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- Differential equation Word Problem. Please Help.?
*By*:-Christian

Water polluted with 1/2 milligram per liter of silver is poured into a storage tank at a rate of 6 liters per minute. Furthermore, the polluted water is being absorbed into the ground at a rate of 1 liter per minute. Suppose that the tank begins with 20 l - Using Heron's Formula calculate the area of the given triangle below?
*By*:-chi

- What is the probability of rolling a product of 30 when rolling two 6-sided number cubes?
*By*:-hannah

A. 1/18

B. 1/12

C. 5/36

D. 1/36 - How much does 4b+18a equals to? (b=-2 and a= 2/4 (two fourths)?
*By*:-Thomas

- 8 + 9 = 1

4b+18a

= 1 (if b = -2 and a = 2/4 (two fourths)

When b = -2 and a = ²⁄₄ = ¹⁄₂

4b + 18a =

4(-2) + 18(¹ - How much is 1/3 from $4,000?
*By*:-Veronica

I think you have an ESL problem.

⅓ FROM $4000 means $4000 - ⅓

FROM means SUBTRACT

$4,000 - ⅓ = $3999⅔

⅓ OF $4000 means $4000 x ⅓

OF means - Which would you, personally, consider to be easier? Geometry or Algebra?
*By*:-Meike

From what I've heard, Geometry is more of a logic based part of mathematics whereas Algebra is more solid and factual. I'm not entirely sure if that's true, but I would like to hear your opinions. What do you find easier to do? - I do not understand where the negative in -sqrt x ^ 6 comes from?
*By*:-cidyah

- Find the values of the six trigonometric functions of θ for the right triangle with the given sides.
*By*:-Como

Supposing that side of length 1 is opposite ∅

sin ∅ = 1/√5

cos ∅ = 2/√5

tan ∅ = 1/2

.............2

sin θ = ----

...........√5

- Math Help (Fast Please)?
*By*:-Jeremiah

Emily and Miranda are standing outside. Emily is 5 feet tall and casts a shadow of 28 inches. Miranda s shadow is 29.4 inches long.

Approximately how tall is Miranda?

A: 5 feet

B: 5 1/4 feet

C: 5 1/2 feet

D: 6 feet - what is the next number in this sequence? 1,1,2,4,5,25?
*By*:-sharon

1 x 1 = 1

1+1 = 2

2 x 2 = 4

4+ 1 = 5

5 x 5 = 25

25 + 1 = 26

We can write it as

1, 1^2, 1+1, (1+1)^2, (1+1)^2 + 1, ((1+1)^2 + 1)^2 - What is the slope and y intercept if f(x) = 2x?
*By*:-logan

y = mx + c = f(x) , where m is a slope and c is an intercept .

now when f(x ) = 2x , meaning f ( x ) = y = 2x or = 2x +0 , so that 2 is a slope and intercept - Area of a triangle??? Heron’s formula???? what is the area of a triangular lot with sides of lengths
*By*:-unidentified

Thanks I appreciate your help - Math order of operations?
*By*:-Iggy Rocko

I have an equation -x^2 + 8

Let s assume x is 4

Is the answer going to be 8 or 24? - Does 3 1/5 + 4 5/6 equal 241/30 (as an improper fraction) , 8 1/30 (as a mixed number).?
*By*:-Milly

I feel i have done something wrong as it does not have the same answer as the calculator. I probably made a stupid mistake :') - What is the probability of rolling a 1 or a 3 whe rolling a six-sided die?
*By*:-Mimi

1/3

p(roll 1 or 3) =

p(roll 1) + p(roll 3) =

1/6 + 1/6 =

1/3

2/6 or 1/3 depends if your teacher wants it reduced

2/6

- anu is 4 year older than sunita.8 year before anu was 3 times age of sunita.find the age of sunita a
*By*:-sanjoo

______________Anu________Sunita

Present________x + 4_________x

8 years ago____x - 4________x - 8

x - 4 = 3 ( x - 8 )

x - 4 = 3x - 24

20 = 2x

x = - how many out put?
*By*:-pheap

so many

You need to post the whole question.

Waht

Usually every night but I have to give her a message first.

- WHAT IS STEP BY STEP 9 6/20-4 15/20=?
*By*:-sandra

9 6/20 - 4 15/20 =

10 26/20 - 4 15/20 =

6 11/20

8 + 26/20 - 4 - 15/20 = 4 11/20

.

9 6/20 - 4 15/20

Rewrite 9 6/20 as an improper fra - Is it only possible for a genius to pass calculus 1, 2, & 3?
*By*:-drake

Yes in my opinion. Calculus and Trig is AWFUL.

There aren't that many geniuses in the world.

Nope. Calculus might take a little work, but it's - Find all pairs of real numbers (x,y) such that x + y = 6 and x^2 + y^2 = 28.?
*By*:-Ryan

If you find more than one pair, then list your pairs in order by increasing x value, separated by commas. For example, to enter the solutions (2,4) and (-3,9), you would enter "(-3,9),(2,4)" (without the quotation marks) - Cotx-csc^2x/cotx?
*By*:-andreagaleria4

As written, you got:

cot(x) - (csc^2(x)/cot(x))

= (cot^2(x) - csc^2(x))/cot(x)

= -1/cot(x)

= -tan(x). (cot(x) - csc(x)sec(x) is OK.)

If - how are the equations y=mx=b and y=kx alike?
*By*:-kira

"y" really gets around, doesn't he?

y = x and some stuff to do to x is usually geometry.

If k = m and b = 0, they are exactly alike.

- what does cosine actually mean? (as opposed to 'how do you calculate it'!? TIA?
*By*:-S WEBB

Dear me. So many answers, but not one has the real meaning.

"Cosine θ" means the "complementary sine of the angle θ" which is shorthand for

the "sin - The sides of a square are two to the power of four ninths inches long. What is the area of the squar
*By*:-Thatsthe wayIcit

Area = 2^(4/9) x 2^(4/9) ins²

Area = 2^(8/9) ins²

[2^(4/9) inch^2

= 2^(8/9) inch^2

= 1.8517... inch^2

A = [2^(4/9)]*[2^(4/9)] = 2^(8/9 - the sum of a number and 20 divided by 8?
*By*:-chris

sum of a number and 20 =n+20

divided by 8 =(n+20)/8

Depends on whether it's the sum that is divided by 8 or 20 that's divided by 8.

If n is the num

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