RJ ran 5 miles after school. He ran the first mile in 8 minutes, the second mile in 9 minutes the third mile in 8 minutes, the fourth mile in 10 minutes, and the fifth mile in 9 minutes What was the average time it took RJ run one mile?

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

6 cm

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:

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: