James lives in san francisco and works in mountain view. in the morning, he has 3 transportation options (bus, cab, or train) to work, and in the evening he has the same 3 choices for his trip home. if james randomly chooses his ride in the morning and in the evening, what is the probability that he'll take the same mode of transportation twice?

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

the radius is 2 times the diameter.

step-by-step explanation:

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: