What's e=mc²? I need it for my math class

Answer:

8

Step-by-step explanation:

Measure of one interior angle of a regular polygon of n sides:

(n - 2)180/n

Measure of one exterior angle of a regular polygon if n sides:

360/n

"the interior angle is thrice the exterior angle"

(n - 2)180/n = 3 * 360/n

(n - 2)180 = 3 * 360

n - 2 = 3 * 2

n = 8

The number of sides is 8.

Answer:

No, it does not

Step-by-step explanation:

Answer:

1/8

Step-by-step explanation:

Answer:

1/8

Step-by-step explanation:

9514 1404 393

Answer:

  A) the curves are ellipses

  B) 161 yards

  C) 366 yards

Step-by-step explanation:

A) The general shape of the side marked c has the appearance of two quarter-ellipses. The major axis is approximately 125 yards, and the minor axis is approximately 80 yards. Paul could assume that the curves are quarter-ellipses.

__

B) For an ellipse with this eccentricity, its perimeter is within 2% of that of a circle with a diameter equal to the average of these dimensions.*

So, the approximate length of side c is ...

  c ≈ π(80 +125)/4 ≈ 161 . . . . yards; length of side c

__

C) The perimeter of the pond is the sum of the side lengths, so will be ...

  80 yds + 125 yds + 161 yds = 366 yds . . . pond perimeter

_____

* Indian mathematician Ramanujan developed an approximate formula for the circumference of an ellipse, which would otherwise need to be computed using an elliptic integral. it is ...

  C = π(a+b)(1 + 3λ²/(10 +√(4 -3λ²))

where λ = (a -b)/(a +b) and a, b are the semi-axis lengths.

For this ellipse, λ = 9/41, so the last factor is about 1.01208313. Using this factor, the circumference is expected to be good to about 7 significant digits. Continuing the calculation, we find ...

  C ≈ 325.904 . . . . circumference of an ellipse 125 yd long by 80 yd wide

This is twice the length we imagine for c, so c ≈ 163 yards. As we said, the approximation used above is within 2% of this value.

The attachment shows the shape if the curve is actually an ellipse.

Answer:

There are 50,000 decimeters in 5 kilometers

Step-by-step explanation:

as for showing my work not really sure what you want me to do it's pretty straightforward, butttttttt what i did was multiply the length value by 10,000, so [tex]10,000=10^4[/tex]

I'm not sure if that's what you're looking for but I hope this helps :)

Answer:

2=53 employees(m)

4=91 employees(m)

6=129 employees(m)

8=167 employees(m)

Step-by-step explanation:

19x2=38+15= 53

19x4=76+15= 91

19x6=114+15=129

19x8=152+15=167

Answer:

(x+3)² = (x+3)(x+3)

When we distribute polynomials, we have to make sure each term mutliplies to all of the terms in the other polynomial.

x(x+3) + 3(x+3)

x² + 3x + 3x + 9

x² + 6x + 9

Methods such as FOIL (first, outside, inside, last) and creating a table can help you with this.

Step-by-step explanation:

Answer:

x^(2)+6x+9 also x=-3

Step-by-step explanation:

Answer:

10/3

Step-by-step explanation:

110/33

lowest term of 110/33 is 10/3

Answer:

4, 11

Step-by-step explanation:

Q# 13 :

Let the first number be 'x'

the 2nd number would be ' x + 7'

x + x + 7 = 15

2x= 15-7

x= 8/2

x= 4

2nd number: x + 7

                    = 4+7

                    = 11

Answer: I disagree with the person that answers before. The answer is D, parliamentary democracy.

Here's why: The definition of parliamentary democracy is a democratic form of government in which the party with the greatest representation in the parliament (legislature) forms the government, its leader becoming prime minister. The United Kingdom is a unitary state with devolution that is governed within the framework of a parliamentary democracy under a constitutional monarchy in which the monarch, currently Queen Elizabeth II, is the head of state while the Prime Minister of the United Kingdom, is currently Boris Johnson  

Answer:

It is not skewed.

Step-by-step explanation:

When the mean of a distribution is equal to that of its median, the distribution is not skewed.

