1.Scale Factor : 4 Enlargement or Reduction? →

G(4, -4) → G’

H(-6, 8) → H’

J(4, 6)→ J’

K(-8, -12) →K’

2.Scale Factor : 5/2

Enlargement or Reduction? →

A(6, -6) → A’

B(-10, -2) → B’

C(−8, −6)→ C’

D(4, 4) → D’

3.Scale Factor : 1/2

Enlargement or Reduction? →

L(−8, 8) → L’

M(0, 10) → M’

N(6, −4) → N’

Simplify the algebraic expression 8y-2(y+4)

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias

Darcy deposited $390 into a savings account. as long as the account balance remains at or above $150, she does not have to pay a service fee for the account. for how many months can she withdraw $40 a month without having to pay service fees? a) 3 b) 5 c) 6 d) 9