A clock has a second hand that is 8 inches in length. What is the linear velocity of the second hand?

Answers

Answer 1

Answer:

6π inches/min

Step-by-step explanation:

he tip of the second hand makes a complete circle in

60 sec, or  1min

The length of this circle is the circumference, C

C=2πr

Given: r=8 in

C= 2π×8 =16π

C= 16π

The linear velocity is 6π/1 = 6π inches/min


Related Questions

Please help ASAP really desperate

Answers

Answer:

m= 3/7

Step-by-step explanation:

I'm assuming the question is solve for the variable, m.

First step is to isolate the variable

In other words, let's move everything (but m) from the left side to the right side

To move 7 to the right side, we can either divide both sides by 7 or multiply both sides by 1/7 (both equal the same thing)

7/3m × 1/7 = 1 × 1/7

1/3m = 1/7

Now we must move 1/3 from the left to the right side

We can use the reciprocal, 3/1, to do this

1/3m × 3/1 = 1/7 × 3/1

m = 3/7

Simplify (g^6)^10 how do I do this? Can someone help

Answers

Answer:

g⁶⁰

Step-by-step explanation:

(g⁶) ¹⁰

When you raise an exponent to another exponent, you multiply the exponents.

6 × 10 = 60

(g⁶)¹⁰ = g⁶⁰

Answer:

g^60

Step-by-step explanation:

multiply the exponents 6 and 10 and it will be 60 like this g^60 I hope this  helped you :) Im sorry if it was wrong

A clap of thunder is recorded at two weather stations that are 2 miles apart. Station A recorded the sound 3 seconds before station B. Since 1 mile is 5,280 feet and assuming sound travels at 1,100 feet per second, which equation can be used to determine the location of the thunder?

Answers

Answer:

C.

was right on edge 2021

The correct option is (C)

What is equation?

An equation is a mathematical expression that contains an equals symbol.

Given:

Sound travels= 1100 feet per second

Stations are 2 miles apart from each other, i.e., 10560 feet.

Using,

x²/a² + y²/b²=1

So, 2c= 10560

c=5280

and, 2c-2a +3300 = 10560

2a= 3300

a= 1650

So, b²= c² - a²= 25155900

x²/2722500 + y²/25155900=1

Learn more about equation here:

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PLEASE HELP ME WITH THIS FAST!!!!

Answers

Answer:

Step-by-step explanation:

Second bullet point

The first one is correct
- Ac=de, x=5

Because 4x-2=22.
X=5

Helppppppppppppppppp plzzzzzzzzzzzzzzzzzzzzzz

Answers

A it’s only right they is no way you can get more then A and it’s rounded

Xiang is a teacher who bought a $2350 laptop for school use. The laptop is an allowable
deduction with a rate of depreciation of 33% p.a. of the current value. How much can be
claimed for depreciation in the:

Answers

Answer:

b

Step-by-step explanation:

Find the volume of a rectangular pyramid, with a height of 12 cm, length of 8 cm, and a width of 6cm.

Answers

Answer:

192 cm^3

Step-by-step explanation:

Volume equals Area of the base times the height divided by three.

V = length * width * height

                      3

V = 8 * 6 * 12   =   192 cm^3

           3

How much more pizza is in 12-inch diameter pizza than in a 10-inch diameter pizza?

Answers

Answer:

I  hope this helps

Step-by-step explanation:

Diameter (in)      Area (sq.)     Times bigger than 10 in

10                           79                              1

12                            113                             1.4

PLEASE HELP ME ASAP ?!?!
Quintero said that 10, 12, 15 forms a right triangle. How can you check if the he is right,
explain and show your prove.

Answers

Answer:

Step-by-step explanation:

to prove that, that is a right triangle you use the theorem that the two shorter sides square added equals the longest side squared

so if its a right triangle then 10^2+12^2 will equal 15^2

10^2+12^2=244

15^2=225

225 does not equal 224 so that is not a right angle

*PLEASE ANSWER!! THANK YOU!!*

Gerry ran 3/8 of a mile on Monday. He ran 5/8 of a mile on Tuesday. He ran ½ mile on Wednesday. How many miles did Gerry run in all?

a.) 4 miles

2.) 7/8 of a mile

3.) 1 ½ miles

Answers

Answer:

3.) 1  1/2 miles

Step-by-step explanation:

3/8 + 5/8 + 1/2 = 1  1/2

Answer:

C) 1 ½ miles

Step-by-step explanation:

Solve for c:



c + (-20) = -12

Answers

Answer:

8

Step-by-step explanation:

Isolate and solve for C

[tex]c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8[/tex]

Answer:

C = 8

Step-by-step explanation:

By reversing the equation, you can get the result.

-12 + 20 = ?

-12 + 20 = 8

Proofcheck:

8 + (-20) = ?

8 + (-20) = -12

Find the missing value to the nearest hundredth cos=4/38

Answers

Answer:

83.96 (approximately)

Step-by-step explanation:

I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.

It should look like:

[tex]cos^{-1}(\frac{4}{38})[/tex], which is approximately 83.96.

Hopefully this is right, if not, please let me know. Good luck.

Please help!!!!!!!!!!!!!!

Answers

Answer:

A=-4

B=4

C=-4

D=4

Step-by-step explanation:

I'm struggling a little bit can someone help?? A cell phone costs $850. You have a coupon for 15% off. How much will you pay for the phone? Include 13% tax

Answers

Answer:

722.50

Step-by-step explanation:

not exactly sure its right but i did use a calculator so I'm pretty sure it's right

Given:

850 dollars is the original price of the cell phone. (discount) coupon for 15% offtax is 13 percent.

