Which pair of statements is true?
O 5¢ A; 5 € B
O 6 € A; 6 & B
O 8¢ A; 8 EB
O 9 € A; 9¢ B

h/o/e/s mad

step-by-step explanation:

si si si

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n