Extended Response 12. For every metre a scuba diver dives below the water surface of a lake, the
light intensity is reduced by 5%. The percent of light intensity can be
represented by the equation I = 100(1.- 0.05), where I is the intensity of
light, as a percent, and d is the depth of the dive, in metres. The intensity
of light at the surface of the lake is 100%. Austin wanted to determine the
light intensity at a depth of 3 m. His solution is shown below.
I = 100(1 - 0.05)d
I = 100(1 - 0.05)3
I = 100(13 - 0.053)
I = 100(0.999875)
I 100
Austin realized that it is not possible for the light intensity to be
approximately 100% at a depth of 3 m. Explain where Austin made his
mistake.

Write 17/20 as a decimal and as a percent.

Gexpressions: practice question 3 of 5 jackson wants to study the popularity of his music video by tracking the number of views the video gets on his website. the expression below represents the total number of views that jackson's video receives n days after he begins tracking the nu views, where b is the rate at which the number of views changes. alb)" select the statement that would accurately describe the effect of tripling a, the initial number of views before jackson beginst the rate at which the number of views changes, b, will triple. the total number of views the video has after n days, a(b)", will not change. the total number of days since jackson begins tracking views, n, will be reduced by one-third. the total number of views the video has after n days, alb)", will triple. submit

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.