------------------------------------------------------------------

original price - discount = sales price

850 - (850 x [tex]\frac{15}{100}[/tex] ) = sales price

ANSWER: $722.50 or [tex]\frac{1445}{2}[/tex]

Include 13% tax... price + sales tax = total price of the phone

722.50 + (722.50 x [tex]\frac{13}{100}[/tex] ) = ?

ANSWER:  The final price of the cellphone is $816.43

What is the degree of -8mn^2

Answers

Answer: 2

Step-by-step explanation:

To find the degree, use the exponent. An exponent of two means a degree of two, like an exponent of four means a degree of four

hurry please!

Choose the statement that is not true.
A. The rational number system is closed under addition, but not multiplication.
B. An irrational number cannot be a repeating decimal.
C. When you multiply a rational number by an irrational number, the product will always be irrational.
D. Other than perfect squares, all square roots are irrational.

Answers

Answer:

A. the rational number system is closed under addition, but not multiplication

Step-by-step explanation:

may i pleaseee have brainliest

I need help with this question ​

Answers

I disagree because the line intersects at (0, 5) in the y-axis.

I NEED HELP ASAP!!! I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!!!

Answers

Answer:

v=18

u=4

Step-by-step explanation:

v/3=6

v=18

2u+2=5u-10

3u=12

u=4

Answer:

Step-by-step explanation:

Find the missing value so that the line passing through the points has the given slope.
(7, 1) and (x, 4); m= 3/4

Answers

Answer:

x = 11

Step-by-step explanation:

( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )

( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )

m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

~~~~~~~~~

(7, 1)

(x, 4)

m = [tex]\frac{3}{4}[/tex]

[tex]\frac{4-1}{x-7}[/tex] = [tex]\frac{3}{4}[/tex]

x - 7 = 4

x = 11

Jessica estimated that her family used 30% more water this month compared to last month . they used 12000 gallons of water last month , how much water did they use this month

Answers

Answer:

15,600 Gallons

Step-by-step explanation:

The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Last used of water = 12000

30% of 12000 = (30/100)12000 = 3600

Water used in the current year = 12000 + 3600 = 15600 gallons.

Hence "The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water".

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Please help and explain thanks I’ll give brainiest! !!!???!!!!???
Thanjs

Answers

2 = -x - 8 equation
x = -10

A. y+ 1 = 2(x-1)
B. y-1 = 2(x+1)
C. y + 1 = -2(x-1)
D. y-1 = -2(x + 1)

PLS HELP ASAP WILL MARK U BRAIN-LIST THANKS

Answers

First you need to rearrange the equations.

A. will turn into Y=2x-3
B. will turn into Y= 2x+3
C. will turn into Y=-2x+1
D. will turn into Y= -2x-1

The equation that fits that graph is letter A.

The reason is because the Y intercept or where the line crosses on the y axis is -3 which you can see fits the first equation.
You also know because the slope of the first equation is 2, and -3 plus 2 is -1 which is the point they marked for you (1,-1)
Hope this helps :)

Help, I need this soon!

Answers

Answer:

1a. x=2 1b. x= -1

Step-by-step explanation:

Find the area of the trapezoid by decomposing it into other shapes

Answers

Answer:

60 cm ( squared )

Step-by-step explanation:

you can find the area of the trapezoid ( by decomposing it into other shapes ) by separating two triangles, and using the formula to find the area of triangles, which is A= 1/2 ( b x h ) and add the answer to those together ( 16 cm squared and 4 cm squared ), and after that, you can find the area to the rectangle by multiplying the l x w, which is 10 x 4 ( after separating the triangles.). That equals 40, and when you add them all together ( 16 + 4 + 40 ) it equals 60 cm (squared).

Can someone show me how to solve this
(-12)+7

Answers

Answer:

-5

Step-by-step explanation:

negative 12 + positive 7 = 5

so....

it is basically -12 + 7

Pleaseee helpp meeee

Answers

Answer:

7

Step-by-step explanation:

The new expression would be: 2(10) / 5 + 3. Using PEMDAS, first multiply 2(10) to get 20. Now you get: 20 / 5 + 3. Using PEMDAS, now divide 20 / 5 to get 4. The new expression is 4 + 3. Now, add to get 7 as your answer.

Hope it helps!

Answer: 7

How to:
Plug in values
Use PEMDAS

rewrite 3^-4 without negative exponents

Answers

Answer:

[tex]\frac{1}{3^{4} }[/tex]

Step-by-step explanation:

You can rewrite 3⁻⁴ as 1/(3⁴) or 1/81 without negative exponents.

What are the laws of the exponents?

The product rule is an exponent rule that states that when you multiply similar bases, the add exponents.

For example, (a²)·(a³) = a²⁺³ = a⁵

You can rewrite 3⁻⁴ as 1/(3⁴) because any number raised to a negative exponent is equal to 1 divided by that number raised to the opposite positive exponent.

So 3⁻⁴ = 1/(3⁴) = 1/81

Another way, you can think of it as "flipping" the base, i.e. (1/3)⁴ = 1/81

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PLease help with this i will give brainliest

Answers

Answer:

Probably -3

Step-by-step explanation:

If it's going by 3s, then it should be -3.

Answer:

-3

Step-by-step explanation:

A city receives 4 inches of snowfall every 6 hours. Write and graph a function that describes the relationship. How long does it take to receive 1
foot of snow? I just need the y= blank part I’m really in need of this for a project thanks

Answers

Answer:

y= 2/3x

Step-by-step explanation:

Hi, the slope-intercept would be y= 2/3x. This is because the city receives 4 inches of snow every 6 hours. 4/6 simplified is 2/3.

Mary drew 79 diagonals in a convex polygon. What is the fewest number of sides her polygon might have had?

Answers

It would probably be 6
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