MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_NextPart_01C93F52.B87E1A70" This document is a Single File Web Page, also known as a Web Archive file. If you are seeing this message, your browser or editor doesn't support Web Archive files. Please download a browser that supports Web Archive, such as Microsoft Internet Explorer. ------=_NextPart_01C93F52.B87E1A70 Content-Location: file:///C:/5F66D5F6/Mworksheet4.5,4.6.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Math 121A - Test 1

Math 121

Sections 4.5, 4.6

 

        &= nbsp;   Solve each equation.

 

1.&n= bsp;     16x-2 =3D 53x

 

 

        &= nbsp;  

2.&n= bsp;     e<= span style=3D'font-family:"Times New Roman";letter-spacing:-.15pt'> x-6 =3D 30

 

 

 

3.&n= bsp;    

 

 

 

4.&n= bsp;    

 

 

 

 

5.&n= bsp;     The population of a town grows exponentially accordi= ng to the function P(t)=3D 12,400 = (1.14)t , where t is the number of years since 199= 0.

 

a. Find the population in 1994?    =    _______________

 

 

b. When will = the population reach 25,000?  _____= __________

 

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6.&n= bsp;     The equation  approximate= s the total sales S in thousands of d= ollars t years after it was introduced= on the market. How long will it take the total sales to reach 130 thousand dol= lars?

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<= span style=3D'font-family:"Times New Roman";letter-spacing:-.15pt'>        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;                    &= nbsp;           &nbs= p;   _________________

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