The bar chart above shows the allotment of time (in minutes) per week for selected subjects in a certain school. What is the total time allocated to the six subject per weeks?

$\text{Evaluate }\int_{0}^{\tfrac{\pi }{4}}{\sin xdx}$

$\begin{align}  & \text{Integrate }\left( \frac{1+x}{{{x}^{3}}} \right)dx \\ & \text{(A) }-\frac{1}{2{{x}^{2}}}-\frac{1}{x}+k\text{  (B) }-\frac{{{x}^{2}}}{2}-\frac{1}{x}+k\text{   (C) }{{x}^{2}}-\frac{1}{x}+k\text{   (D)  }2{{x}^{2}}-\frac{1}{x}+k \\\end{align}$

$\begin{align}  & \text{The radius of a circle is increasing at the rate of 0}\text{.02cm}{{\text{s}}^{-1}}.\text{ Find the rate at which the area is } \\ & \text{increasing when the radius of the circle is 7cm} \\ & \text{(A)  0}\text{.88c}{{\text{m}}^{2}}{{s}^{-1}}\text{  (B) }0.75c{{m}^{2}}{{s}^{-1}}\text{ (C) }0.53c{{m}^{2}}{{s}^{-1}}\text{ (D) }0.35c{{m}^{2}}{{s}^{-1}} \\\end{align}$

$\begin{align}  & \text{If }y=x\sin x,\text{ find }\frac{dy}{dx} \\ & \text{(A) }\sin x+x\cos x\text{ (B) }\sin x+\cos x\text{ (C) }\cos x-x\sin x\text{  (D) }\cos x+x\sin x \\\end{align}$

$\begin{align}  & \text{If }y={{(2x+2)}^{3}},\text{ find }\frac{dy}{dx} \\ & (A)\text{ }6{{(2x+2)}^{2}}\text{ }(B)\text{ }3{{(2x+2)}^{2}}\text{ }(C)\text{ }6(2x+2)\text{    }(D)\text{ }3(2x+2) \\\end{align}$

If $\tan \theta =\tfrac{3}{4}$,  find the value of  $\sin \theta +\cos \theta$

In a triangle PQR, q =8cm,r = 6cm and$\cos P=\tfrac{1}{12}$. Calculate the value of p

Find the equation of the perpendicular bisector of the line joining P(2,-3) to Q(-5,1)

If the mid point of PQ is (2,3) and the point P is (-2,1). Find the coordinate of the point