10. True or false: pi is the circumference of a circle with a radius of 1

Answers

Answer 1

Answer:

It is false.

Step-by-step explanation:

When a circle's diameter is 1, its circumference is π. When a circle's radius is 1—called a unit circle—its circumference is 2π.


Related Questions

The formula for simple interest is where I is the amount you will pay in interest, r is the rate at which interest will accrue, P is the principal (amount borrowed), and m is the number of times the interest is applied.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

The simple interest formula (I) is the product of the principal, interest rate and the number of times interest is applied

Mathematically,

Simple interest (I) = principal(p) * rate(R) * time (t)

For instance, if a principal amount of $200 is borrowed at a rate of 5% per annum for 3 years. The simple interest on the amount borrowed will be :

Simple interest = $200 * 5% * 3

Simple Interest = $200 * 0.05 * 3

Simple Interest = $30

Karen owns a seafood restaurant. She orders trout from an online retailer. Each pound of trout costs $30 and the company charges a $2 fee for shipping the order. However, if Karen orders 10 or more pounds, the Trout costs only &24 per pound, but the shipping fee is $6. Which piecewise function models the cost of x pounds of Trout?

Answers

Let, number of pounds of trout is x and their price is C.

For, x < 10 :

Price per pound is 30 .

C = 30x + 2     ....1 )

For, x ≥ 10 :

Price per pound is 24 .

C = 24x + 6     ....2 )

Therefore, total cost is :

[tex]C =\$ \left \{ {{30x+2 \ \ \ \ x<10} \atop {24x +6 \ \ \ \ x \ge 10}} \right.[/tex]

Hence, this is the required solution.

Answer:

30x+2, 0<x<10

24x+6, x≥10

Step-by-step explanation:

2) A youth ice hockey game has 3 periods that are each 20 minutes long. Colin plays 12 minutes each period. Which ratio shows Colin's playing time compared to the total number of minutes of playing time possible?

Answers

Its D or A But im pretty sure its A! Hope you do Great!

Let me know if its wrong!

Please, what is the answer?

Answers

Answer:

bean

Step-by-step explanation:

bean

original price: $60 Markup: 15% Retail Price:??

Answers

It should be $51 dollars

Answer:

51

Step-by-step explanation:

Store A sells 2 packages of straberries for $4.98.
Store B sells 5 packages of strawberries for $11.25.
Which store sells them at a cheaper price per package? How much cheaper is it?

Answers

Answer:

31

Step-by-step explanation:

Answer:

Store B and Its $1.20 cheaper if you buys five packs of strawberries from store B

The equation y minus 5 = 6 (x + 1) is written in point-slope form. What is the equation written in slope-intercept form?
y = 6x + 11
y = 6x – 1
y = 6x – 4
y = 6x + 6

Answers

Answer:

Step-by-step explanation:

y-5=6x+6

y=6x+11

its y= 6x+ 11 the first one

Luke had $14.50. He spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Luke has left?

Answers

Answer: $4.90 left

Step-by-step explanation:

He spent a total of $9.60 at the snack bar and the arcade. You need to just subtract this from the total he had to get $4.90 left.

At a football stadium, 20% of the fans in attendance were teenagers. If there were 130 teenagers at the football stadium, what was the total number of people at the stadium?

Answers

Answer:

there were 650 people total

A healthy human heart beats about 1,533,000 times in a year. A sparrow's heart beats about

241,776,000 times in a year.

About how many times faster does the sparrow's heart beat compared to the human heart?

Estimate using a single digit times a power of 10.

2x108

or about 100 times faster

2x10

=1 x 102

0 2x10°

2x106

= 1 x 103

or about 1,000 times faster

2x108

2x105

=1 103

or about 1,000 times faster

2x109

2x105

=1 104

or about 10,000 times faster

Answers

Answer:

About 100 times faster

=1 x 10²

Step-by-step explanation:

Estimate using a single digit times a power of 10.

We approximate to the nearest whole number

A healthy human heart beats about 1,533,000 times in a year.

