A nail has a circular head with a diameter of 0.40 centimeters.
What is the area of the nail's head, rounded to the nearest hundredth of a square centimeter?

Answers

Answer 1
π r^2 is the formula for area of a circle. So take half the diameter, which is 0.20, and plug that in for r. Your answer will be 0.4π or ≈1.2566

Related Questions

Which of the following is not a solution to the inequality
4x + 1 ≤ 18
A. 4
B. 4.23
C. 4.25
D. 4.27

Answers

Answer: A   4

step by step explmationn

Answer:

C. 4.25

Step-by-step explanation:

You would want to subtract the one so you could subtract it to 18 then divide 4 by 17 to get 4.25

Natalee wanted to demonstrate the volume of a square pyramid. To do this, she took a hollowed out pyramid that has a base of 25 square inches and a height of 5 inches and filled it with water. She then dumped this water into a hollowed out cube that has a volume of 125 cubic inches. Enter the amount of times that she will need to dump the water from the pyramid into the cube to completely fill the cube

Answers

Answer:

The answer is below

Step-by-step explanation:

Natalee transferred water from a square pyramid to a cube. To calculate how many times she will need to dump the water from the pyramid into the cube to completely fill the cube, we divide the volume of the cube by the volume of the square pyramid. Hence:

Number of times = volume of cube / volume of pyramid

The perimeter of the pyramid base = 25 in, hence the length of one side of the bae = 25 / 4 = 6.25 in

Volume of square pyramid  = base² × (height / 3) = (6.25 in)² * (5 in / 3) = 65.1 in³

Volume of cube = 125 in³

Number of times = 125 in³ / 65.1 in³ = 1.92

The amount of times that she will need to dump the water from the pyramid into the cube to completely fill the cube is 1.92.

What is volume?

The capacity of a container of any shape is called the volume.

Natalee transferred water from a square pyramid to a cube. Then,

Given is the perimeter of the pyramid base = 25 in

So, the length of one side of the base b= 25 / 4 = 6.25 in

Volume of square pyramid  = b² × (h/ 3) = (6.25 in)² * (5 in / 3) = 65.1 in³

Volume of cube = 125 in³

Number of times = volume of cube / volume of pyramid

Number of times = 125 in³ / 65.1 in³ = 1.92

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Evaluate the following for when x=5

4(x-2)(x-3)+7(x-2)(x-5)-6(x-3)(x-5)

Answers

Answer:5x^(2)-21x+4

Step-by-step explanation:

evaluate the expression for n=6 (your answer will be a number)
3n - 3

Answers

Answer:

15

Step-by-step explanation:

3(6) - 3 =

18 - 3 =

15

the answer should be 15

5 times 5 times 1 times 1 times 1 times 2

Answers

Answer:

50

Step-by-step explanation:

5 x 5 = 25

25 x 1 x 1 x 1 = 25

25 x 2 = 50

hope this helps

<3

: )

Answer:

50

Step-by-step explanation:

Sean is buying 9/16
pound of tea at a tea shop. The cost of tea is $24 per pound.

Answers

The cost of 9/16 pounds of tea is $13.50.

How to determine the cost of 9/16 pounds of tea

In order to determine the cost of 9/16 pounds of tea, the cost of a pound of tea would be multiplied by 9/16 pounds.

Cost of 9/16 pounds of tea = 9/16 x 24

= $216/16

= $13.50

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A password is 4 characters long, consisting of 2 letters and 2 numbers. The password must begin and end with a
letter. If numbers can be repeated but letters cannot, how many possibilities are there?
a. 65,000
b. 60,840
c. 58,500
d. 52,650

Answers

Answer:

a.

65,000

Step-by-step explanation:

There are 65000 possibilities of 4 character-password

What is a password?

A password is a security code that is used for verifying identities

The password has 4 characters.

The password must begin and end with a letter.

So the selections are:

First = 26

Last = 25

The other selections are:

Second = 10 digits

Third = 10 digits

So, the number of password is:

Password = 26 * 10 * 10 * 25

Evaluate

Password = 65000

Hence, there are 65000 possibilities of 4 character-password

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What is the value of x in the solution to this system of equations?
y+2x=-1
Y=2x-19​

Answers

Answer:

My teacher told be that x will mean 6 and she also said anyletter will equel 6 in an eqaution HOPE THIS HELPS :D

Step-by-step explanation:

can someone please help me!!

