A biologist isolates two strains of a particular virus and monitors the growth of each, starting with samples of 0.02 grams. Strain A increases by 10% in 8 hours, and strain B increases by 13% in 11 hours. (a) How much did the sample of strain A weigh after 8 hours?
(Round the answer to four decimal places. Your answer must include units to receive full credit.)

(b) What was the hourly growth factor for strain A?
(Round the answer to four decimal places.)

(c) How much did the sample of strain B weigh after 11 hours?
(Round the answer to four decimal places. Your answer must include units to receive full credit.)

(d) What was the hourly growth factor for strain B?
(Round the answer to four decimal places.)

(e) Which strain of virus grows more rapidly? A or B

In δabc shown below, ∠bac is congruent to ∠bca: triangle abc, where angles a and c are congruent given: base ∠bac and ∠acb are congruent. prove: δabc is an isosceles triangle. when completed (fill in the blanks), the following paragraph proves that line segment ab is congruent to line segment bc making δabc an isosceles triangle. (4 points) construct a perpendicular bisector from point b to line segment ac . label the point of intersection between this perpendicular bisector and line segment ac as point d: m∠bda and m∠bdc is 90° by the definition of a perpendicular bisector. ∠bda is congruent to ∠bdc by the definition of congruent angles. line segment ad is congruent to line segment dc by by the definition of a perpendicular bisector. δbad is congruent to δbcd by the line segment ab is congruent to line segment bc because consequently, δabc is isosceles by definition of an isosceles triangle. 1. corresponding parts of congruent triangles are congruent (cpctc) 2. the definition of a perpendicular bisector 1. the definition of a perpendicular bisector 2. the definition of congruent angles 1. the definition of congruent angles 2. the definition of a perpendicular bisector 1. angle-side-angle (asa) postulate 2. corresponding parts of congruent triangles are congruent (cpctc)

20 ! need ! which exponential function is represented by the table? f(x) = 0.2(0.5x)f(x) = 0.5(5x)f(x) = 0.5(0.2x)f(x) = 0.2(0.2x)

$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?