Question 5 <
The sum of a number and its square is 72. Write a quadratic equation that models this scenario using a to
represent the number.
Solve the quadratic equation to find the numbers. The positive solution is
The negative solution is
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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.

Joanie watched 1 out of three of a movie in the morning

What is r i 4.5+10r=-6.5 with work pls