What is the every-day use of a derivative?
To find the rate of change.
Velocity, for example, is the rate of change of distance - in a specified direction. Acceleration is the rate of change of velocity.
How do you solve Sin x sec x equals tan x?
Cos x = 1 / Sec x so 1 / Cos x = Sec x
Then
Tan x = Sin x / Cos x = Sin x * (1 / Cos x) = Sin x * Sec x
What is x if 4x plus 3.6 plus x equals 1.2?
4x + 3.6 + x = 1.2
5x = 1.2 - 3.6
5x = - 2.4
x = - 2.4 / 5
x = - 0.48
What is the factorization of -2x3 - 2x2 plus 12x?
-2x3 - 2x2 + 12x
= -2x(x2 + x - 6)
= -2x(x2 - 2x + 3x - 6)
= -2x[ x(x - 2) + 3(x - 2) ]
= -2x(x + 3)(x - 2)
What is the x-intercept of 2x-3y equals 12?
you just put 0 in for Y and solve for x.
So 2x-3(0)=12, so x=6.
-5x -23 + 3x = -27
Combine like terms:
-2x - 23 = -27
Add 23 to each side:
-2x = -4
Divide each side by -2:
x = -4/-2
x = 2
How do you put 4x - 3y equals -7 in y equals mx plus b form?
4x - 3y = -7
Change all signs: -4x + 3y = 7
Add 4x to both sides: 3y = 4x + 7
Divide both sides by 3: y = (4/3)*x + 7/3
m = 4/3, b = 7/3
What is -6y plus 7x equals -9?
It's the equation of a straight-line graph. Every point on the line is
a solution of the equation. There are an infinite number of them.
What is 1 over 15 plus 3 over 5?
To answer this question, first find a common multiple of 3 and 5. Because 5*3=15, multiply 3/5 by 3/3 (one) to get 9/15. Now just add 9/15+1/15 to get 10/15, which can be reduced to 2/3.
Hope this helps!
What is the product of 6 x 6 x 7 x 7 x 9 x 9 in exponential form?
6^2 * 7^2 * 9^2
36 * 49 * 81
= 142,884
72
How do you factor 2x2 plus 10-9x equals 0?
2x2 + 10 - 9x = 0 or 2x2 - 9x + 10 = 0
So (x - 2)*(2x - 5) = 0
What is the answer to -12x equals 72?
We'll go ahead and find the answer, even though we're not completely convinced
that you know what the question is.
-12x = 72
Divide each side of the equation by -12:
x = -6
How do you plot 3x minus 4y equals 4?
Put it into slope intercept form and then proceed to use your favorite method of graphing.
slope-intercept:
y = -3x + 1