2 3/4+12 1/2 = what is it

1) soln,

or,x+8-x=2

or,x-x=2-8

•°•-6 Ans#

1+2+3+4+5+6+7+8+9×2+14

Answer:

r≈3.95

Step-by-step explanation:

Using the formula

A=πr^2

Solving for r

r=A

π=49

π≈3.94933

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

Answer:

reflection..........

Answer:

translation

Step-by-step explanation:

I am not sure about it

f(x) = -x² + 3

f(-2) = -(-2)² + 3 = -4 + 3 = -1

Answer → f(-2) = -1

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.

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).

[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

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].

Answer:

8.754592 km

Step-by-step explanation:

5.44 × 1.6093 = 8.754592

[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: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:

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:

z^1/6x^-5/4

Step-by-step explanation:

..................

have a great day

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]

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.

To learn more about the random survey;

https://brainly.com/question/4691267

#SPJ7

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:

Step-by-step explanation:

11 + (-7)

= 11 - 7

= 4

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:

1) 7/8

2) 25/26

3) 7/5

4) 5/8

5) 6/11

6) 2/7

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.

Learn more:

brainly.com/question/4546421

Answer:

Step-by-step explanation:

It seems like there is only one question. I'll answer that first and then we'll discuss what might be inferred from the introduction.

1)

The way the problem is set up you get a factoring to take place

(x^3 - 8) = (x - 2)(x^2 + 2x + 4)

                 ================      

                   (x - 2)

This question is unique. They expect you to cancel, which leaves you with y = x^2 + 2x + 4) which is a quadratic.

The reason you don't put in x = 2 is because technically, you get 0/0 which can be shown to be either 1 or 0. To get out of that, we say that 0/0 is undefined. The graphing program has taken the stance that 0/0 is 1. However I wouldn't really accept that. The whole problem comes down to 0/0 which is undefined.

Answer:

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

Step-by-step explanation:

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