Suppose that 40 batteries are shipped to an auto parts store, and that 4 of those are defective. A fleet manager then buys 8 of the batteries from the store. In how many ways can at least 3 defective batteries be included in the purchase?

What is the inverse operation of add 18

If ef = 19 and fg = 12 then ef = ?

Elmer is on a Ferris wheel which has a diameter of 180 ft and whose center is 120 ft off the ground. Find all of the angles θ such that 0≤θ≤3π and such that Elmer's carriage is at a height of 165 ft when it makes an angle of θ with the horizontal.

4 students is 20% of 20 students is it correct

What is tha answer to 3 2/5 = ?/5

If you flip a fair coin 4 times, what is the probability that you will get exactly 2 tails?

A hot air balloon begins it's descent at a rate of 22 1/2 feet per minute. how long will it take for the balloons elevation to change by - 315? feet

Curtis charges a flat fee of $2.50 for each delivery plus $0.20 per mile for each mile he drives. For one delivery, Curtis drives 6 miles. How much does Curtis charge to deliver the food?

Y=5x+20 Y=-7x-16 Solve each system by substitution

what kind of growth model (pattern) is showen in the table x 1, 2, 3, 4, 5 y 5, 25, 125,635,3,125