The function below models the voltage, in volts, of a certain alternating-current circuit after x seconds, where a and b are positive constants. f(x)=acos(bx) assume the expression inside the cosine function is measured in radians. what is the largest value of c such that when the voltage function's domain is restricted to the interval [0,c] , the function is invertible? use the on-screen keyboard to type the answer in the box below.

5x+2x=49

7x=49

x=7. 35 apples

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

16.80 times .20= 3.36

step-by-step explanation: