what is pi? I need help with this lol, first to answer gets brainliest

Answers

Answer 1

Answer:

What is pi?

The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159.

Being an irrational number, π cannot be expressed as a common fraction, although fractions such as 22/7 are commonly used to approximate it. Equivalently, its decimal representation never ends and never settles into a permanently repeating pattern. Its decimal (or other base) digits appear to be randomly distributed, and are conjectured to satisfy a specific kind of statistical randomness.

Related Questions

Homework help ???????????

Answers

Answer:

15

Step-by-step explanation:

The calculation is:

endamount - startamount divided by number of days.

(237-27) / 14 = 15

Answer:

237 - 27 = 210 (she already had 27 to start, so subtract that from the total)

210 ÷ 14 = 15 (divide by 14 because there are 14 days in two weeks)

so she bought 15 stickers each day

I'm wasting a question to tell you that the majority of the questions that are asked here leave me with little hope in our generations. Show initiative!!!!

Answers

Answer:

I'm sorry you feel that way. ;(

Step-by-step explanation:

Answer:

I know like the one I asked today the guy just said 7 as the answer and yes as the explanation. Like um hello, Thats not an answer it was wayyy off. I was so frustrated cause I just lost 20 points. People just do it for the points. and thats what makes me sad cause people can be greedy on here.

A number increased by 9 is -4. What is
the number? Write an equation and solve.

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-4-9=13
..............

The equation of the line? ​

Answers

Answer:

○ [tex]\displaystyle y = 2x + 7[/tex]

Step-by-step explanation:

Use the Slope-Intercept Formula instead of the Point-Slope Formula because it is MUCH, MUCH faster, plus parallel equations have SIMILAR RATE OF CHANGES [SLOPES ], so [tex]\displaystyle 2[/tex] remains as is:

[tex]\displaystyle y =mx + b \\ \\ 3 = 2[-2] + b → 3 = -4 + b; 7 = b \\ \\ \boxed{y = 2x + 7}[/tex]

I am joyous to assist you at any time.

If a plant grows 1 inch a day, starting at 2 inches, how tall will it be on the 7th day?

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It should be 9in at the 7th day

-5•3 = 3 • -5

Name the property that justifies the statement

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Answer:

commutative property of multiplication

Step-by-step explanation:

Solve the triangle given that a=19 b=16, c=11.

Answers

Answer:

The angles of the triangle are approximately 87.395º, 57.271º and 35.334º.

Step-by-step explanation:

From statement we know all sides of the triangle ([tex]a[/tex], [tex]b[/tex], [tex]c[/tex]), but all angles are unknown ([tex]A[/tex], [tex]B[/tex], [tex]C[/tex]). (Please notice that angles with upper case letters represent the angle opposite to the side with the same letter but in lower case) From Geometry it is given that sum of internal angles of triangles equal 180º, we can obtain the missing information by using Law of Cosine twice and this property mentioned above.

If we know that [tex]a = 19[/tex], [tex]b = 16[/tex] and [tex]c = 11[/tex], then the missing angles are, respectively:

Angle A

[tex]a^{2} = b^{2}+c^{2}-2\cdot b\cdot c \cdot \cos A[/tex] (1)

[tex]A = \cos^{-1}\left(\frac{b^{2}+c^{2}-a^{2}}{2\cdot b\cdot c} \right)[/tex]

[tex]A = \cos^{-1}\left[\frac{16^{2}+11^{2}-19^{2}}{2\cdot (16)\cdot (11)} \right][/tex]

[tex]A \approx 87.395^{\circ}[/tex]

Angle B

[tex]b^{2} = a^{2}+c^{2}-2\cdot a\cdot c \cdot \cos B[/tex] (2)

[tex]B = \cos^{-1}\left(\frac{a^{2}+c^{2}-b^{2}}{2\cdot a\cdot c} \right)[/tex]

[tex]B = \cos^{-1}\left[\frac{19^{2}+11^{2}-16^{2}}{2\cdot (19)\cdot (11)} \right][/tex]

[tex]B\approx 57.271^{\circ}[/tex]

Angle C

[tex]C = 180^{\circ}-A-B[/tex]

[tex]C = 180^{\circ}-87.395^{\circ}-57.271^{\circ}[/tex]

[tex]C = 35.334^{\circ}[/tex]

The angles of the triangle are approximately 87.395º, 57.271º and 35.334º.

