We have that
coordinates  are
<span>A(12,7), B(12,−3), C(−2,−3), and D(−2,7) 
</span>
i use the formula of midpoint <span>between A and B
</span>Xm=(x1+x2)/2    Ym=(y1+y2)/2
A(12,7) B(12,−3)
Xm=(12+12)/2=12
Ym=(7+(-3))/2=2
the point  (12,2)   <span>is halfway between A and B</span>
        
             
        
        
        
Answer:
600<2570-125.5x<2000  subtract 2570 from all terms...
-970<-125.5x<-570  divide all terms by -125.5 (and reverse signs because of division by a negative!)
 
7.73>x>4.54  and x is months since January, and since months can only be integers...
x=[5,7]
So January + 5, 6, and 7 respectively are the three months that satisfy the equation...
June, July, and August.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
No.
Step-by-step explanation:
f(x) = 3x^4-4x^2-3
If a function is odd then  f(-x) = -f(x) for all values of x.
Here f(-x) = 3(-x)^4 - 4(-x)^2 - 3 
= 3x^4 - 4x^2 - 3
So f(-x) = f(x) which makes it even.
 
        
             
        
        
        
Answer:
x = 20 
Step-by-step explanation:
The angles shown are alternate exterior angles.
Alternate exterior angles are congruent
This means that 46 must equal 3x - 14
Note that we've just created an equation that we can use to solve for 
We now use the equation to solve for x 
3x - 14 = 46 
add 14 to both sides 
3x - 14 + 14 = 46 + 14 
simplify 
3x = 60
Divide both sides by 3
3x / 3 = x 
60 / 3 = 20
We get that x = 20 
 
        
             
        
        
        
 , is a equation.
, is a equation.
4q>s+ , is an inequality.
, is an inequality.
4a-5 is an expression
<h3>
What is Equation, Expression and Inequality?</h3>
- An equation is a mathematical expression that contains an equals symbol.
- An expression is a combination of numbers, variables, functions
- An inequality is a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
The first Phrase 
 , is a equation.
, is a equation.
A equation contain operand, operators(+,-,*,/) and an equal sign.
The second phrase
4q>s+ , is an inequality.
, is an inequality.
An inequality is a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
The third phrase 
4a-5 is an expression
An expression is a combination of numbers, variables, functions
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