+0  
 
+1
54
6
avatar+199 

Q1

Q2

Q3

Q4

Q5

 

Thank you :D

Johnnyboy  Sep 26, 2018
 #1
avatar
+1

Q1: (Algebra 2?)

Guest Sep 26, 2018
 #2
avatar+90023 
+1

Q1

 

2√32 + 5√20 =

 

2 *√16 * √2  +  5 * √4 * √5  =

 

2* 4 * √2   +  5*2 * √5  =

 

8√2  + 10√5

 

 

cool cool cool

CPhill  Sep 26, 2018
 #3
avatar+90023 
+1

Q2...to find the correct solution...pick a point in the shaded region...I'll pick   (x, y)  =   ( 0,3)

 

Note that this point satisfies all three equations in the first answer....so this answer is correct

 

cool cool cool

CPhill  Sep 26, 2018
 #4
avatar+90023 
+1

Q3

 

We have the following system

 

3x + 2y ≥ 300

.75x + .50y ≤ 100

x ≤ 80

 

Look at the graph, here :  https://www.desmos.com/calculator/welwdepye5

 

Four of the given points lie in, or on the boundary of, the feasible region

 

The only one that doesn't  is ( 40, 80 )  [ the only non-feasible point ]

 

 

cool cool cool

CPhill  Sep 26, 2018
 #5
avatar+90023 
+1

Q4

 

( x^4 * y^7) ^(3/4)  =

 

 4√  [ (x^4)^3 *  (y^7)^3 ] =

 

4√  [x^12 * y^21 ] =

 

x^3 * y^5  4√  y     ⇒   Third answer

 

 

cool cool cool

CPhill  Sep 26, 2018
 #6
avatar+90023 
+1

Q5

 

Time * Rate  =  Distance  ....so.....

 

Mary drives between  4(40)    = 160 miles   and less than 4(60)  =  240  miles

 

Since Marty  travels 50  miles more, he travels between  210  and   290  miles

 

 

 

cool cool cool

CPhill  Sep 26, 2018

8 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.