Answer:
65
73
Step-by-step explanation:
9^2 - 4^2
Exponents first
81 - 16
65
3^2 +8^2
Exponents first
9+64
73
He scored 3 goals in each game
Answer:
A prospective study
Step-by-step explanation:
A prospective study watches for outcomes, such as the development of a disease (in this case cancer). It also usually involves taking a group of subjects and watching them over a long period of time. The outcome of interest should be common between them (whether certain smoking habits lead to the development of cancer in British doctors).
Answer:
x = 26, y = 19
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
, substitute values
=
= 2 ( multiply both sides by 13 )
x = 26
and
=
, substitute values
=
=
( cross- multiply )
2y = 38 ( divide both sides by 2 )
y = 19