Answer:
RT = 20
Step-by-step explanation:
Given S is at the midpoint of RT , then
RS = ST , that is
7y - 4 = 2y + 6 ( subtract 2y from both sides )
5y - 4 = 6 ( add 4 to both sides )
5y = 10 ( divide both sides by 5 )
y = 2
Then
RT = RS + ST = 7y - 4 + 2y + 6 = 9y + 2 = 9(2) + 2 = 18 + 2 = 20
Answer:
base = 17.71 ft
height = 9.71ft
Step-by-step explanation:
Since we are not given the base and heigh directly, to answer this question we need two equations: (1) one to express the area (A) of a triangle, and (2) one describing the fact that height (h) and the base (b) lengths are related. Setting up and solving the system of these two equations for base leads to a quadratic equation:
which has two solutions but one is negative, i.e., not applicable. The good solution for base is .
Since we know the height is 8 ft less than the base, the height must be 9.71ft
Answer:
Step-by-step explanation:
common ratio= second term/first term
=
64, 16, 4, 1, ...
1*1/4 = 1/4
64, 16, 4, 1,<u> 1/4</u>