8. By one estimate, 3% of all Siberian Husky puppies are born with two different
colored eyes (called heterochromia iridum). For random samples of 50 Siberian
Husky puppies, what are the mean and standard deviation of the number of
puppies that will have two different colored eyes?
(A) je = 0.03, 0 = 0.024
• B) = 0.03,0 = 0.0171
©4=1.5,0 = 1.206
D) 4 = 1.5, 0 = 1.455
(B) = 3,0 = 50

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?