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The ratio between voltage potential difference and current will be equal to resistance, assuming the circuit is ohmic.

Therefore, we can calculate current with the following equation:

\(R=\frac{V}{I}\)

Where R is resistance, V is potential difference, and I is current.

In your question's case we would use it as shown:

\(220=\frac{9}{I}\)

\(I=\frac{9}{220}\)

\(I=0.041A\)

(Please don't call it voltage. Volts are the units of potential difference. It's like calling distance "meterage" or time "secondage".)

9+20=21

It's 52 times 2 plus 52 divided by 2, which means 52*2+52/2. That makes 130 ounces.

2+2=4

it's 5

what is the mean of 2 6 9 7

2 + 6 + 9 + 7=24

24/4=6 the mean

Just use the calculator:

6%   of the amount of your purchase will be    (.06) x 143.93 = $  8.64 tax    THIS tax is ADDED to your PURCHASE

143.93 + 8.64 = $ 152.57 TOTAL

DF is the hypotenuse of the triangle DEF.....so 

cos(40)  = 100/ DF    rearrange

DF = 100/ cos(40 ) = about 130.5 m

if my subtotal is 143.93 and tax is 6.0000% what is my actual total?

143.93 X 1.06=152.57(rounded)

There is an infinite number of answers to this equation.   If you have TWO variables ('x' and 'y')   you need TWO equations to find a unique x,y which solves the equations.

   You CAN graph this equation......the graph will display all of the values that solve the equation,

First put the equation into f(x) = y =

x=2/3y+6       2/3 y = 6-x   then y = f(x) = 3/2 (6) - 3/2x = 9-3/2x    so plug that into the graph function of the calculator to see all of the x,y values that 'solve ' this equation !   (it is an infinite nearly vertical line....you see it?)

            12223*(-429)-(-8236)/0.125= -5,177,779 

We have this system of equations

a(11)^2 + b(11) + c  = -8   →       121a + 11b + c  = -8      (1)

a(-5)^2 + b(-5)  + c  = -164  →      25a  -   5b + c  = -164   (2)

a(33)^2 + b(33) + c = -36   →     1089a + 33b + c  = -36    (3)

Multiply (2) by -1  and add to (1)   ......this gives

96a + 16b  =  156   (4)

Multiply (1) by -1 and add to (3).......this gives

968a + 22b = -28   (5)

Multiply (4) by -22 and (5) by 16.....this gives

-2112a    -352b = -3432   (6)

15488a +352b  = - 448   (7)

Add (6) and (7) together

13376a = -3880   (8)

Divide both sides of (8)  by 13376  and a = -485/1672

And using (4) to solve for b, we have

96(-485/1672) + 16b = 156    →  b = 4803/418

And using (1) to solve for c, we have

121(-485/1672) + 11(4803/418) + c  = -8  →   c =  -15093/152

So the equation is ... y = (-485/1672)x^2 + (4803/418)x - 15093/152

Here's the graph of the parabola......https://www.desmos.com/calculator/dukrb3wrm2

I'll help you with number 9......see if you can do the rest by yourself

#9  the problem gives you:

                55 wpm = S

                   285 =w

                      e= ?    This is what you are looking for....just substitute these values into the equation that is given    S= 1/5 (w-10e)    and solve for 'e'

                        55 = 1/5 (285-10e)     Multiply both sides by '5'

                         275 = (285 - 10e)       Subtract '285' from each side

                         -10 = -10 e                   Divide both sides by ' -10'

                            1 = e 

For #10 , the values will be w = 300  e = 5    Substitute into the equation and solve for 'S'

3+4=7

I can't post a digram here, but I can give you a hint where to start to find the distance from the fried fish to Tortuga.....use the cosine law  (have you used this law before?)

Two sides of the triangle will be the distances given in the problem   40 nm (nautical miles) and 20 nm    and the angle will be.........Do you know?   the information given will allow you to determine it....re-post if you need more help.

If you take a month as 30 days, then:

30 X $7.25=$217.5

Simplify the following:
sqrt(3)×2 (4+sqrt(2)×2)

Factor 2 out of 4+2 sqrt(2) giving 2 (2+sqrt(2)):
sqrt(3)×2×2 (2+sqrt(2))

2×2  =  4:
4 sqrt(3) (2+sqrt(2))

sqrt(3) (2+sqrt(2)) = 2 sqrt(3)+sqrt(6):
Answer: | 
| 4 2 sqrt(3)+sqrt(6)  =23.654365.......etc

Press "2nd" key first. Then you will see a key labled "atan". Just enter the number you want and press "atan". You may have to press = sign to get your answer.

Chuck Norris.

(2 / 7) x  = 6      multiply both sides by 7 / 2

x = 6 ( 7 / 2)  

x = 42 / 2    = 21

3x^2+4   ......sub -3 for x and we have

3 (-3)^2 + 4  =

3(9) + 4 =

27 + 4   =

31

4-a)x(asquare+7a-18)=

(4-a) X (a^2 + 7a - 18)=

Solve for a over the real numbers:
-((a-4) (a^2+7 a-18)) = 0

Multiply both sides by -1:
(a-4) (a^2+7 a-18) = 0

Split into two equations:
a-4 = 0 or a^2+7 a-18 = 0

Add 4 to both sides:
a = 4 or a^2+7 a-18 = 0

The left hand side factors into a product with two terms:
a = 4 or (a-2) (a+9) = 0

Split into two equations:
a = 4 or a-2 = 0 or a+9 = 0

Add 2 to both sides:
a = 4 or a = 2 or a+9 = 0

Subtract 9 from both sides:
Answer: | 
| a = 4 or a = 2 or a = -9

what is two squared times eleven squared divided by three squared?

(2^2 X 11^2)/3^2=53 7/9

1 1/4*12=5/4 X 12=60/4=15

what is 2/7x=6 cross multiply

42x=2 divide both sides by 42

x=2/42

x=1/21