There are 10 blue marbles, 4 red marbles and 8 yellow marbles in a bag. John draws three marbles without replacement. What is the probability the first two marbles are yellow and the third is red?

3/12

Step-by-step explanation:

There are 22 marbles in all so the probability would be

3/22 but we are looking at specific colors so add the red and yellow marbles together and you should get 3/12

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:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).