1-d
2-c
3-e
4-b
5-a
It's very simple. Try..
        
             
        
        
        
F(x) = -2(x + 3)^2 - 1
vertex = (-3, -1)
domain is all real number values of x and 
range is all real numbers values of y less than or equal to -1.
        
                    
             
        
        
        
Answer: 
Ans A). The graph is shown.
Ans B). 18.3333 C temperature when F is 65 temperature
Ans C). 32 F when the line crosses the horizontal axis
Ans D). Slope of line C=
 is 
Step-by-step explanation:
Given equation is C=
Ans A).
For the table, 
Take the four value of F as 32,41,50,59.
For F = 32.
The value of C is 
C=
C=
C=0.
For F = 41.
The value of C is 
C=
C=
C=05
For F = 50.
The value of C is 
C=
C=
C=10
For F = 59.
The value of C is 
C=
C=
C=15
<em>Note: The figure shows a graph of given equation with points.</em>
Ans B). Estimate temperature in C when the temperature in F is 65
For F = 65.
The value of C is 
C=
C=
<em>C=18.333333.</em>
Ans C). At what temperature, graph lien cross the horizontal axis
When the line crosses the horizontal axis, C=0
Therefore,
C=
0=
0=
F=32 Temperature.
Ans D). Slope of the line C=
The slope of line is given by s= 
Take points from the table of answer A.
let (32,0) and (41,5) using for slope.
s= 
s= 
s= 
Slope of line C=
 is 
 
        
             
        
        
        
Answer:
You have 12.25 minutes left to workout.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
12a+2b
Step-by-step explanation:
1. Expand by distributing terms.
20a-8b-2(4a-5b)20a−8b−2(4a−5b)
2. Expand by distributing terms.
20a-8b-(8a-10b)20a−8b−(8a−10b)
 3. Remove parentheses.
20a-8b-8a+10b20a−8b−8a+10b
4.Collect like terms.
(20a-8a)+(-8b+10b)(20a−8a)+(−8b+10b)
5. Simplify.
12a+2b12a+2b
6.Answer
12a+2b