This  is (x - 6)*x^1/2(x + 3)
= x^1/2 (x^2 - 3x - 18)
= x^(5/2) - 3x^(3/2) - 18x^(1/2)
        
                    
             
        
        
        
Answer:
1- (-1,4)
2- (3,8)
Step-by-step explanation:
PRETTY SURE
 
        
             
        
        
        
Answer:
see explanation
Step-by-step explanation:
The meaning of n factorial → n !
n ! = n(n - 1)(n - 2)........ × 3 × 2 × 1
For example
7 !
= 7 × 6 × 5 × 4 × 3 × 2 × 1 
 
        
             
        
        
        
Answer:
Second choice:


Fifth choice:


Step-by-step explanation:
Let's look at choice 1.


I'm going to subtract 1 on both sides for the first equation giving me  . I will replace the
. I will replace the  in the second equation with this substitution from equation 1.
 in the second equation with this substitution from equation 1.

Expand using the distributive property and the identity  :
:




So this not the desired result.
Let's look at choice 2.


Solve the first equation for  by dividing both sides by 2:
 by dividing both sides by 2:
 .
.
Let's plug this into equation 2:



This is the desired result.
Choice 3:


Solve the first equation for  by adding 3 on both sides:
 by adding 3 on both sides:
 .
.
Plug into second equation:

Expanding using the distributive property and the earlier identity mentioned to expand the binomial square:



Not the desired result.
Choice 4:


I'm going to solve the bottom equation for  since I don't want to deal with square roots.
 since I don't want to deal with square roots.
Add 3 on both sides:

Divide both sides by 2:

Plug into equation 1:

This is not the desired result because the  variable will be squared now instead of the
 variable will be squared now instead of the  variable.
 variable.
Choice 5:


Solve the first equation for  by subtracting 1 on both sides:
 by subtracting 1 on both sides:
 .
.
Plug into equation 2:

Distribute and use the binomial square identity used earlier:



 .
.
This is the desired result.
 
        
                    
             
        
        
        
Answer:
a, c
Step-by-step explanation:
Let's start with one of each choice. That'll be 3 * 4 * 3 * 3 * 10 = 1080 pizzas. As for the second one, this time the toppings won't be 10 it will be 10 * 9 * 8 because we have 10, and then 9, and then 8 topping choices. This gives us 1080 * 9 * 8 = 77,760. Hope this helps!