Physics students are studying the effects of the temperature, T, on the speed of sound, S. They find that the speed of sound in meters per second is a function of the temperature in degrees kelvin, K, by S(K)=410K. The degrees kelvin is a function of the temperature in Celsius given by K(C)=C + 273.15. Find the speed of sound when the temperature is 30 degrees Celsius

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)