Write a function for the following statement. Scientists studied the population of a species of bats in some caves in Missouri from 1983 to 2003. In 1983, there were 185,600 bats living in the caves. That number decreased by about 11% annually until 2003.

f ( x ) = 185 , 600 ( . 89 ) x f\left(x\right)=185,600\left(.89\right)^x f ( x ) = 1 8 5 , 6 0 0 ( . 8 9 ) x

f ( x ) = − 0.89 x + 185 , 600 f\left(x\right)=-0.89x+185,600 f ( x ) = − 0 . 8 9 x + 1 8 5 , 6 0 0

f ( x ) = − 0.11 x + 185 , 600 f\left(x\right)=-0.11x+185,600 f ( x ) = − 0 . 1 1 x + 1 8 5 , 6 0 0

f ( x ) = 185 , 600 ( 0.11 ) x f\left(x\right)=185,600\left(0.11\right)^x f ( x ) = 1 8 5 , 6 0 0 ( 0 . 1 1 ) x

What equation matches the table?

y = 7 ( 3 x ) y=7\left(3^x\right) y = 7 ( 3 x )

y = 3 ( 7 x ) y=3\left(7^x\right) y = 3 ( 7 x )

y = 3 x + 7 y=3x\ +7 y = 3 x + 7

Which equation matches the table?

y = 5 ( 2 x ) y=5\left(2^x\right) y = 5 ( 2 x )

y = 2 x + 5 y=2x\ +\ 5 y = 2 x + 5

y = 5 x + 2 y=5x\ +\ 2 y = 5 x + 2

y = 2 ( 5 x ) y=2\left(5^x\right) y = 2 ( 5 x )

Which equation matches the table?

y = 5 ( 2 x ) y=5\left(2^x\right) y = 5 ( 2 x )

y = 2 x + 5 y=2x\ +\ 5 y = 2 x + 5

y = 5 x + 2 y=5x\ +\ 2 y = 5 x + 2

y = 2 ( 5 x ) y=2\left(5^x\right) y = 2 ( 5 x )

Exponents Quiz

Authored by Amirah Little

Mathematics

7th Grade

CCSS covered

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MULTIPLE CHOICE QUESTION

15 mins • 2 pts

Simplify: $3n^5\cdot5n^{10}$

$15n^5$

$8n^{15}$

$15n^{50}$

$15n^{15}$

Tags

CCSS.HSA.APR.A.1

MULTIPLE CHOICE QUESTION

15 mins • 2 pts

$\left(2x^2y\right)^3$

$6x^5y^{\text{4}}$

$8x^6y^3$

$5x^5y^3$

$6x^6y^3$

Tags

CCSS.HSA.APR.A.1

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

(6x²)(-3x⁵)

18x⁷

-18x⁷

18x⁷

3x⁷

Tags

CCSS.HSA.APR.A.1

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Simplify the expression in exponential form:
134⁰

134

Tags

CCSS.8.EE.A.1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Tags

CCSS.HSA.APR.D.6

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Tags

CCSS.HSA.APR.A.1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Tags

CCSS.HSA.APR.A.1

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Exponents Quiz

Simplify: 3n5⋅5n103n^5\cdot5n^{10}3n5⋅5n10

(2x2y)3\left(2x^2y\right)^3(2x2y)3

(6x2)(-3x5)

Simplify the expression in exponential form:1340

A new savings account is opened with $400 and gains 3% every year. What is the exponential function?

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Simplify: $3n^5\cdot5n^{10}$

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