Write the ratio as a fraction in simplest form. 28. 18 girls to 27 boys

Suppose you select a card from a standard deck of 52 playing cards. In how many ways can the selected card be a queen or a heart?

A manufacturer knows that on average 20% of the electric toasters produced require repairs within 1 year after they are sold. When 20 toasters are randomly selected, find appropriate numbers x and y such that (a) the probability that at least x of them will require repairs is less than 0.5; (b) the probability that at least y of them will not require repairs is greater than 0.8.

Two charges,

$$- 16 \text { and } + 4.0 \mu \mathrm { C }$$

are fixed in place and separated by 3.0 m. At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the positive charge.

Determine a and k so the given points are on the graph of the function. (-3, 2), (0, 11); y = a(x + 2)^2 + k

Complete the analogies below by determining the relationship between the first pair of words within the inverted comma and then deciding which vocabulary word best completes the second part within the inverted comma of the analogy. Write the word on your paper: 'Care' is to 'careful' as ______ is to 'essential'.

Identify the following term or individual and explain their significance. Social Security Act

Write the ratio as a fraction in simplest form. 36 to 9

A female parrot that weighs 13.44 ounces has a chick that weighs 0.56 ounces. How many times the chick’s weight is the weight of the mother?

Find the geometric mean of the two numbers. 24 and 45

Solve the equation. Check you solution. 15. -14 = 6c

A tank of helium is stored at 273 K and 10 atm of pressure. The tank is moved into a room at 293 K. What is the new pressure of the helium? Assume no change in volume or mass.

Solve the equation. Check your solution: g/10 = -9

Describe two ways to find the surface area of a rectangular prism.