A circle has a radius of 10 feet. find the area of the circle. show your work. use 3.14 for pi
need help plzzz​

Answer:

r≈3.95

Step-by-step explanation:

Using the formula

A=πr^2

Solving for r

r=A

π=49

π≈3.94933

Answer:she is right

Step-by-step explanation:

If you have to make a 48 foot long fence and each post is 6 feet then you would need 8. 6 times 8 =48

Answer:

She will need 9 posts. 1 in each end and 7 in the middle = 2+7=9

Step-by-step explanation:

f(x) = -x² + 3

f(-2) = -(-2)² + 3 = -4 + 3 = -1

Answer → f(-2) = -1

Answer: 24.84%

Step-by-step explanation:

I don't really know how to explain step-by-step from my messy notes

The overall percentage increase of the cost of gasoline during the three-year period is 14.33%.

A percentage is a number or ratio expressed as a fraction of 100. It is generally denoted using the percent sign ''%''.

The given percentage are,

8%, 15%, and 20%.

Now to find the overall average increase we need to find the average percentage for three consecutive years.

overall average = sum of all the percentage/number of percentage

overall average =  8%+15%+ 20%/3

overall average =  43%/3

overall average =  14.33%

Hence,The overall percentage increase of the cost of gasoline during the three-year period is 14.33%.

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[tex]\text{A}_{\square}=\text{a}^2\\\\a\longrightarrow\text{x}+1\\\\\text{A}_{\square}=(\text{x}+1)^2=(\text{x}+1)(\text{x}+1)=\text{x}^2+\text{x}+\text{x}+1=\boxed{\text{x}^2+2\text{x}+1}[/tex]

Answer:

Step-by-step explanation:

11 + (-7)

= 11 - 7

= 4

Answer:

[tex]6x + 7k = p + 2 \: for \: x \\ 6x = p + 2 - 7k \\ 6x = 2p - 7k \\ \frac{6x}{6} = \frac{2p}{6} - \frac{7k}{6} \\ x = 3p - 1 \frac{1}{6} k[/tex]

91 ÷ 8645 = 1 ÷ (8645 ÷ 91) =

9 5 r 0

9 1 | 8 6 4 5

– 8 1 9

_____________

4 5 5

− 4 5 5

0

Thus 91 ÷ 8645 = 1 / 95 r 0

Answer:

d

Step-by-step explanation:

The main objective of timelines is to demonstrate a sequence of actions within a particular time interval. Although timelines cover a great period of time, it is not very detailed. Nevertheless, it is possible to add images, data, or figures.

[tex]\\ \sf\longmapsto 54\%\:of\:270[/tex]

[tex]\\ \sf\longmapsto 27\times \dfrac{54}{100}[/tex]

[tex]\\ \sf\longmapsto \dfrac{1458}{100}[/tex]

[tex]\\ \sf\longmapsto 145.8[/tex]

Answer:

145.8 is the answer

Step-by-step explanation:

Mark it brainlist answer

There are two statements here, showing quantities in real world which are additive inverse of each other :

2. Noa hiked 2 mi up a mountain trail and then hiked 2 mi down the trail.

here, we can depict going up as +2 miles and going down the trail as -2

4. A hot-air balloon ascends 2000 ft from the ground and then descends 2000 ft.

And here we can assume going up the ground aa + 2000 ft and going down aa - 2000 ft .

Answer:

The options are (2) and (4).

Step-by-step explanation:

2. Noa hiked 2 mi up a mountain trail and then hiked 2 mi down the trail.

→ Up 2 mi (+2) and down 2 mi (-2).

4. A hot-air balloon ascends 2000 ft from the ground and then descends 2000 ft.

→ Here they are, ascends 2000 ft (+2000) and descends 2000 ft (-2000).

Answer:

You have the formula wrong.

The volume of a cylinder = PI * radius^2 * height

To find the height, the formula is:

height = volume / (PI*radius^2)

I'm assuming the radius = .6 meters so

height = 720 / (3.14159265 * .6^2)

height = 720 / 1.130973354

height = 636.61977 meters

Tp check your answer use this calculator: https://www.1728.org/diam.htm

Step-by-step explanation:

Answer:

reflection..........