Answers

Answer:

The probability is

Step-by-step explanation:

11%

(11y + 19) °
8x °
96 °

Answers

Answer:

lol 96

Step-by-step explanation:

y=4x+7 in standerd form

Answers

Answer: Y=4x+7 in standard form is, 4x + 7y = 7

Step-by-step explanation:

SO anyways :))))
Thanks and please make sure you comment only if you are pretty sure you are right! Thanks

Answers

Answer:

1 / 8², B

Step-by-step explanation:

8 / 8³

8³ = 8*8*8

So, the equation can also be written as:

8 / 8*8*8

divide the numerator and denominator by 8.

1 / 8*8

This is equal to:

1 / 8²

The answer is B.

help 6th grade math i will give brainliest

Answers

exponent: 3^5
standard form: 243

How far will a race car going 120 miles per hour travel in 3 hours

Answers

Answer:

360 miles

Step-by-step explanation:

to find the distance, multiply speed and time

120*3= 360

Can I have brainliest plz

The legs of a right triangle measure 8 cm and 6 cm respectively. How long is the longest side of the triangle?

a.12
b.10
c.14
d.11

Answers

Answer:

b. 10

Step-by-step explanation:

Based on the Pythagoras Theorem, the longest side of a right-angled triangle is: [tex]\sqrt{a^{2}+b^{2} }[/tex] where a and b are the legs of the triangle.

Longest side of triangle = [tex]\sqrt{8^{2}+6^{2}}[/tex]

                                        = [tex]\sqrt{64+36}[/tex]

                                        = [tex]\sqrt{100}[/tex]

                                        = 10

pls help easy!!
There are 15 pieces of fruit in a bowl and 6 of them are apples. What percentage of the pieces of fruit in the bowl are apple?
-0.06%
-0.4%
-6%
-40%

Answers

Answer:

40%

Step-by-step explanation:

brainliest please

Answer:

D: 40%

Step-by-step explanation:

total: 15

apples: 6

6 out of the 15 fruits are apples

6/15 = 40%

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Write the equation of the line that passes through the points (-4, 7) and (-6, -4).

Answers

Answer:

y = 11/2x + 29

Step-by-step explanation:

the slope goes up 11 and over 2 and the line crosses the y-axis at 29 so thats the y-intercept

A cookie recipe uses
cup of sugar for 2 dozen cookies. How many cookies can be made with 1 cup of sugar?
O A. 36
OB. 12
O C. 48
D. 24
PLSSS HURRY

Answers

D 21 a dozen is twelve so 2 dozens to a cup would be 21

What is the value of s ?
Please help
No guessing

Answers

Answer:

s = 17

Step-by-step explanation:

use Pythagorean theorem a² + b² = c²

where a = 8

           b = 15

           c = s (which is unknown)

plugin values into the formula:

a² + b² = c²

8² + 15² = s²

s = √(64 + 225)

s = √289

s = 17

The bakers at the healthy bakery can make 160 bagels in 10 hours how many bagels contain make in 16 hours

Answers

Answer:

256

Step-by-step explanation:

divide 160 by 10 to get the bagels per hour then times 16

Write down the equation of a line whose slope is -7 and crosses the y-axis at 7. Express in slope-intercept form.

Answers

Answer:

y= -7x+7

Step-by-step explanation:

y= mx+b

y= slope x+ y intercept

The equation of the line having the slope -7 and y-intercept  is 7 is: y = -7x + 7

What is the equation of line?

A straight line's equation is a relationship between its x and y coordinates, and it is written as y = mx + c, where m is the line's slope and c is its y-intercept.

We are given that the slope m is -7,

and the line crosses the y-axis at 7.

so the value of c = 7

Therefore, we can substitute these values into the slope-intercept form to get:

y = -7x + 7

So the equation of the line is y = -7x + 7.

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A laundry basket has 24 t-shirts in it. Four are navy, 12 are red, and the
remaining are white.

What is the probability of not selecting a white shirt?

Answers

Answer:

The probability is 1/2. Since there are 24 T-shirts in total and 12 is half of 24, the probability is 1/2.

