<h3>
Answer:  false</h3>
Work Shown:
s = false
p = true
r = false
-p = false, which is the opposite of statement p
s or -p = false or false = false
The result of an 'or' operation is false only when both parts are false; otherwise, it is true
(s or -p) or r = false or false = false
(s or -p) or r = false
 
        
        
        
Tom--------------
>10 sq ft per minute
Tim-------------------
>3.5*10=35 sq ft per minute
 Both painters (10+35)=45
sq ft per minute
 let's assume a cubic unit crate----------> V1=1*1*1=1 feet3
<span>the total surface of the cube is S1=6*(1*1)=6 </span>sq
ft
 if the volume of the cube increases twice 
V2=2 feet3 ------------------- >    2=x*x*x------------- >x=2^(1/3)
And the S2=6*(2^(1/3)*<span> 2</span>^(1/3)=9.5244 sq ft
V2/V1=9.5244/6=1.5874
Therefore
If Tim and Tom-----------------------
> take 1 day----------- > to paint a crate V1
For the crate V2------------- > take 1.5874 days 
assuming an 8-hour work day
 0.5874*8=4.70 hr-------------- > 4 h 42 min
 The answer is 1 day 4h 42 min
 
        
        
        
There is no solution.
Step-by-step explanation:
Given:
y = 2x + 1 
4x - 2y = 4
Substitute y = 2x + 1 into 4x - 2y = 4
4x - 2(2x + 1) = 4
4x - 4x - 2 = 4
0x = 4 + 2
0x = 6
Anything to the multiple of zero is zero. Hence 0x = 0, and 0 ≠ 6
So there is no solution to the equation.
 
        
             
        
        
        
Answer:
10) x=9
11) x=25
Step-by-step explanation:
a triangle is 180º total
10)   2x+8x+90=180
10x=90
x=9
11) 3x+1+2x+2+2x+2=180
7x+5=180
7x=175
x=25
 
        
             
        
        
        
The graph of a quadratic equation is a U-shaped curved called parabola. It is because the parabola makes very easy to find the axis of symmetry to plot selected points and finding the roots and vertex.
Good luck :)