\begin{tabular}{|l|l|}\hline 4. A square has a perimeter of 28 units, an & 5. \\ area of 49 units \( { }^{2} \), and sides that are either & 100 \\ horizontal or vertical. Two of the vertices are & an \\ in quadrants where the \( x \)-value is negative. & pe \\ What are the possible coordinates of the & the \\ square? \end{tabular}

7. \( m \angle \mathrm{~A}=40^{\circ}, m \angle \mathrm{~B}=88^{\circ}, a=15 \) Find \( b \).

Use geometric formulas to find the unsigned area between the graph of \( y=f(x) \) and the \( x \)-axis over the indicated interval. \( f(x)=x+10 ;[2,11] \) The area between \( f(x) \) and the \( x \)-axis is (Type an exact answer, using \( \pi \) as needed.)

\( 1 \leqslant \quad \begin{array}{l}\text { Two gears are adjusted so that the smaller gear drives the } \\ \text { larger one, as shown in the figure. If the smaller gear } \\ \text { rotates through an angle of } 270^{\circ} \text {, through how many } \\ \text { degrees will the larger gear rotate? }\end{array} \)

В треугольнике \( A B C \) к стороне \( A B=6 \) см опущена высота, длина которой составила 22 см. Найди площадь этого треугольника и дай ттвет в квадратных сантиметрах.

find the center and radius of the circle \( x^{2}-2 x+y^{2}=3 \)