= 1.533 × 10⁶

As a single digit = 2.0 × 10⁶

A sparrow's heart beats about

241,776,000 times in a year.

= 2.41776 × 10⁸

As a single digit = 2 × 10⁸

About how many times faster does the sparrow's heart beat compared to the human heart?

We find the difference in their powers of 10

= ( 10^8 - 6)

= 10²

This means the sparrows heart beats at about

1 × 10² or a 100 times faster

What is the amount of simple interest paid on a principal amount of 3000 at a rate of 7% for a term of 4 years ?

Answers

Answer:

$3,840.00

Step-by-step explanation:

Formula for finding simple interest - P×R×T÷100

3000 ×7 ×4 ÷100

= $3,840.00

3(2x+5)=2(3x+3) solve for x

Answers

6x+15=6x+6
-6 -6. -6
0x= No solution

hhnshsnsnskssjsnnsnsjsjen​

Answers

You need help? Or what

Answer:

ghcfkjdecklijgf

Simplify the number using the imaginary unit i. Please show work. 3 pts
mathematical process and 2pts correct answer

Answers

√-360

= √360 i

= √36 x 10 i
= 6 √10 i

-3x =1
You got to figure out the blank

Answers

Answer:

x=-1/3

Step-by-step explanation:

It could also be - 1/2


The ratio of boys to girls in a group is 2:1. If there are 26 more boys than girls,
work out how many boys there are?


Answers

Answer:

26 girls are there

Step-by-step explanation:

2+1= 3- this is the number of parts the kids are divided into

2 - 1 = 1, in one part there are 26 extra boys

26/1=26- there are 26 boys and girls in one part

since there are an extra 26 boys, the boys have an extra part

boys-2 parts   girls-1 part

since 1 part has 26 kids , and the boys have 2 parts u need to multiply, 2*26=52, 52 boys in the class

since the girls have 1 part and here are 26 kids in one part the # of girls in the class are 26

I need help please
Find the slope

Answers

Answer:

-8/4

Step-by-step explanation:

- 4/1, im not sure if its negative ot not

if a yard is 3 foot long, how many inches are in on yard

Answers

Answer:

36 inches

Step-by-step explanation:

Answer:

36 inches

Step-by-step explanation:

a yard is 3 feet long

there are 12 inches in a foot

so there are 12x3 inches on a foot.

12x3=36 inches

Race day has finally arrived, and the event is about to begin. Each racer must complete one lap on the circular track, which has a radius of 15 meters. You find yourself racing against Ali Al Jouda! He holds the record for the KSAA U14 100m race. You are worried but motivated! According to his record, he runs at an average speed of 8.4 m/s. Your average speed is 7 m/s. How far will you have run by the time Ali crosses the finish line?

Answers

Answer:

78.54 meters

Step-by-step explanation:

circular path

radius = 15 meters

First we have to calculate the circumference of the circular path = 2[tex]\pi r[/tex]

= 2 * [tex]\pi * 15[/tex]

= 94.285 meters ( total distance to be covered )

For Ali running at a speed of 8.4 meters/ seconds

It will take him : ( 94.285 / 8.4 ) seconds

= 11.22 seconds

You running at a speed of 7 meters/seconds

hence at 11.22 seconds when Ali must have crossed the finish line you must have covered ;

(11.22 * 7 ) meters

= 78.54 meters

Hi, I need some help with this pls! I would really appreciate it!

Answers

Answer:

78

Step-by-step explanation:

When traveling the probability of missing two flights in a row is .06. The probability of missing a single flight is .19. Are the two flights independent? ?

Answers

Answer:

Suppose that we have two events, event A and event B.

Where the probability of event A is Pa, and the probability of event B is Pb.

We say that events A and B are independent if the probability of both events happening is equal to the product of the individual probabilities.

Probability of event A and B = Pa*Pb.

In this case we have:

A = missing a single flight

B = missing a single flight.

Pa = 0.19 = Pb.