Answer:

translation

Step-by-step explanation:

I am not sure about it

Answer:

Lee and Gary received the same amount of money (150,000)

Step-by-step explanation:

Step-by-step explanation:

Let the number of students be x,

Now,

7% of x = 1400

or, 7/100 X x = 1400

or, x = 1400 x 100

—————

7

or, x = 140000/ 7

or, x = 20000

Thus, there are 20,000 students

9514 1404 393

Answer:

  x ≠ 3

Step-by-step explanation:

In any case, the domain is restricted to values of the variable for which the function is defined. The value 1/0 is not defined, so the variable cannot allow the denominator to be zero. The denominator x-3 will be zero for x=3, so that value of the variable cannot be in the domain.

The domain is all real numbers except x=3.

_____

Additional comments

It is useful to become familiar with the domains of different functions. As we saw above, the reciprocal of 0 is undefined. The square root of a negative number is undefined. The log of a non-positive number is undefined. Trig functions are defined everywhere, but their inverse functions are not. Polynomial functions are defined everywhere, but ratios of polynomials have the same restriction on denominators that we see above.

Power Walking has been at the top of a natural range to walk with such a speed. A walk defines as a walking journey, and the further discussion can be defined as follows:

Given:

Power walking by the Gabriella by every 3 days  

Walking by the Mona by every 5 days  

Both walk on Monday then They both walked together,

after taking LCM of 5 and 3 that is = 15 days

For question a:

When both walk again after the same day is = 15 days

For question b:

"Tuesday" is the weekday that will it be when they walk again on the same day.

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Answer:

1/2 = r

Step-by-step explanation:

7r + 21 = 49r

Subtract 7r from each side

7r-7r + 21 = 49r-7r

21 = 42r

Divide each side by 2

21/42 = 42r/42

1/2 = r

Answer:

r = 0.5

Step-by-step explanation:

First you need to isolate the r variable.

7r + 21 = 49r

-7r          -7r

21 = 42r

Then Divide both sides by 42

0.5 = r

Now check your answer by inserting it back into the original equation.

7(0.5) + 21 = 49(0.5)

3.5 + 21 = 24.5

24.5 = 24.5

The equation is true so r = 0.5

1+2+3+4+5+6+7+8+9×2+14

Answer:

3/5 Choice 4.

Step-by-step explanation:

Remember SOH, CAH, TOA.

Sine=opposite/hypotenuse

Cosine=Adjacent/hypotenuse

Tangent=Opposite/adjacent.

Since we are looking for Cosine, we would need to locate the adjacent and hypotenuse of angle a.

The hypotenuse is the easiest to find because that will simply be the longest side of the triangle(50)

The adjacent would be 30 because 40 is the opposite(right across from theta).

So, A=30

H=50

Simply that to get Cos(A)=[tex]\frac{3}{5}[/tex].

1) soln,

or,x+8-x=2

or,x-x=2-8

•°•-6 Ans#

Answer:

1) 7/8

2) 25/26

3) 7/5

4) 5/8

5) 6/11

6) 2/7

Answer:

Step-by-step explanation:

No, the results are not necessarily representative of the school as a whole.

A random survey is a research technique that is used to gather information from a sample of people or things in a population. The results of a random survey are more likely to be representative of the population as a whole since every member of the population has an equal chance of being chosen to take part in the research.

Given:

Ivy randomly surveys students in her school to learn more about mobile phone password use.

Of 25 respondents, 14 use a password.

If the survey was conducted on a volunteer basis, it is possible that the respondents who chose to participate may have different characteristics or behaviors than those who did not participate.

This could lead to a biased sample that does not accurately represent the entire school population.

Additionally, even if the sample is representative of the school population, a sample size of 25 is relatively small, which can increase the margin of error and make it more difficult to draw accurate conclusions.

Therefore, it is important to consider the limitations of the survey method and sample size when interpreting the results.

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The complete question:

Ivy randomly surveys students in her school to learn more about mobile phone password use.

Of 25 respondents, 14 use a password.

If Ivy conducted her survey of 25 students on a volunteer basis, are the

results representative of the school?

Answer:

8.754592 km

Step-by-step explanation:

5.44 × 1.6093 = 8.754592