Here, mean and median of a distribution is 276. It means, both mean and median are same. It would mean that the distribution is not skewed.

Out of the given options, the correct option is (d) "It is not skewed".

Answer:

20 percent is added

Step-by-step explanation:

Answer:

the circumference is 31.4159 (or 31.42)

Answer:

[tex]\cos(69)[/tex]

Step-by-step explanation:

We will use the co-function identity for sine, where:

[tex]\sin(x)=\cos(90-x)[/tex]

Since sin(21)=0.358=cos(x). This means that:

[tex]21=90-x[/tex]

Solve for x. Add x to both sides:

[tex]x+21=90[/tex]

Subtract 21 from both sides:

[tex]x=69\textdegree[/tex]

Hence:

[tex]\sin(21)=\cos(69)\approx0.358[/tex]

Answer:

B.

Step-by-step explanation:

The graphed line has a slope of 3 which is higher than the functions slope of 2. It also has a y-intercept of 4 while the functions y-intercept is -5, therefore it is higher.

Answer:

There you go cupcake!

Answer:

The investment will generate a NPV of $2,731.

Step-by-step explanation:

Cost of an investment (PV) = $5,000

Annual cash flows = $3,000

Period of investment = 3 years

Interest rate of return = 8%

Annuity Factor = 2.577 (for 3 years at 8% per year)

Present value of the annuity = $3,000 * 2.577 = $7,731

NPV = Annuity PV minus PV of investment cost

= $7,731 - $5,000

= $2,731

b) The NPV (net present value) of $2,731 is the difference between the present value of the annual cash flows $7,731 and the investment cost of $5,000.  The resulting NPV is positive and the investment should be accepted.

Answer:

Equation of a line through (15, 8) that is perpendicular to the line y =57 x −1 is [tex]\mathbf{y=-\frac{1}{57}x+\frac{157}{19}}[/tex]

Step-by-step explanation:

We need to write an equation of a line through (15, 8) that is perpendicular to the line y =57 x −1.

The equation will be in slope-intercept form: [tex]\mathbf{y=mx+b}[/tex]

Where m is slope and b is y-intercept.

Finding Slope of new line

We are given equation [tex]y =57x-1[/tex] of line, which is perpendicular to the line whose equation we need to find.

If the lines are perpendicular there slopes are inverse of each other i.e [tex]m_1=-\frac{1}{m_2}[/tex]

Slope of given line is m= 57 ( compare the given equation with standard slope-intercept form the value of m is 57

Slope of new line is m= [tex]-\frac{1}{57}[/tex]

Finding y-intercept of new line

Now finding y-intercept (b) for new line. It can be found using point (15,8) and slope m = [tex]-\frac{1}{57}[/tex]

[tex]y=mx+b\\8=-\frac{1}{57}(15)+b\\8=-\frac{15}{57}+b\\b=8+\frac{15}{57}\\b=\frac{8*57+15}{57}\\b=\frac{471}{57}\\b=\frac{157}{19}[/tex]

So, y-intercept b of new line is: [tex]b=\frac{157}{19}[/tex]

Equation of required line

Equation of line having slope m= [tex]-\frac{1}{57}[/tex] and y-intercept  [tex]b=\frac{157}{19}[/tex] is:

[tex]y=mx+b\\\mathbf{y=-\frac{1}{57}x+\frac{157}{19}}[/tex]

So, equation of a line through (15, 8) that is perpendicular to the line y =57 x −1 is [tex]\mathbf{y=-\frac{1}{57}x+\frac{157}{19}}[/tex]

Answer:

49/27 i think

Step-by-step explanation:

Answer:

a) 1/2,  1/2,  1/2

b) T

   R

   S

c) DEF and TRS are similar

Step-by-step explanation:

a) TR/DE = 9/18 = 1/2

   RS/EF = 8/16 = 1/2

   TS/DF = 5/10 = 1/2

b) E is the smallest angle on the DEF, and it corresponds w the smallest angle on TRS, R. D corresponds to T, and F to S

they r similar figures -  u can see it if u tilt TRS counterclockwise nd flip it

c) they r similar bcuz u can see in part a) that they all have proportional side lengths so yea theyre similar

Answer:

20 ft.

