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Fill in the blank:
In business, __________ is used to find profit and loss for the future of the investment using graphs.
distance
displacement
differentiation
Is the sentence true or false?
Differential equations model are available to control a particular species' population dynamics.
True
False
A stone is dropped into a quite pond and the waves moves in circles. If the radius of the circular wave increases at the rate of 8 cm/sec, find the rate of increase in its area at the instant when its radius is 6 cm?
2π cm2sec2\pi\ \frac{cm^2}{\sec}2π seccm2
9 cm2sec9\ \frac{cm^2}{\sec}9 seccm2
96π cm2sec96\pi\ \frac{cm^2}{\sec}96π seccm2
The rate of change of the area of a circle with respect to its radius rrr when r=6 cmr=6\ cmr=6 cm is 12π cm12\pi\ cm^{ }12π cm.
A spherical soap bubble is expanding so that its radius is increasing at the rate of 0.02 cm/sec. At what rate is the surface area is increasing when its radius is 5 cm?
2.1512 cm2sec2.1512\ \frac{cm^2}{\sec}2.1512 seccm2
6.1512 cm2sec6.1512\ \frac{cm^2}{\sec}6.1512 seccm2
4.1512 cm2sec4.1512\ \frac{cm^2}{\sec}4.1512 seccm2
__________ is used to calculate the rate of change of distance of a moving body with respect to time.
integration
addition
The length x of a rectangle is decreasing at the rate of 5 cm/minute and the width y is increasing at the rate 4 cm/minute. When x=8 cm and y=6 cm then find the rate of change of the area of the rectangle.
6 cm/minute
3 cm/minute
4 cm/minute
Temperature variations are calculated by using differentiation.
The ____________ equation of the same type determines a circuit consisting of an inductance L or capacitor C and resistor R with current and voltage variables.
differential
integral
None of these
Newton's second law of motion is used to describe the motion of the pendulum from which a differential equation of second order is obtained.
It is done.