Permutations and combination math 30 question!

How many different combinations of 3 letters can be made using all 26 letters in the alphabet?

a) 15 600

b) 2600

c) 23

d) 69

Chas and Tyler have been collecting video games. Chas has 25 video games, and Tyler has mm video games. Together they have a total of 65 video games.

A triangular piece of rubber is stretched equally from all sides, without distorting its shape, such that each side of the enlarged triangle is twice the length of the original side. The area of the triangle to times the original area.

Estimate of 4367-1456

Are parallel lines inconsistent

Using the Pythagorean Theorem, give an example of three sides of a right triangle

Andrew bought a computer for $650 a printer for $135.89, and two printer cartridges for $28.79 each. How much did Andrew spend in all? Show your work and remember to include units.

Which equation, when solved, gives 8 for the value of x? O A + + = + 14 B. 1-9=31-12 C. 15-2="-4 OD 8 6 7 = 1 / + 14

Simplify. Remove all perfect squares from inside the square root. V450 = 1

Roger is renting a tuxedo for prom. Once he has chosen his jacket, he must choose from three types of pants, four colors of vests, and two different styles of shoes. How many different ways can he select his attire for the prom?

28/32 that equals 7/8