Algebra Help Please

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Question description


 

1. Simplify the expression.



 

(x + 3y − 5z) − (x − 2y + 4z)1  =


 

Classify the answer by number of terms and degree.


 

1st-degree monomial



 

1st-degree binomial 



 

1st-degree trinomial



 

2nd-degree binomial



 

2nd-degree trinomial


 

2. Simplify the expression.



 

3(x − 1) − 2(x2 + 2x + 3) − 5(x + 9)1 


 

Classify the answer by number of terms and degree.



 

1st-degree monomial



 

1st-degree binomial 



 

1st-degree trinomial



 

2nd-degree binomial



 

2nd-degree trinomial


 

3. Simplify the expression.



 

(3x − 1)(x2 + 3x − 4) =


 

4. Simplify the expression.



 

(x − 2)(2x − 3) − (x + 1)(x − 4)


 

5. If possible, completely factor the expression. (If the
expression is not factorable, enter NF.)



 

x2 − 8x − 9


 

6. Completely factor the expression.



 

x2 + 7x + 10


 

7. Factor the expression by using areas.



 

x2 + x − 42


 

8. Let x = 2 and y = 4. Find the value of the
given capital letter.



 

N = x2 + 2xy + y2
+ 1



 

N = 1

9. Solve the equations.



 

(a)  3L /4  = 7



 

L =


 

(b)  2 = 2M/3  + 8



 

M =


 

9. Solve the equation.



 

3(W + 4) − 4(W + 5) = 0



 

W = 1

10. Solve the equation. (Enter your answers as a
comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)



 

x2 − 14x + 42 = 0x = 1 


 

11. Young's Rule for calculating a child's dosage for
medication is



 

CHILD'S DOSE = 



 



 


 


 

AGE OF CHILD


 

 

AGE OF CHILD + 12


 



 

 × ADULT DOSE.



 

(a) If an adult's dose of a particular medication is 100 mg,
what is the dose for a 6-year-old child? (Round your answer to one decimal
place.)

1
mg



(b) If a 12-year-old child's dose of a particular medication is 10 mg, what is
the adult's dose?

2
mg


 

12. A poll was taken of 100 students at a commuter campus to
find out how they got to campus. The results were as follows:



 



 
 
 


 
 
 


 
 
 


 
 
 


 
 
 


 
 
 


 
 
 


 

32


 

 

said they drove alone.


 

 

33


 

 

rode in a carpool.


 

 

31


 

 

rode public transportation.


 

 

4


 

 

used both carpools and public transportation.


 

 

7


 

 

used both a carpool and sometimes their own cars.


 

 

5


 

 

used buses as well as their own cars.


 

 

2


 

 

used all three methods.


 



 

How many used none of the above-mentioned means of transportation?

1
students



 

Tutor Answer

(Top Tutor) Daniel C.
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School: New York University
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