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azamat
2 years ago
10

Help!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Savatey [412]2 years ago
6 0
Diameter is 9 inch so the radius is 9/2=4.5inch
Part A: 2πr=28.26inch
π=28.26/(2r)
π=28.26/(2*4.5)=3.14
Part B: πr^2=63.585inch
π=63.585inch/(4.5inch)^2
π=3.139753086 
Part C: Both of the answers are correct but Part B is more percise because it has more significant figures.
mixas84 [53]2 years ago
6 0
<h2>diameter is 9 inch so the radius is 9/2=4.5inch Part A: 2πr=28.26inch π=28.26/(2r) π=28.26/(2*4.5)=3.14 Part B: πr^2=63.585inchπ=63.585inch/(4.5inch)^2 π=3.139753086  Part C: Both of the answers are correct but Part B is more percise because it has more significant figures.</h2>

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50 POINTS!! HELP!
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x1 is the x point you are given

m is your slope

substitute all of those in from the question

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y --4 = -5/6(x-8)

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6 0
2 years ago
A rePrism measures 6.7 cm by 3.2 cm by 9 cm what is the volume of the rectangle prism
Blizzard [7]

Answer:

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6 0
3 years ago
How to write 5x - 7y = 14 in function form
Slav-nsk [51]
5x-7y=14
-5x -5x
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Subtract 5x from both sides

-7y=-5x+14
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7 0
3 years ago
Solve the following system of equations algebraically:<br> y = x2 - 6x + 9<br> y = -9x + 19
Ratling [72]
{(-5,64), (2,1)}

linear equation: y = -9x + 19
quadratic equation: y = x² - 6x + 9

Substitute the y in the quadratic equation by the its value in the linear equation.

-9x + 19 = x² - 6x + 9
      -  19               - 19    *subtract 19 to both sides
-9x         = x² - 6x -10
+9x              + 9x            *add 9x to both sides
0            = x² + 3x - 10
0            = (x + 5) (x - 2) *Factor

Set each factor = 0 and solve
x + 5 = 0    ;      x - 2 = 0
x = -5         ;      x = 2

Find the corresponding value of y using the linear equation.
y = -9x + 19

x = -5                              x = 2
y = -9(-5) + 19               y = -9(2) + 19
y = 45 + 19                    y = -18 + 19
y = 64                            y = 1

(-5,64)                              (2,1)

Check each value on each equation.
y = x² - 6x + 9
(-5,64)                                                  (2,1)
64 = (-5)² - 6(-5) + 9                          1 = 2² - 6(2) + 9
64 = 25 + 30 + 9                                1 = 4 - 12 + 9
64 = 64                                               1 = 1

y = -9x + 19
64 = -9(-5) + 19                                  1 = -9(2) + 19
64 = 45 + 19                                      1 = -18 + 19
64 = 64                                              1 = 1

{(-5,64), (2,1)}

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2 years ago
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enot [183]
Yeahh I could do it
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