please help me! I don't understand this concept ​

Answer:

7pi/theta = radius

Step-by-step explanation:

So we are using the arc length, central angle(in radians), and radius.

We know arc length, which is 7pi.

We don't know theta, which does not matter.

And finally, we don;t know radius, which is what we are looking for.

To find radius, we use:

arc length/theta=radius

Lets plug in our values:

7pi/theta=radius.

So the answer to the khan acadamy question is

7pi/∅

Here are some othr things that may help:

Radian * Radius = arc length

This solves for arc length

Here is another one:

Arc length/radius= radian

This solves for radians

Hope these help! :)

Answer:

4/23 8/27

Step-by-step explanation:

Given:

The triangle A'B'C' is the image of triangle ABC after a translation as shown in the given graph.

To find:

The rule of translation in ARROW NOTATION.

Solution:

The general rule for translation is:

[tex](x,y)\to (x+a,y+b)[/tex]        ...(i)

Where, a and b are constants.

From the given graph it is clear that the coordinate of point A are (2,3) and coordinates of point A' are (4,-2).

Using (i), the image of A(2,3) is

[tex]A(2,3)\to A'(2+a,3+b)[/tex]

We have, A'(4,-2).

[tex]A'(2+a,3+b)=A'(4,-2)[/tex]

On comparing both sides, we get

[tex]2+a=4[/tex]

[tex]a=4-2[/tex]

[tex]a=2[/tex]

And,

[tex]3+b=-2[/tex]

[tex]b=-2-3[/tex]

[tex]b=-5[/tex]

Putting [tex]a=2[/tex] and [tex]b=-5[/tex] in (i), we get

[tex](x,y)\to (x+2,y+(-5))[/tex]

[tex](x,y)\to (x+2,y-5)[/tex]

Therefore, the rule in ARROW NOTATION for the given translation is [tex](x,y)\to (x+2,y-5)[/tex].

Answer:

Y-intercept= (0,-1), Slope= -1

Step-by-step explanation:

Answer:

4 packages

Step-by-step explanation:

Hi,

1.25x + 6.50 = 11.50

1.25x = 5

x = 4

He bought 4 packages.

I hope this helps :)

Answer:

0.75

0.25 less than 1

Step-by-step explanation:

i dont get it

Answer:

0.75 is the answer

Answer:

its ln 4, A as seen in the image.  

I might be wrong sry?

Answer:

C) Q3

Step-by-step explanation:

Starting from the origin, go along the x-axis in a negative direction (left) and along the y-axis in a negative direction (down).

Answer:

GK parallel to HJ

F is the midpoint

GF =FJ (bisectors)

Answer:

haha

Step-by-step explanation:

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 33

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:

D

Step-by-step explanation:

Slope = y2-y1/x2-x1

(7,-8) = (x1,y1)

(-5,-7) = (x2,y2)

Slope = (-7+8)/(-5-7)

          = 1/-12

Answer:

$15 for 5 cupcakes

Answer:

Step-by-step explanation:

[tex] \huge\mathfrak\pink{A} \huge\mathfrak\purple{n} \huge\mathfrak\blue{s} \huge\mathfrak\red{w} \huge\mathfrak\green{e} \huge\mathfrak\orange{r:}\ [/tex]

[tex]2 + 2 \times 25 [/tex]

=52

the solutin and the answer rate pls i

2x2=4

4x24=100  

Answer:

Step-by-step explanation:

The function describes a parabola

for find the value of y we have to substitute the value of x in the function

x = -1

y = (-1-2)^2 =9

(-1;9)

x = 0

y = (0-2)^2 = 4

(0;4)

x = 1

y = (1-2)^2= 1

(1;1)

x = 2

y = (2-2)^2 = 0

(2;0)

x= 3

y = (3-2)^2 = 1

(3;1)

for the second part we can solve the square of the binomial

y = x^2 -4x + 4

direction of opening : we have to see if the term that multiply x^2 is positive or negative. In this case is not expessed so it is 1, a positive number.

