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Jen bought a dozen 18 liters of soy sauce. He used 80 bottles to hold the sauce. In liters and milliliters, calculate the average volume of each bottle of soy sauce.

You want litres per bottle so it is just       18/80 = 0.225 Litres = 225 mL

你想升每瓶所以它只是18/80=0.225升=225毫升

Thanks Dragonlance :)

I think its x=-4

I just read on the German forum that Radix have a problem too.

I have reported the problem.  Hopefully you will be back on line very shortly :/

Hi Heureka,

That is no good at all!     

I will send a not to Admin for you :)

Hopefully we will have you back on  the forum very soon :)

Melody

Hi Mr. Alan

I been playing with this for 3 hours and this is what I have.

I guess you can read what I do here

But when I solve it and put in the x part it do not equal the y part.

Can you see what I do wrong?

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This is way ahead of where I am in maths.  But it look like a fun one to do.

a quadratic is "y = ax2 + bx + c" a is negative because the parabola is upsidedown.

(-2,2)(0,1)(1,-2.5)

-a(-2)^2+b(-2)+c =2

-a(0)^2+b(0)+c =1

-a(1)^2+b(1)+c =-2.5

a(4)-2b+c=2

0+0+c=1

-a+b+c=-2.5

-----

a(4)-2b=1

a-b=1.5

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B=1.5-a

4a-2(1.5-a)=1

4a-3+a=1

5a=4

A=4/5

A=1.2

--------

B=1.5-1.2

B=0.3

--------

A=1.2 B=0.3 C=1

1.2(x^2)+0.3x+1=0

1.2(-2^2)+0.3(-2)+1 not = 0

The general expression for a quadratic function can be written as  y = a*x² + b*x + c where a, b and c are constants. 

You can find a, b and c by using the points on the graph

2 = a*(-2)² + b*(-2) + c     or  2 = 4a -2b + c

1 = a*0² + b*0 + c             or  1 = c

-2.5 = a*1² + b*1 + c         or -2.5 = a + b + c

You now have 3 equations for the 3 unknowns a, b and c.  Can you take it from here?

Here are the steps:

\(5\sqrt{18}-2\sqrt{2}\rightarrow5\sqrt{2\times9}-2\sqrt{2}\rightarrow \sqrt{2}(5\sqrt{9}-2)\rightarrow \sqrt{2}(5\times3-2)\rightarrow13\sqrt{2}\)

Assuming this is (5x - 3)/6 = x + 2 then multiply both sides by 6

5x - 3 = 6x + 12

subtract 5x from both sides

-3 = x + 12

subtract 12 from both sides

-15 = x

or just x = -15

.

Use the fact that \((a\times b)^m = a^m\times b^m\)

and the fact that \((a^m)^n=a^{m*n}\)

to get \(-(2x^2)^5\rightarrow -(2^5\times (x^2)^5) \rightarrow -(32\times x^{10})\)

It's a "plane"

Domain=R

Range=R(all real numbers)

Parity=Odd

Root=z = 4 x+y

Derivative=(d)/(dx)(4 x+y-z) = 4

Indefinite Integral= (4 x+y-z) dx = 2 x^2+x y-x z+constant

The real numbers include all the rational numbers, such as the integer −5 and the fraction 4/3, and all the irrational numbers such as √2 (1.41421356…, the square root of two, an irrational algebraic number) and π (3.14159265…, a transcendental number

The numbers in your brackets are not clear. Please state them very clearly so we can help you.

Well, did you think about it.

whats 3rs^4??? simplified=(3rs)^4=12r^4s^4. And, there you have it.

If it not land on the edge then there are heads and tales and that is two ways each toss can happen. So for 20 toss of the coin it is 2^20 different ways. That is 1,048,576 different ways.

It really not matter if it land on the ground or not as long as it is heads or tails.

WHEN THE ANGLE IS SPECIFIED EITHER IN DEGREES OR RADIANS: 2Pi Radians=360 Degrees.

Your equation is not written right. Check your book!!!.

How many do you think?

When toss a coin 20 times ti FALLS to the ground 20 times!!!!!!!!

If you meant to say "what's the probability of tossing a coin 20 and getting 10 heads or 10 tails"

In that case the probability is 50/50. Or equal chance of getting a head or a tail.

Just divide the fraction part by 10, 100, 1000.....etc.

.333/1000=1/3. Then just add it to the -6, so it becomes -6 1/3

A car travels 25 km in 0.5 hours. What is its average speed in m/s? (Find velocity)

1 Km=1000 meters X 25=25,000 meters that the car travelled. But it did that in 1/2 an hour.

1. 25,000 / 1/2=25,000 x2=50,000 meters per hour. But 1 hour=60 x 60=3,600 seconds
2. So, we divide 50,000 meters/ 3,600 seconds=13.8888..... meters per second.

Yes. Even prime numbers, such as 3,5,7,11..........etc. each of them is divisible by itself or by 1. Such as 3/3=1 or 3/1=3 and so on.

This one is not too hard.

Make n the number of time you swim.

Then (80 +1n) =3n

You can tell this is true because if you swim once with a membership then it cost $81. If you swim once without a membership it cost $3. When you solve this it tell how many times you need to swim to break even that is when they equal to eachother. After that you save money.

 (80 +1n) = 3n

3n-1n = 80

2n = 80

N = 40

You break even at 40 times