If you draw a card with a value of four or less from a standard deck of cards, I will pay you $162. If not, you pay me $45. (Aces are considered the highest card in the deck.) Find the expected value of the proposition. Round your answer to two decimal places. Losses must be expressed as negative values.

Answers

Answer:

the expected value of the proposition is 2.77

Step-by-step explanation:

The computation of the expected value of the proposition

= 162p - 45(1 - p)

= 162 × 12 ÷ 52 - 45 × (1 - 12 ÷ 52)

= 2.77

Hence, the expected value of the proposition is 2.77

So we simply do the above calculation so that the expected value could come

Please help me I’ll give you brainliest

Answers

An= a1+(n-1)d
An= -5+(n-1)4

In 2010, the population of Alabama was about 4.8 million. This is an increase of about 7.5% over the population of Alabama in 2000. If this trend continues, predict the population of Alabama in 2030 and 2040.

Answers

Answer:

alabama is 7.85 million

Step-by-step explanation:

Simplify completely x2 + 4x - 45/x2 +10x+9 and find the restrictions on the variable.

Answers

Answer:

The correct answer is,

[tex] {x}^{2} + 14x - \frac{45}{ {x}^{2} } + 9[/tex]

what is the value of x?

Answers

Answer:

i go with 55

Step-by-step explanation:

Answer:

25°{vertically opposite angle}

hope it helps.

Pls help extra points and mark brainlist

Answers

The answer is 19,657. I multiplied the expressions first (10^4=10,000) (7^3=343), then I plugged them back into the equation. 2•10,000-343=19,657

Write as a product - 12a+12
DONT ANSWER QUESTION IF U DONT KNOW

Answers

Answer:

24a no>?

Step-by-step explanation:

Find all of the real and imaginary solutions of x^3+8=0

Answers

Answer:

[tex]x=-2, \:1+\sqrt{3}i,\: 1-\sqrt{3} i[/tex]

Step-by-step explanation:

[tex]x^3+8=0,\\x^3=-8,\\\mathrm{For\:}x\in \mathrm{R}, x=-2[/tex]

Real solutions ([tex]x \in \mathrm{R}[/tex]): [tex]x=-2[/tex]

However, recall that [tex](\frac{-1\pm\sqrt{3}i}{2})^3=1[/tex].

Therefore:

[tex]\frac{-1\pm\sqrt{3}i}{2}\cdot -2=-2[/tex].

Thus, for [tex]x^3=-8,\: x\notin \mathrm{R}[/tex]:

[tex]x=1\pm\sqrt{3}i[/tex].

Therefore, the real and nonreal solutions of [tex]x^3+8=0[/tex] are [tex]\fbox{$-2, \:1+\sqrt{3}i,\: 1-\sqrt{3}i$}[/tex].

Answer:

-2, 1 +/- i*sqrt(3)

(3 solutions)

Step-by-step explanation:

Because the left side is in the form a^3+b^3, we can factor it as (a+b)(a^2-ab+b^2) (good formula to remember)

So we have

(x+2)(x^2-2x+4)

We can see one value already

x+2 = 0

x = -2

now we solve for

x^2-2x+4 = 0

We can use the quadratic formula, and see that the determinant is negative (2^2-4*1*4 < 0)

Therefore we have two imaginary solutions

(-(-2) +/- sqrt(2^2-4*1*4))/)2*1) = (2 +/- sqrt(-12))/2 = (2 +/- 2sqrt(-3))/2 = 1+/- sqrt(-3) = 1 +/- i*sqrt(3)

Yeah so How are the numbers related?

