Q19 of 47 Page 1

Solve for

We use the quadratic formula to calculate the value of x


Putting the values in the equation we get



⇒



⇒


⇒


Answer: The two roots are -1.56 & 0.56


More from this chapter

All 47 →
17

Water in a canal 6 m wide and 1.5 m deep, is flowing with a speed of 10 km/h. How much area will it irrigate in 30 minutes, if 8 cm of standing water is needed for irrigation?

 18

In Fig. 4, ABCD is a trapezium with AB || DC and BCD = 30°. If BGEC is a sector of a circle with center C and AB = BC = 7 cm, DE = 4 cm and BF = 3.5 cm, then find the area of the shaded region (use ).


(Fig. 4)

 20

Rampal decided to donate canvas for 10 tents, conical in shape with base diameter 14 m and height 24 m to a center for handicapped persons’ welfare. If the cost of 2 m wide canvas is Rs. 40 per meter, find the amount by which Rampal helped the center.

 21

Solve for