Write the explicit formula for an arithmetic formula whose tenth term is 75.

The first term of the sequence is 0

And for the terms you add 7.5 to the previous term

And term number x: written U(x)= 0+75x

Term number ten is 0 plus ten times 7.5 which equals 75.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,