Answers

Answer:

yay free points numbers are all numbers

Step-by-step explanation:

I don’t even know what numbers are you trying to say that relate within each other. Please repost the question this time and add a footage that would help us.

x2 – 12x + 37 = 0 in simplest a + bi form

Answers

Answer:

x=6+1

Step-by-step explanation:

Reaner Recycling collected 7/4 ton of aluminum last Saturday. If 7/8 ton of aluminum can be shredded each day, how many days will it take to process what was collected on Saturday?
help me please it is hard

Answers

Answer:

2 days

Step-by-step explanation:

You would have to change 7/4 to have the same common denominator as 7/8, which is 8. 7/4 is equal to 14/8, or 1 6/8. Then you would subtract 1 6/8 by 7/8. What would be left would be 7/8. And of course, 7/8 minus 7/8 would be 0.

Hope this help you

Find the perimeter of the following square.

A. 1 inch

B. 2 inches

C. 3 inches

D. 4 inches​

Answers

Answer:

D

Step-by-step explanation:

the perimeter of a shape is the sum of it's sides

in a square all sides have the same length

here all sides are 1 inch

so 1+1+1+1 = 4 inches which is D

please help asap will give brainliest !!!

Answers

Step-by-step explanation:

The longest side in a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle.

So the smallest angle is <P.

Hope it may help :)

9. Ricardo rides his bike between 90 and 120 miles over a 5 day period. Which is a
reasonable number of miles Ricardo rides each day?
a 13
b. 17
C. 22
d. 25

Answers

A reasonable number of miles Ricardo rides each day is C.22

What is the product of the radical expression?
(7- sqrt7)(-6 + sqrt7)

Answers

Given:

The expression is

[tex](7-\sqrt{7})(-6+\sqrt{7})[/tex]

To find:

The product of the radical expression.

Solution:

We have,

[tex](7-\sqrt{7})(-6+\sqrt{7})[/tex]

Using distributive propertry, we get

[tex]=(7)(-6)+(7)(\sqrt{7})+(-\sqrt{7})(-6)+(-\sqrt{7})(\sqrt{7})[/tex]

[tex]=-42+7\sqrt{7}+6\sqrt{7}-7[/tex]

On combining like term, we get

[tex]=(-42+7)+(7\sqrt{7}+6\sqrt{7})[/tex]

[tex]=-49+13\sqrt{7}[/tex]

Therefore, the product of the given radical expression is [tex]-49+13\sqrt{7}[/tex].

Question Help 3.1.PS-10 The Stock Market Alexander is a stockbroker. He earns 14% commission each week. Last week he sold $7,100 worth of stocks. How much did he make last week in commission? If he averages that same amount each week, how much did he make in commission in 2011? Last week, he made $ in commission.​

Answers

$537 I looked at it and I know this is the answer and I checked

What is the diameter of X?



12 cm
4 cm
8 cm
2 cm

Answers

Answer:

diameter =2xradius

diameter=2x4

diameter =8cm

Answer:8cm

Step-by-step explanation:

HELP ME EASY THINKING PROBLEM 20 POINTS

Answers

do you move the 6 for the 2?

Step-by-step explanation:

I'm sorry if its wrong

have a good day!

The table shows the numbers of seeds the owners of pumpkin patch farms received from different seed suppliers. Each of the pumpkins they harvest usually weighs between 10 and 12 pounds. There are 60 rows and the farmers will plant the same number of seeds in each row. How many seeds will they plant in each row

Answers

Answer:I’m trying to find it too

Step-by-step explanation:I don’t know what it is but I’m sure it’s 12-90

Which equation is true?
-56
7
- ( 24 ) = -3
Done -

Answers

Answer:

First Equation is Right which is -56/8 = 7

Step-by-step explanation:

LHS = -56/8

=> -7

RHS = -7

So LHS = RHS

Answer:

the first one. -56/8 = -7

Pls answer asap
Will give brainliest

Answers

Answer:

8

Step-by-step explanation:

the answer is option c8

thank u

how many 1/5's are there in 9
1/5 9 = _____

Answers

Answer:

45

Step-by-step explanation:

1

1/5 X 5    times 9

Answer:

45 times is the correct answer

Vhich real-world scenario can be described using the algebraic expression c/4?​

Answers

Answer:

Baking c cookies and dividing them evenly among 4 friends.

Brainiest???

Hope this helps

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