Step-by-step explanation:

Answer: Two sides of a triangle have lengths 2 and 7. Find all possible lengths of the third side. Show Answer. difference $$< x <$$ sum $$7 -2 < x < 7+2$$ Answer: $$5 < x < 9$$ Problem 7. Two sides of a triangle have lengths 12 and 5. Find all possible lengths of the third side

Step-by-step explanation: i hope i helped

Answer:

p(x) as a product of linear factors. [tex]p(x)=(x+3)(x-2)(x+6)[/tex]

Step-by-step explanation:

(x+3) is the factor of polynomial [tex]p(x) = x^3 + 7x^2 - 36[/tex]

So, we can divide [tex]p(x) = x^3 + 7x^2 - 36[/tex] by (x+3) to find other factors

The division is shown in figure attached.

The quotient is: x^2+4x-12

Now factoring the quotient to find linear factors

[tex]x^2+4x-12\\=x^2+6x-2x-12\\=x(x+6)-2(x+6)\\=(x-2)(x+6)[/tex]

The factors are [tex](x+3)(x-2)(x+6)[/tex]

So, p(x) as a product of linear factors. [tex]p(x)=(x+3)(x-2)(x+6)[/tex]

Answer:

2 and 4

Step-by-step explanation:

you can just try and u'll get 2 and 4

Answer:

Step-by-step explanation:

Let the integers be x and x+2

Then we have:

The numbers are:

Answer:  Part 1: y =10x+50

Part 2:  Jordan’s total cost = $90

Step-by-step explanation:

Given: Price of each large balloon = $25

Price of each small balloon = $10

Price of 2 large balloons = 2 (Price of each large balloon)

= $2 (25)

= $50

Part 1: Total cost = (Number of small balloons)(Price of each small balloon)  +  (Number of large balloons)(Price of each large balloon)

Let x = Number if small balloons , y=  total cost Jordan must pay in dollars.

Then, y= (x)(10)+(2)(25)

⇒ y =10x+50

Part 2: If she purchases 4 small balloon animals, put x=4

Then, y= 10(4)+50=40+50= 90

i.e. Jordan’s total cost = $90

Answer:

24w - 21

Step-by-step explanation:

-8(2 - 3w) - 5

We first expand the -8

-16 + 24w - 5

We then add -16 to -5

-16 + -5

= -21

We get the 24w, put in in the equation and get 24w - 21

Answer:

24w−21

Step-by-step explanation:

Factoring  24w2+10w-21

The first term is,  24w2  its coefficient is  24 .

The middle term is,  +10w  its coefficient is  10 .

The last term, "the constant", is  -21

Step-1 : Multiply the coefficient of the first term by the constant   24 • -21 = -504

Step-2 : Find two factors of  -504  whose sum equals the coefficient of the middle term, which is   10 .

     -504    +    1    =    -503

     -252    +    2    =    -250

     -168    +    3    =    -165

     -126    +    4    =    -122

     -84    +    6    =    -78

     -72    +    7    =    -65

     -63    +    8    =    -55

     -56    +    9    =    -47

     -42    +    12    =    -30

     -36    +    14    =    -22

     -28    +    18    =    -10

     -24    +    21    =    -3

     -21    +    24    =    3

     -18    +    28    =    10    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -18  and  28

                    24w2 - 18w + 28w - 21

Step-4 : Add up the first 2 terms, pulling out like factors :

                   6w • (4w-3)

             Add up the last 2 terms, pulling out common factors :

                   7 • (4w-3)

Step-5 : Add up the four terms of step 4 :

                   (6w+7)  •  (4w-3)

            Which is the desired factorization

Answer:

1/8

Step-by-step explanation:

3/4= 6/8

so 7/8 - 6/8 = 1/8

Answer:

B.

Step-by-step explanation:

3/4*2=6/8

6/8+1/8=7/8

hope this helps :3

if it did pls mark brainliest