Calculus

12 = 3x, so x = 4

Replace sin2x with the equivalent (1 - cos2x). Simplify, and use the quadratic equation, to solve for cos x.

Replace sin2x with the equivalent (1 - cos2x). Simplify, and use the quadratic equation, to solve for cos x.

Replace sin2x with the equivalent (1 - cos2x). Simplify, and use the quadratic equation, to solve for cos x.

Replace sin2x with the equivalent (1 - cos2x). Simplify, and use the quadratic equation, to solve for cos x.

586,300,132

These are way easier then people make them... use picket fences and units of conversion:

So to do this procedure:


tfinal=? vo=40 mi/hr dfinal=365 ft


So take 40 and divide it by 60 min then divide again by 60 sec to get units into seconds. Then take this number and multiply by 5280 ft to get units in ft/sec. Now we now that 40 mi/hr = 58.66 ft/sec we can take our dfinal over 58.66 ft/sec to get a tfinal= 6.22 s.

Combine like terms

-3x+10x becomes (-3+10)x
which can be expressed as 7x
put the -5 back in and the simplified equation is
7x-5

You did not specify an = sign in the equation but if we make the equation = to 0 then we can take this farther.

7x-5=0

add 5 to both sides and we get

7x=5

divide both sides by 7 and we end up with

x=5/7

23 x 30 = 690

y=-4x+4
A good way is to give numbers for x and see what y is. I've done enough of these to see it in my head.
All you need is two points. The y-intercept is 4 because that's when x is 0. (0,4)
Then go right unit then down 4 and that's your next point.
0=-4(1)+4
Which is (1,0)

Connect the two lines

2s2+7s-15 = (2s-3)(s+5) when factored

That's going to completely depend on what 'x' is.

2x = 7x - 10

subtract the 7x from both sides

2x - 7x = -10

-5x = -10

divide both sides by -5

x = 2

-7

at a beach now called o`conner beach

you set it equal to zero

7x^2 + 7x - 14 = 0

since there is a common factor of 7, you can divide each term by that, including the zero on the other side, which just gives you zero again...

(x^2 + x - 2) = 0

You have to find two numbers that multiply to give you the coefficent of the third term (c = -2), and add to give you the coefficient of middle term (b = 1)

so, +2, and -1 add to give you +1 (b), and multiply to give you -2 (c).

so the factors are:

x+2 and x-1

(and therefor the roots are x= -2, and x =1, but you just asked for the factors)

(x-5)/2

∫ 1/sinh2(x) dx = -cotanh + C

C is the constant of integration.

What do you mean by "solve"? This is not an equation.

2x + 3 = 6

2x = 3

x = 3/2 = 1.5

There is one simple way to find the answer to this.

The x-intercept occurs when y = 0 as this is the equation of the x-axis. Along the x-axis, the value of the y is always zero.

There fore you can take the value y = 0, substitute into the equation and then solve for x.

e.g.

5x - 4 x 0 = 18

5x = 18

x = 3.6

Hence the x-intercept is when y = 0 and x = 3.6

This method also translates to how to find the y-intercept. The only difference is that you substitute x = 0 into the equation.

24 and 9

Definitely! In fact, it's way more common for the scales to differ than be equal. For instance, the equation y=x^2 is curved (a parabola in fact). Well, there's nothing stopping you from scaling the y axis down by its square root, assuming you clearly label it that way, so that the graph is linear.

newly made logs from trees basicaly

You would do it it by oppisites. 3+2+4=9 which equals C.

x = 9 and y = 28

Multiply it out, and you will get volume.

pi x 1.75200 x 240 = 1,320.97688