Step-by-step explanation:

draw a line representing the rise and a line representing the run of the line. State the slope of the line in simplest form​

Answers

Answer:

Slope is 3/1

Rise is 3

run is 1

hope this helps

help me plssssssssssssssssssss

Answers

Answer:

D

Step-by-step explanation:

It says she has a maximum, that means she cannot go pass the amount ($50)

It costs $7 to get in so you have to take that from what she has ($50)

so you need to have the opposite which would be to add on the left to spend

HELP ASAP !! & GIVING OUT BRANLIEST
Select the correct answer.
Maggie is training for a bicycle trip across her home state. She recorded the approximate number of miles she biked during 10 days of training. The graph shows the data that she recorded as a function of the distance biked over time.
Which function best models the data set?

Answers

Answer:

C

Step-by-step explanation:

I got it right

The function that best models the data set is y = 3x + 11

What is the slope of the line?

"The slope of the line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is,

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]"

What is the equation of the line passing through two points?

"The equation of the line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is, [tex]\frac{y-y_1}{y_2-y_1} =\frac{x-x_1}{x_2-x_1}[/tex] "

For given question,

If we draw the line of best fit, then the the line would pass through points (3, 20) and (8, 35)

Let [tex](x_1,y_1)=(3, 20),(x_2,y_2)=(8, 35)[/tex]

Then the equation of the line would be,

[tex]\Rightarrow \frac{y-y_1}{y_2-y_1} =\frac{x-x_1}{x_2-x_1} \\\\ \Rightarrow \frac{y-20}{35-20} =\frac{x-3}{8-3} \\\\ \Rightarrow \frac{y-20}{15} =\frac{x-3}{5} \\\\ \Rightarrow y-20=15\times \frac{x-3}{5}\\\\ \Rightarrow y-20=3(x-3)\\\\ \Rightarrow y-20=3x-9\\\\ \Rightarrow y=3x+11[/tex]

Therefore, the function that best models the data set is y = 3x + 11

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Which function has an inverse that is a function?
b(x) = x2 + 3
d(x) = –9
m(x) = –7x
p(x) = |x|

Answers

Answer:

All but the second one

Step-by-step explanation:

Find the inverse of each function:

b(x)=x^2+3

y=x^2+3

x=y^2+3

x-3=y^2

sqrt(x-3)=y

This inverse function is a function

d(x)=-9

y=-9

This doesn't have an inverse function

m(x)=-7x

y=-7x

x=-7y

-1/7x=y

This inverse function is a function

p(x)=|x|

y=|x|

x=|y|

x=y

This inverse function is a function

Therefore, all but the second function have inverses that are functions

Answer:

All but the second one have inverse functions

Step-by-step explanation:

Brainliest pls pls pls pls

Please help meeeeee!!!!​

Answers

Answer:

x = 30

Step-by-step explanation:

As we know, the angles inside of a triangle added together all equal 180°, so you would combine 3x + 2x + x = 180°. And then from there you can solve.

3x + 2x + x = 180°

[Combine like terms] 6x = 180°

[Divide 6 from both sides of the equal sign] x = 30°

Hope this helps!!

patty had 51 cent until she spent 5 nickles.how much money does patty have now?​

Answers

Answer:

26 cents

Step-by-step explanation:

5×5=25

51-25=26

Hello,

Let’s solve this! Nickels are worth 5¢ each, and a penny is 1¢.

Step-by-step:

Multiple the numbers

5 * 5

Subtract the total

51 - 25

Answer: 26

Hope this helps!

How do you write 94.44% as a decimal

Answers

Answer:

Step-by-step explanation:

an idiot calls someone "idiot" LOL.

Answer:

0.9444

Step-by-step explanation:

all I've done is i took the decimal point and placed it next to the 9 and added a zero on the left side of the decimal point .i hope this helped.

PLS HELP. Which of the following describes a way to graph the function?

Answers

Answer:

The graph of the function is the set of all points (x,y) in the plane that satisfies the equation y=f(x) y = f ( x ) . ... A vertical line includes all points with a particular x value. The y value of a point where a vertical line intersects a graph represents an output for that input x value.

poggers poggers poggers
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