The perimeter of a rectangle is 70 m and the length is 15 m longer, than the width. Find the dimensions of the rectangle. Let \( x= \) ength and \( y= \) width. \[ 2 x+2 y=70 \] \[ x-y=15 \] Graph the linear equation into two slope - intercept forms and give the solution, if any. \[ y=\square x+\square \] \( y=\square x+\square \)

Given the functions: \[ f(x)=5 x \quad g(x)=|x+4| \quad h(x)=\frac{1}{x+6} \] Evaluate the function \( (f-g)(x) \) for \( x=-2 \). \[ (f-g)(-2) \text { is } \]

(3. Completa.

Un quadrato è equivalente ai \( 9 / 4 \mathrm{di} \) un al- tro quadrato avente il lato lungo 14 cm . Calcola il perimetro dei due quadrati. [56 cm; 84 cm ]

d the derivative of \( \mathbf{r}(t)=\left\langle t^{2} \sec \left(2-t^{3}\right), \frac{\cos t}{1+\sin t}\right\rangle \)

Vervollständige Maries Rechnung. \[ \begin{aligned} f^{\prime}(x) & =\lim _{h \rightarrow 0} \frac{(x+h)^{2}-x^{2}}{h} \\ & =\lim _{h \rightarrow 0} \frac{x^{2}+2 \cdot x \cdot h+h^{2}-x^{2}}{h} \\ & =\lim _{h \rightarrow 0}(2 x+h) \\ & =\square\end{aligned} \]