So the direction of opening is : upwards

line of symmetry: -b/2a where b is the term that multiply x and a the term that multiply x^2

x = 4/2 = 2

vertex: the x - coordinate of the vertex is the same of the line of symmetry

so x = 2

for find the y - coordinate we have to substitute the value of x in the equation

y = 4 - 8 + 4 = 0

vertex = (2;0)

the parabola has an upwards direction of opening so it has a point of minimum that is the vertex itself.

minimum of 0

Answer:

7.74 minutes

Step-by-step explanation:

Scott's rate = 20 /16 = 1.25

Ashley's rate = 20 / 15 = 1.333

Combined rate = (1.25 + 1.3333) = 2.583333

Hence, time it will take to inflate 20 balloons :

Rate = number of balloons / time taken

2.583333 = 20 / time taken

Time taken = 20 / 2.583333

Time taken = 7.7419

It will take them approximately 7.7 minutes to inflate 20 balloons

Answer:

True

Step-by-step explanation:

An input is always anything that equals a sum.

Input: Small-Medium-Large

Output: Prices

Answer:

yes

Step-by-step explanation:

price is compared by size

Answer:

link respuesta - https://answer-helper.com/mathematics/question21964709

Step-by-step explanation:

Answer:

Q.1 area of triangle =1/2×base×height

area oftriangle=1/2×21 feet×16 feet

area of triangle =168feet²

Q.2 A=1/2×base×height

Q.3 area of triangle =1/2× base×height

35feet² =1/2×10feet× h

35 feet² =5 feet×h

35feet²/5 feet = h

7feet = h

Q.4 area of triangle =1/2×base×height

area of triangle =1/2×32×22

area of triangle =352 feet²

Answer: d.  The vertical scale is too narrow. It needs to be a wider range, such as 0 to 100.

Step-by-step explanation:

The vertical scale is indeed too narrow. It needs to have a wider range that will enable a person who is looking at the graph, better compare the results shown because the magnitude of the number will be more apparent.

A range such as 0 to 100 would be ideal for this and would present the information in such a way that when a person looks at the graph, they understand the relative difference between the percentages who agreed with the court decision.

Answer:

$35,100

Step-by-step explanation:

Given data

Principal=$10000

Rate= 8.5%

Time = 15 years = 180 months

The expression for monthly compounded interest is

A=P(1+r/12)^t

substitute

A=10000(1+0.085/12)^180

A=10000(1+0.007)^180

A=10000(1.007)^180

A=10000*3.51

A=$35,100

Hence the balance is $35,100

Answer:

acute angle

AB is 40°

and ED is also 40°

Step-by-step explanation:

Have a nice day!

That is an acute angle

Answer:

The lateral surface of an object is all of the sides of the object , except/excluding its base and top.

I think I am correct I might sure I read it somewhere

by this explanation I guess you know your answer

have a nice day

#Captainpower

Answer:

Step-by-step explanation:

1) 0.9 x 2 x π = 1.8π ft

2) 1.6π ft

3) 0.1 x 2 x π  = 0.2π yd

4) 0.6π ft

Answer:

percent of discount= 20

Answer:

f(3) = - 18

Step-by-step explanation:

To evaluate f(3) , substitute x = 3 into f(x) , that is

f(3) = - 4(3 + 1) - 2 = - 4(4) - 2 = - 16 - 2 = - 18

Step-by-step explanation:

There are 3 times of -x

which means the total of those x

=

[tex]3 \times ( - x) \\ = - 3x[/tex]

Answer:

2/3 pound of dough is left

Step-by-step explanation:

Amount of dough available = 6 pounds

The amount used in making sandwich rolls = 8/9 of the total amount

= [tex]\frac{8}{9} \times6 = 5\frac{1}{3} pounds[/tex]

Therefore, amount of dough left over [tex]= 6- 5\frac{1}{3} = \frac{2}{3} \\[/tex]

Hence, 2/3 pounds of dough is left

Answer:

X=0,-2

Step-by-step explanation:

6 x ( x + 2 ) = 0 Divide each term in 6 x ( x + 2 ) = 0 by 6 . 6 x ( x + 2 ) 6 = 0 6 Cancel the common factor of 6 .  x ( x + 2 ) = 0 6 Divide 0 by 6 . x ( x + 2 ) = 0 If any individual factor on the left side of the equation is equal to 0 , the entire expression will be equal to 0 . x = 0 x + 2 = 0 Set the first factor equal to 0 . x = 0 Set the next factor equal to 0 and solve. Tap for more steps... x = − 2 The final solution is all the values that make 6 x ( x + 2 ) 6 = 0 6 true. x = 0 , − 2