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goblinko [34]
3 years ago
10

Today Tom has $150 in his savings account, and plans to put $25 in the account every

Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0

Answer:

300

Step-by-step explanation:

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The regular octagon has a perimeter of 122.4 cm. A regular octagon with a radius of 20 centimeters and a perimeter of 122.4 cent
Mamont248 [21]

A C and E

Step-by-step explanation:

I took the test

6 0
3 years ago
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Given the point (3, 4) and the slope of 6, find y when x = 27
Mumz [18]
You have to use y=mx+b
so you plug it in 4=6(3)+b
subtract 18 from both sides 
-14=b
b is the y-intercept so it would be .... y=6x-14
you plug 27 in for x 
y=6(27)-14 
y=148
4 0
3 years ago
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2: find the slop and the y-intercept of the line represented by the equation.
yarga [219]
The\ slope-intercept\ form:y=mx+b\\\\m\ is\ the slope\\b\ is\ y-intercept\\\\7x+y=8\\\\y=-7x+8\\\\the\ slope:m=-7\\y-intercept:b=8
7 0
3 years ago
−9x+4y=6 9x+5y=−33 ​
blsea [12.9K]

Answer:

{x,y} = {-2,-3}

Step-by-step explanation:

System of Linear Equations entered :

  [1]    -9x + 4y = 6

  [2]    9x + 5y = -33

Graphic Representation of the Equations :

   4y - 9x = 6        5y + 9x = -33  

Solve by Substitution :

// Solve equation [2] for the variable  y  

 

 [2]    5y = -9x - 33

 [2]    y = -9x/5 - 33/5

// Plug this in for variable  y  in equation [1]

  [1]    -9x + 4•(-9x/5-33/5) = 6

  [1]    -81x/5 = 162/5

  [1]    -81x = 162

// Solve equation [1] for the variable  x  

  [1]    81x = - 162  

  [1]    x = - 2  

// By now we know this much :

   x = -2

   y = -9x/5-33/5

// Use the  x  value to solve for  y  

   y = -(9/5)(-2)-33/5 = -3

3 0
3 years ago
Make r the subject of the formula <br>v = \pi \: h {}^{2}(r - \frac{h}{3})v=πh2(r−3h​) <br>​
mel-nik [20]

Answer:

\boxed{r =  \frac{h}{3}  +  \frac{v}{\pi {h}^{2} } }

Step-by-step explanation:

Solve \:  for \:  r:  \\  =  >   v= \pi {h}^{2}(r -  \frac{h}{3}  ) \\  \\  v=\pi {h}^{2}(r -  \frac{h}{3}  )is \:  equivalent  \: to   \:   {h}^{2}\pi(r -  \frac{h}{3}  ) = v: \\  =  >  {h}^{2}\pi(r -  \frac{h}{3}  ) = v \\  \\ Divide  \: both \:  sides  \: by  \: \pi  {h}^{2} :  \\  =  > r -  \frac{h}{3}  =  \frac{v}{\pi {h}^{2} }  \\  \\ Add \:   \frac{h}{3}  \:  to  \: both \:  sides:  \\  =  > r =  \frac{h}{3}  +  \frac{v}{\pi {h}^{2} }

7 0
2 years ago
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