Answers: 2
Mathematics, 21.06.2019 21:00
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(1β0.2)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.
Answers: 1
Mathematics, 21.06.2019 23:50
4. (10.03 mc) the equation of line cd is y = β2x β 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = β2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 β 2x β 3
Answers: 2
Mathematics, 22.06.2019 01:00
What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?
Answers: 3
Mathematics, 22.06.2019 01:00
Hich polynomial correctly combines the like terms and expresses the given polynomial in standard form? 8mn5 β 2m6 + 5m2n4 β m3n3 + n6 β 4m6 + 9m2n4 β mn5 β 4m3n3
Answers: 3
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