Exponential Equations

Exponential Equations

Assessment

Assessment

Lily Maryati

Mathematics

8th - 12th Grade

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12 questions

Show answers

1.

Multiple Choice

2 mins

1 pt

Solve

 27x=81.27^x=81.  

 x=43x=\frac{4}{3}  

 x=34x=\frac{3}{4}  

 x=43x=-\frac{4}{3}  

 x=34x=-\frac{3}{4}  

2.

Multiple Choice

2 mins

1 pt

Solve

 4x=32.4^x=32.  

 x=34x=\frac{3}{4}  

 x=25x=\frac{2}{5}  

 x=52x=\frac{5}{2}  

 x=14x=\frac{1}{4}  

3.

Multiple Choice

2 mins

1 pt

Solve

 8x=4.8^x=4.  

 x=23x=-\frac{2}{3}  

 x=23x=\frac{2}{3}  

 x=32x=\frac{3}{2}  

 x=12x=\frac{1}{2}  

4.

Multiple Choice

2 mins

1 pt

Solve

 3x=127.3^x=\frac{1}{27}.  

 x=2x=-2  

 x=3x=3  

 x=3x=-3  

 x=9x=9  

5.

Multiple Choice

2 mins

1 pt

Solve

 3(x+1)=27.3^{\left(x+1\right)}=27.  

 x=2x=2  

 x=4x=4  

 x=4x=-4  

 x=2x=-2  

6.

Multiple Choice

2 mins

1 pt

Find the solution for

 5(x+7)=25x.5^{\left(x+7\right)}=25^x.  

 x=2x=2  

 x=2x=-2  

 x=7x=-7  

 x=7x=7  

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