A single die is rolled. Find the probability of rolling an odd number or a number less than 4.

How much force would you need to cause a 20-kilogram object to accelerate in a straight line to 20 m/s^2?

Solve the equation.

$$\sqrt { x + 6 } - \sqrt { 2 x - 4 } = 0$$

The trifecta at most racetracks consists of selecting the first-, second-, and third-place finishers in a particular race in their proper order. If there are seven entries in the trifecta race, how many tickets must you purchase to guarantee a win?

The last 30 boat rentals in Green Lakes Boat Rentals were 14 sunfish, 10 kayaks, and 6 rowboats. Use this information to determine the empirical probability that the next rental is a (a) Sunfish. (b) Keyak. (c) Rowboat.

A bag contains five batteries, all the same size and equally likely to be selected. Each battery is a different brand. If you select three batteries at random, use the counting principle to determine how many points will be in the sample space if the batteries are selected (a) With replacement. (b) Without replacement.

Given a family with three children, determine the probability of each event.

The youngest two are girls, given that there are at least two girls.

Determine the inverse Laplace transform $f(t)$ of the function $F(s)= \frac{5}{s^{2}+s-6}$.

You are dealt one card from a 52-card deck. Find the probability that you are not dealt a red picture card.

For the experiment of rolling an ordinary pair of dice, find the probability that the sum will be even or a multiple of $3$. (You may want to use a table showing the sum for each of the $36$ equally likely outcomes).

Fill in the blank with an appropriate word, phrase, or symbol(s). If the probability that an event will occur is 2/3 then the probability that the event will not occur is 1/3, and the odds in favor of the event occurring are _.

A fair die is tossed. Determine the odds against rolling a number greater than 4.

Make an order-of-magnitude estimate of the quantity. -The width of the smallest object that can be located using sound in the range of human hearing.

Find the solution of the equation if the replacement sets are x: {1, 3, 5, 7, 9} and y: {6, 8, 10, 12, 14}. 4y = 32