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r= 20 ft

Find the TOTAL area of the circle   pi r²

the shaded area is a fraction of the total   119^o / 360^o  x  total area = ........  ft²

I wish... I still cant get the right answer... I wish I understood more... Thx for trying all of everyone on this thread. I might ask agian cuz I have gotten it wrong many times now lol. 

1)  tan(theta)  =  y/x     --->     theta  =  tan^-1( -5sqrt(3) / 5)  =  2pi/3

      r  =  sqrt( (5)² + (-5sqrt(3))² )  =  10

R=9  19/30

x = monday

x - 3/4 = tuesday hours     (45 min = 3/4 hour)      summed = 13 3/4

x     +     x-3/4     =  13 3/4

2x = 14 1/2

x = 7 1/4 hours        tuesday = 6 1/2 hours

sqrt(x) x sqrt(5)  =  5

x  =  5

To get three equations with the same solution -- start with the answer that you want, say 3.

1)      2x  =  6

2)      x + 1  =  4

3)      x - 1  =  2

An expression that decreases by 5 if x increases by 1

        -5x

if x = 1, -5x = -5

if x = 2, -5x = -10

if x = 3, -5x = -15

etc.

Thx but what is it in fraction form? I am confused on that portion of it :p

Acute isosceles triangle.
Sides: a = 17 b = 17 c = 16

Area: T = 120
Perimeter: p = 50
Semiperimeter: s = 25

Angle ∠ A = α = 61.928° = 61°55'39″ = 1.081 rad
Angle ∠ B = β = 61.928° = 61°55'39″ = 1.081 rad
Angle ∠ C = γ = 56.145° = 56°8'42″ = 0.98 rad

Height: ha = 14.118
Height: hb = 14.118
Height: hc = 15

Median: ma = 14.151
Median: mb = 14.151
Median: mc = 15

Inradius: r = 4.8
Circumradius
The circumcircle of a triangle is a circle that passes through all of the triangle's vertices, and the circumradius of a triangle is the radius of the triangle's circumcircle. Circumcenter (center of circumcircle) is the point where the perpendicular bisectors of a triangle intersect.
R =abc / 4rs
Circumradius: R = 9.633

Check this solution: https://www.wolframalpha.com/input/?i=Triangle+with+sides+17%2C+17%2C+16%2C+calculate+the+circumradius

answer 1 is not right... Thx for trying tho... :D

1. I understand you reasoning and I thank you for it! I have a hard time understanding decimals tho.. THX I still understand and I will probly use it in the future

2. THX, I thought it was more complicated that that lol!

I might not fully understand 1 but I went from a 0 undersding to a 85 out of 100. Thanks for all of your help!

If this is a right triangle:  tan(61)  =  x/12   --->   x  =  12 · tan(61)

If this is a right triangle:  cos(61)  =  12/y   --->   y  =  12/cos(61)

2)  If I understand the question correctly:

     There is an angle(BAC).

      AD bisectes this angle.

      E is on AD.

      M is a point on AB and ME is perpendicular to AB.

      Therefore, the length of ME is the distance from E to line segment AB.

      Since every point on the bisector of an angle is equidistant from the sides of the angle, the distance from E to AB 

           is the same as the distance from E to AC.

      Since distances are measured perpendicular to segments, E to AC must equal E to AB, so the distance from E to AC

           must also be 12.

1)  I'm going to put this on a coordinate axis.

     I place point A at the origin:  A = (0,0)

     I place point C at the point (16,0)

     Since this is an isosceles triangle, point B will be somewhere above the midpoint of AC.

     The distance from A to this midpoint is 8; the distance from A to point B is 17.

     This makes an 8 - 15 - 17 right triangle, so point B = (8,15)

     The circumcircle has its center at the intersection points of the perpendicular bisectors of the sides. 

     The line drawn from point B to the midpoint of AC is one of these perpendicular bisectors and its equation is x = 8.

     Now, I plan to find the perpendicular bisector of AB and find where this line crosses the line x = 8.

     The slope of AB is:  (15 - 0) / (8 - 0)  =  15/8.

     This means that the perpendicular bisector of AB has a slope of -8/15.

     The midpoint of AB is the point (4, 7.5).

     The equation of the perpendicular bisector of AB is:  y - 7.5  =  (-8/15)(x - 4)

      Multiplying this out:  15y - 112.5  =  -8x + 32     --->     8x + 15y  =  144.5.

      Now, to find where this line intersects the line x = 8:    8(8) + 15y  =  144.5   --->   15y  =  80.5

                     --->   y  =  5.03125

      This means that the circumcenter is (8, 5.03125)

       To find the radius, I will find the distance from this point to the point (0,0):

            distance  =  sqrt( (8.5 - 0)² + (5.03125 - 0)² )  =  sqrt( 97.56347656 )  =  9.877422567.

I hope that this is clear and I hope that I didn't mess it up!

KK this sounds fun idk if it is right or not but

Milk- $2.30

bread- $4

Potatos- 7*2=$14

egg- ??? You dont give us an exsact amount of money,

Gummy bear (overpriced and too many :p)- 34*2.50= $85

soo if you add this up not including the egg you get $105.3... Did I do something wrong or did I miss understand... Cuz if this is right you should have a negitive number... hmmm Ask another person for advise! 

Find the coordinates of point Y if Y is between X and Z, X = (-1,5) and Z = (11,-3) such that XY:YZ = 3:1

Since the ratio is 3 to 1, the point Y must be three-fourths of the way from (-1,5) to (11,-3).

From -1 to 11 is 12 units, three-fourths of 12 is 9 and 9 steps from -1 to 11 get you to 8.

From 5 to -3 is 8 units, three-fourths of 8 is 6 and 6 steps from 5 to -3 get you to -1.

The point is (8,-1).

I wrote this so Y is between X and Z. It doesn't have to be; the line segment could be YXZ or XZY.

I you want the other answers, you will need to re-post.

A reflection those his stick-like body.

The formula for the area of a cone using slant height is:  A  =  pi · radius · slant height

--->     10.4·pi  =  pi · 1.3 · slant height

--->         10.4  =  1.3 · slant height                                 (divide by pi)

--->              8  =  slant height                                          (divide by 1.3)

I'm guessing that yo're supposed to use Pick's Theorem:

  Area  =  (Number of Interior Points) + ½·(Number of Boundary Points) - 1

For instance, in the figure at top-right, there are 3 interior points and 12 boundary points, so:

   Area  =  (3) + ½·(12) - 1  =  3 + 6 - 1  =  8

A point is one of the coordinate points on the graph paper. 

An interior point is one of these points found inside the figure.

A boundary point is any point that is on the edge of the figure.

For the bottom-right figure, there are 8 interior points and 4 boundary points:

   Area  =  8 + ½·4 - 1  =  9

https://web2.0calc.com/questions/how-are-linear-velocity-and-angular-velocity-related

Since connected by a chain the LINEAR velocities are the same

the ANGULAR velocities are different due to the different radii

small gear 36 rev/min x (pi x 6 cm)/rev = linear velocity =  36 x pi x 6 cm/min                (pi x d = circumference = pi x 6)

large gear has same linear velocity

circumferences ?  Displacement?

What are the choices for the blanks?

This was asked in the last few days....