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this is a site to help studewnts learn.  Putting ASAP is a derterant to many serious answerers.

The question is a nonsense question.

Maybe your teacher should go to some English language classes.

base height = sqrt(15² - 12²) = 9 cm

24x9 will do for both ends

30x30  the top 

30x24  the bottom

total = 1836 cm²

I believe that you simply need to find the LCM of the 3 numbers. Since they are all primes, the LCM(13,17,19)=13*17*19=4199.

You then need to find 4199 divided by each of the numbers, giving you the values of x, y, and z. These should be the lowest values. Add them up and you should have your answer.

Let me know if I did anything wrong!

I believe this requires the use of Partial Fraction Decomposition:

As the denominators of the two fractions on the RHS are factors of the denominator on the LHS, you can multiply both sides by x^2-7x+10. You are left with A(x-5) + B(x-2) = 5x+16. You can plug in 5 for x to cancel out A and solve for B. Similarly, you can plug in 2 for x to cancel out B and solve for A. 

Let me know if I did anything wrong!

First of all, if we have a trapezoid with bases BC and AD, then DB would be a diagonal. And DBA is the same angle as ABD, so they can't be different angles. In your problem, it says DBA = 105, and ABD = 43, but they are the same angle and 105 is not equal to 43. I think what you might mean is that the 3 interior angles of the trapezoid are 105, 43, and 147 degrees.

If that is so, then angle CBD is 360 - (105 + 43 + 147) = 165 degrees.

Also that wouldnt be a trapezoid. 

Perimeter of triangle BDP = 4 + 2√3

If f(0)=0 then 0=a(0)^2+b(0)+c, which means that c=0
If f(1)=2 then 2=a(1)^2+b(1), which means that a+b=2

If f(2)=-5 then -5=a(-5)^2+b(-5), which means that 25a-5b=-5, which means that b+5a=1

Solve the system of equations.

b+5a=1

b+a=2

4a=-1

a=-1/4

Solve for b and then plug in 3 for x. You should get your answer. Let me know if I did anything wrong!

You could observe it, if it is solid, it would have a solid form and you could feel it and it would be hard, if its liquid it would be oozy or drip around, and you could put your hand through it, if it is a gas you can see it, or smell it. To know what a specific element is at, at room temperature, you can either search it up, or do an experiment. And sometimes it just is hard to tell. 

Science related questions 

ok I do not have the answer but I do have a diagram.

There are 2 different circles that meet this disecription

The little one has centre C1 and the big one centred at C2

2/x + 2/y = 30     Multiply this equation by xy (both sides)

2y  + 2x = 30 xy

2 ( x+y) = 30 xy

1/15 ( x+y) = xy
x + y = 10     <==== (given)
   1/15 ( 10) = xy

       2/3 = xy

Since there are 5 dice, there are 6⁵ = 7776 possible outcomes.

To find the number of ways that there will be at least one pair, find the number of ways that there are

no pairs and subtract this from the number of possible outcomes.

To have no pairs: there are 6 possibilities for the first die, 5 possibilities for the second die,

4 possibilities for the third die, 3 possibilities for the fourth die and 2 possibilities for the fifth die.

Multiplying these together, there is a total of 720 possibilities that there will be no pair.

7776 - 720 = 7056 ways to have at least one pair.

The probability is:  7056 / 7776.

Since there are 360^o in the circle and arc(XY) = 170^o and arc(VW) = 120^o,

there is a total of 170^o + 120^o = 290^o in these two angles (combined);

this means left over for arc(XV) and arc(WY) (combined).is 360^o - 290^o  =  70^o.

Let x = arc(WY)     --->      then arc(XV) = 70^o - x

Since angle(U) is an angle in the exterior of the circle:  [ x - (70^o - x) } / 2  =  30^o.

Solving,  x = 65^o.

x(x + 6) > 16 + 4x      expand L side

x^2 + 6x > 16 + 4x     subtract 4x from both sides of the inequality   and subtract 16 from both sides

x^2 + 2x - 16 > 0         Use Quadratic Formula to find       -1 - sqrt(17) >  x >  -1 + sqrt (17)

(2x + 7)(x + 43) = -5 + jx     expands and simplifies to

2x^2 + 86x + 7x + 301  - jx  + 5 = 0 

2x^2 93x-jx + 306  = 0

If the disciminant = 0 then there is only one solution

(b^2) - 4ac = 0

(93-j)^2 - 4( 2)(306) = 0

8649 - 186j + j^2  - 2448 = 0

j^2 -186j + 6201  = 0                           Use quadratic Formula to find j = 93+- 12 sqrt(17)

When the ball hits the ground  ,  h = 0

0  =  -16t^2 - 24 t + 180

Use Quadratic Formula with  a = -16    b  = -24    c = 180

\(t = {-(-24) \pm \sqrt{(-24)^2-4(-16)(180)} \over 2(-16)}\)

to calculate 't'    (Hint: it is NOT 3.6 sec )   ==== throw out the negative 't' value

Hi, I think these are the correct answers...

1. (2x, 6y)

2. (7x, -7/4y)

3. (-2/3x, 4/3y)

You can expand your exponents in the expression. 

The * symbol stands for multiplication.

x^2/x^9 = 1*x*x / x*x*x*x*x*x*x*x*x

The variables in red will cancel eachother out as they divide to 1.

1*x*x / x*x*x*x*x*x*x*x*x

After the division, 1 remains in the numerator and x^7 remains in the denominator.

Final answer:

1/ x^7

b - a = 12.

The answer is t = 3.6.

1) The center is (10,12) and the radius is 4, so the answer is 10 + 12 + 4 = 26,

2) a = 2.

First, you will need to pick two points from the graph and label one of them (x₁, y₁) and the other (x₂, y₂)

  If you choose the point (0, 3) to be (x₁, y₁), then  x₁ = 0  and  y₁ = 3

  If you choose the point (1, 5) to be (x₂, y₂), then  x₂ = 1  and  y₂ = 5.

Second, use these values in the slope equation:  m  =  ( y₂ - y₁ ) / ( x₂ - x₁ )  to find the slope of the line.

Third, note that the y-intercept occurs at (0, 3), so you now know the value of b (the y-intercept).

Use the slope-intercept form of a line:  y  =  mx + b  to get an equation for the line.

Last, rearrange this equation to place it into standard form.

Angle(ADC) = 90^o.

Angle(CDB) = 30^o.

In triangle(CDB), side DC = sqrt(3) · side(BC)  =  sqrt(3) · sqrt(3)  =  3

Perimeter = sqrt(3) + 3 + sqrt(3) + 3  =  ...

I think you put E-8 Hope this is helpful!

To "complete the square" when the coefficient of the x² term is 1:

    divide the coefficient of the x-term by 2            (8 / 2  =  4)

    square this answer                                            (4²  =  16)

So, the answer is  16.