9. Five siblings represented the money in their accounts using exponential functions. The amount of money in each account can be modeled by the following functions: Which of the functions represent exponential decay?
Adisola, Brianna, Webb
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15
11. Kiah put $15,000 in a savings account that earns 4.7% annual interest compounded quarterly. Write an equation that accurately represents Kiahโs total amount of money in the account after 4 years?
A
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trap
No points!
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rocket
Go to first place!
Okay!
rocket
Go to first place!
Okay!
baam
Lose 20 points!
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15
3. Simplify. Write your answer using only positive exponents
(y^1/6)/y^13
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banana
Go to last place!
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magnet
Take 25 points!
Okay!
fairy
Take points!
5
10
15
20
25
baam
Lose 10 points!
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15
6. Given the graph of y=1/2(4)^x, identify the asymptote
y = 0
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15
7. The bacteria in a sample quadrupled every hour. The sample started with 50 bacteria. Write an equation that represents the number of bacteria after t hours.
y = 50(4)^t
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monster
Reset all scores!
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rocket
Go to first place!
Okay!
rocket
Go to first place!
Okay!
thief
Give points!
5
10
15
20
25
15
5. Choose all the expressions that are equivalent to 7^(5/9)
A, B and D
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15
1. Evaluate the numerical expression 25^(1/2)
5
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15
4. Use the properties of exponents to create an equivalent expression for the given expression shown, with no variables in the denominator
(x^12)/375
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15
9. Five siblings represented the money in their accounts using exponential functions. The amount of money in each account can be modeled by the following functions: Which of the functions represent exponential growth?
Deandra, Eric
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15
12. Jules deposits $3,800 into an account that has an annual interest of 6.5% compounded semi-annually. How much will he have in his account after 4 years?