And we know that the probability of missing two flights is 0.06

Let's see if this is equal to the product of the individual probabilities:

Pa*Pb = 0.19*0.19 = 0.036

So the joint probability is smaller than the one given, this means that the events are not independent and that if you miss one plane, the probability of missing the next one has a small increase.

What Is the y intercept? ​

Answers

Answer:

The y intercept is 1

Step-by-step explanation:

The line crosses the y axis at 1

Answer:

y-intercept = 1

Step-by-step explanation:

The y-intercept is where the line crosses on the y-axis

The whole equation to this problem is (y=[tex]\frac{1}{3}[/tex] + 1)

Elena is feeding her neighbor’s dogs. Each dog gets ⅔ cup of dog food, and she uses 3 ⅓ cups of food. How many dogs does her neighbor have?

Answers

Answer: 5 dogs

Step-by-step explanation:

1. So fist I would convert the three into the fraction witch would become

10/3

2. Then love the problem

Answer:

Her neighbor has 5 dogs

After an earthquake, 3/5 of all claims were paid within a month. Of the remaining claims not paid 2/5 of them were paid within the second month. What fraction of claims were paid in the second month?

Answers

the answer is 6/25 of them were payed in the second month

3 to the power of 2- 2x3 + 5

Answers

Answer:

8

Step-by-step explanation:

Answer:

−2x^3+13

Step-by-step explanation:

Let's simplify step-by-step.

23−2x^3+5

=8+−2x^3+5

Combine Like Terms:

=8+−2x^3+5

=(−2x^3)+(8+5)

=−2x^3+13

Plz plz plz plz plz................

Answers

Answer:

x = 20.5

The way to get 20.5 is by looking at how you got 8, which is simple, you divided 16 by 2. So, we can do the same to the denominator by dividing it by 2 to get x.

Step-by-step explanation:

Hope this helped, my dear! <3

I know someone already answered but answer is 20.5

the sale tax rate on groceries in a certain state is 9% if the price of a grocery item before sales tax is g dollars, which expression represents the cost of the grocery item including sales tax?

Answers

Step-by-step explanation:

g + 0.09g = the final price

multiplying 0.09(9/100) with g will give you the tax

then you add it up to get the final cost.

The expression representing the cost of the grocery item including sales tax is 1.09g.

What is Percentage?

Percentage is a dimensionless number and it has no measurement units.

It is usually denoted by the sign %. Sometimes it has also used in the abbreviated form 'pct.'.

Percentage of a number is the quotient of the number dividing with the whole and then multiply with 100. The reverse calculation can be done to find the number corresponding to a percentage.

Price of a grocery item before sales tax = g dollars

Sales tax rate on groceries = 9%

Amount of sales tax = 9% × g

                                 = (9/100) × g

                                 = 0.09 g

Total cost of the grocery = g + 0.09g

                                         = 1.09g

Hence the total cost of the grocery item including sales tax is 1.09g.

To learn more about Percentage, click on the link given below :

https://brainly.com/question/11256389

#SPJ5

A guitar costs $545.95. If tax is 9.5%, what will the total price of the guitar be?

Answers

Answer: The total price of the guitar will be $597.82

Step-by-step explanation:

Multiply 545.95 by 0.095 and you get 51.87. Add 51.87 to 545.95 and you get 597.82

help btw this is 8 grade stuff idk y it says hight school

Answers

Answer:

integers

Step-by-step explanation:

May i have brainiest

Hi! I believe your answer is the first choice: integers. Integers are like whole numbers, but they also include negative numbers, but still no fractions allowed. I hope this helps you! Good luck and have a great day. ✨❤️

i have not learned a single thing behind this screen and i’m gonna probably fail this test :( please help

Answers

Answer:

74 degrees

Step-by-step explanation:

Answer:

x = 74

Step-by-step explanation:

since the sides are the same lengths they will be the same angles

32 + 2x = 180

2x = 148

x = 74

Check:

32+ 74 + 74 = 180

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