help meh please!

Answers

Answer:

__________________the answer is C _____________

Answer:

C.

Step-by-step explanation:

The y intercept is when x=0

so (0, -7) is the y-intercept

slope is found when you subtract y-y1/x-x1

-10- (-7) / 9-0

-3/9

simplified is -1/3

slope is -1/3 and y intercept is (0, -7)

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