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No, you're supposed to use the vietas formula

Using the Quadratic Formula    with a = 7    b = 1     c = -5  

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

roots are   x=0.776739            x=−0.919596          

( .776739 -4)(-.919596 - 4 ) = .....................

100% -  (33.33% + 15 % ) = 51.667 % blue

Second batch is   1/(3+1) = 1/4th = 25% blue

.51667 (300)    +   .25(120)      =   x (420)         where x is the decimal percentage that is blue in the final concoction.

                                                                                   solve for 'x' 

AP = 88.

There are 40 possible values of c.

The nintendo controller in the first and second rows tells us that it is equal to 11. 

This means the pacman is also 11 since 11 x 11 = 121.

Which means the gameboy thing is 20 - 11, which equals 9.

Then finally we see that the xbox controller - the gameboy, which is 9, equates to 7. This means the xbox controller is 16. 

Now we know that the nintendo controller and the xbox controller is 11, and 16.

Which finally gives us the answer of 176. :)

V = 2700 cubic inches

its wrong :/

Rectangle       6  x10  m²

   PLUS  triangle    1/2  * 6 *  7   m²

3 n  + n    -1 

4n - 1         ????

If   10 and 22 are factors , the LCM = 110    which has factors    1   2  5 10 11 22 55 110    

110

You can just say 15% of 80 and then tack the % sign on the end.

0.15*80 = 12

so the answer is 12%

The angles are equal in a parallelogram

   8x -19 = 5x+38

3x = 57

x = 19

Not sure what is being asked .....

  maybe    (7n + n ) -1          _¹

                                8n    - 1          _²                               ????

Rectangular prism volume = 12 =  L W H

triangular prism volume =  1/3 base area * height

                                       = 1/3 (  1/2 L W ) H

                                        = 1/6 LWH      is removed      leaving     5/6 LWH       5/6 * 12 = 10 in³    remains

cos 32 = adjacent side / hypotenuse

Cos 32 =   18/x

x = 18 / (cos 32^o )          finish with a calculator

sin = 2 cos       divide both sides by cos

sin / cos  = 2

tan = 2

arctan(2) = angle A = 63.4^o

sin 73 = opposite side / hypotenuse

sin 73 = x / 15

15 sin 73^o = 15       (you will need a calculator to finish)

Need the tax tables you are using ......

   according to 2020 tax tables   12% bracket is  $ 9876  through 40125

    If paintings are   500 dollars each (from  another of your posts)    9876/500 = 19.752 painitngs   

               the 20th painting Jackie sells will put jackie in the 12% bracket

J = 500P   -  3275

What tax tables are you using ?    

2020 tax table put that amount of income in the 12% bracket

income below 9875 is taxed at 10 %    (from the tables)

tax total =   .10 (9875)    +    .12  (income - 9875)

\(x = \sqrt{13^2 - 5^2} = 12\)

\(\theta = \arcsin \frac{5}{13} ≈ 22.6\)

\(\alpha = \arcsin \frac{12}{13} ≈ 67.4\)

Trapezoid area      (24 + 16)/2  * 19.2 = 384 in²

a + b = 485        or     b = 485 - a

a-b = 303

a -  (485-a)  = 303

2a = 303 + 485

a = 394 ton

b = 485-a

 b = 91 tons

Hello,

Since you have a hexagon, the formula is:

(6-2)(180)

This brings you to 720 degrees.

So, the answer is 720 degrees.

Hope this helped,

Math Whiz