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Using PEMDAS, solve for parentheses first, in this case being -5+9. You will get 4. Next, multiple 40 by 4 to get 160. Finally divide -800 by 160 to get the solution of -5.

It's morphing time!

To explain the answer, divide 100 by 50 to get 2. Multiply the numerator and denominator by 2 to get 66/100. A percentage is a number out of 100 thus giving you 66%.

It's morphing time!

test score is 66%

       ---------------------------

-2     1    -1     -8       12

              -2      6         4

        ---------------------------

        1    -3     -2        16

So.......-2 is not a root of x³ - x² - 8x + 12

its the x with the litte 2

if u make an acount we can help u even more so check it out its free

no one actuly really knows evrey thing about math but if u would like to please ask more spicific questions i and lots of others would love to answer ur questions 

The "formula" for the original surface area of the cone is given by:

A_c = pi*R*L     where R is the radius and L is the slant height length

So, if the radius is quadrupled and the slant height is reduced tio 1/6th of its original value, we have

A_c = pi*(4)R*(1/6)L = (2/3)pi*R*L

the answer is 82400

go to the ten with the x go  over it then it has an e with a little x that should help :)? i hope sorry if it dont

 2x - 3y    = 3 

  x  + 3y   = 10 

Let's just add both equations....this gives us

3x = 13       divide both sides by 3

x = 13/3      substitute for "x" into one of the equations to find "y"

13/3 + 3y = 10     subtract 13/3 from both sides

3y = 17/3             divide both sides by 3

y = 17/9

So, the solution is (13/3, 17/9)

8y-3 = 15 + 2y    subtract 2y from both sides and add 3  to both sides

6y = 18               divide both sides by 6

y = 3

Simplifying what Anonymous said, we have

y+5=(-7/2)(x+1)

y + 5 = (-7/2)x - (7/2)   subtract 5 from both sides

y = (-7/2)x - (17/2)

And that's in slope-intercept form

y+5=(-7/2)(x+1)

DS gave an approximate answer, which, in most cases, is good enough.....!!!!!

We can also give an "exact" answer....

√180 = √ (36*5) = 6√5

just use the divison sign

4x³ + 4x² = x + 1;   [−2, 2]

4x³ + 4x² = x + 1          rearranging, we have

4x³ + 4x² - x - 1 = 0       factor  this

4x² (x + 1) -1(x+1) = 0      take out the common factor

(x + 1) (4x² - 1) = 0        factor again

(x+1) (2x + 1)(2x - 1) = 0

And setting each factor to 0, we have that .....  x = -1  ....  x= -1/2 (= -.50)  and  x = 1/2 (= .50)

And all of the solutions are within the given interval.....!!!

mgh=mv^2/2   divide both sides by m

gh = v²/ 2       multiply both sides by 2

2gh = v²         take the square root of both sides

±√(2gh)  = v

16 500 000 000 000 000 000 000 000

If 2 divides p², then p² must be even. But, if p² is even, then p must be even, and 2 divides any even number. Thus, 2 divides p......!!!!!

3x^3 - 21x^2 - 50x + 220 = 0

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