 Algebra 2--PARCC
Save
Edit
Host a game
Live GameLive
Homework
Solo Practice
Practice 4 QuestionsShow answers
• Question 1
180 seconds
Report an issue Q.

This equation models the decay of 7.35 grams of a substance with a half-life of 2 days. Write an equivalent equation without a fractional exponent.

R( d )=

7.35(0. 250 )d.with a decay rate of 25%

R( d )

=7.35(0. 70 7)d with a decay rate of 70.7%

• Question 2
60 seconds
Report an issue Q.

The graph represents the temperature of tea for the first 120 min after it is poured into the cup.

The tea started at 204 degrees and approached 114 degrees over time

The tea started at 204 degrees and approached 68 degrees over time

The tea started at 221 degrees

The tea started at 204 and approached 34 degrees over time.

• Question 3
180 seconds
Report an issue
Q.

A bank offers a savings account that accrues SIMPLE interest annually based on an initial deposit of \$500. If S(t) represents the money in the account at the end of t years and S(5)=575,write a function that could be used to determine the amount of money in the account over time

S(t) = 500 + 15t

S(t) = 15(500)t

S(t) = 500(15)t

• Question 4
300 seconds
Report an issue Q.

Decide if the population growth is linear or exponential and find the equation.