Need help with questions 13-21 13)Page-3-23155yX+2X-12.A:3.4:5.3x4Yス×+」A:1ーX3:B:375x+4B:3x+8(x-1)(x+z)C:C:C:35x+13(3× +8)2.(x-1)(x+2)り:D:D:NONE OF THESENONE Of THESENONE OF THESEFOR Q16 -21: Solve each QUADRATIC equation. Write your answersin the form: § #, #} where # is a number. uSE rdz1617x+ 7x+12 =018)x+3x = 1D10x+5x= 02(スリ= 24-4%=34%3DO 3x+×-ス=o 2)RN/3

13)- Given: 32y+2y+15y Calculation:…

Answered: Need help with questions 13-21

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter9: Systems Of Equations And Inequalities

Section9.9: Properties Of Determinants

Problem 12E

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Related questions

Question

Need help with questions 13-21

13)
Page
-3-
2
3
15
5y
X+2
X-1
2.
A:
3.
4:
5.
3x
4Y
ス×+」
A:
1ーX
3:
B:
37
5x+4
B:
3x+8
(x-1)(x+z)
C:
C:
C:
3
5x+1
3(3× +8)
2.
(x-1)(x+2)
り:
D:
D:
NONE OF THESE
NONE Of THESE
NONE OF THESE
FOR Q16 -21: Solve each QUADRATIC equation. Write your answers
in the form: § #, #} where # is a number. uSE rdz
16
17
x+ 7x+12 =0
18)
x+3x = 1D
10x+5x= 0
2
(スリ
= 24
-4%=34
%3D
O 3x+×-ス=o 2)
R
N/3

Expert Solution

Step 1

13)-

Given:

$\frac{3}{2 y} + \frac{2}{y} + \frac{1}{5 y}$

Calculation:

$\begin{array}{rcl} \frac{3}{2 y} + \frac{2}{y} + \frac{1}{5 y} & = & (\frac{3}{2 y} + \frac{2}{y}) + \frac{1}{5 y} \\ = & (\frac{3 y + 4 y}{2 y^{2}}) + \frac{1}{5 y} \\ = & (\frac{7 y}{2 y^{2}}) + \frac{1}{5 y} \\ = & \frac{7}{2 y} + \frac{1}{5 y} \\ = & \frac{35 y + 2 y}{10 y^{2}} \\ = & \frac{37 y}{10 y^{2}} \\ \frac{3}{2 y} + \frac{2}{y} + \frac{1}{5 y} & = & \frac{37}{10 y} \end{array}$

Answer:

$\begin{array}{rcl} \frac{3}{2 y} \end{array} \begin{array}{rcl} + \end{array} \begin{array}{rcl} \frac{2}{y} \end{array} \begin{array}{rcl} + \end{array} \begin{array}{rcl} \frac{1}{5 y} \end{array} \begin{array}{rcl} = \end{array} \begin{array}{rcl} \frac{37}{10 y} \end{array}$

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