Answers created by Iván Á.

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A jogger runs in a straight line with an average speed of 5 m/s for 4 minutes, then finishes with an average speed of 4 m/s for 3 minutes. What is his total displacement?
What is the norm of $< 5, - 2, 3 >$ $< 5 , -2, 3 >$ ?
How much work would it take to push a $1 k g$ $1 kg$ weight up a $2 m$ $2 m$ plane that is at an incline of $\frac{5 π}{12}$ $(5pi) / 12$ ?
What is the average speed of an object that is still at $t = 0$ $t=0$ and accelerates at a rate of $a (t) = 3 t - 1$ $a(t) =3t-1$ from $t \in [2, 3]$ $t in [2, 3]$ ?
How do you find the amplitude and period of $y = \frac{4}{3} sin (\frac{2}{3}) x$ $y= 4/3 sin (2/3)x$ ?
How do you find the vertex of a parabola $y = y = {[x]}^{2} - 5$ $y=y=[x]^2-5$ ?
How do you write 70 million in scientific notation?
Question #c8c7c
How do you solve $\frac{y + 2}{4} - \frac{y - 1}{5} = 15$ $( y+2)/4 - (y-1)/5 =15$ ?
How do you differentiate $(2 x^{2} - 4 x + 4) e^{x}$ $(2x^2-4x+4)e^x$ ?
How do you find the solution to the quadratic equation $x^{2} + 8 x + 7 = 0$ $x^2+8x+7=0$ ?
What is the period and amplitude and frequency for $s = 3 cos 5 t$ $s = 3 cos 5t$ ?
How do you find the limit of $x^{2} cos (\frac{π}{x})$ $x^2cos(pi / x)$ as x approaches 0?
In the right triangle ABC, angle C equals 90 degrees. If angle B is 63 degrees, what is the measure of angle A?
How are mass and weight related?
How do electrons move in AC circuit?