Answer:
Its better to buy this week because it is cheaper with using coupon.
Step-by-step explanation:
140 x 0.85 = 119
125 > 119
 
        
             
        
        
        
Answer:
5.66 inches
Step-by-step explanation:

a² + 7² = 9²
a² + 49 = 81
a² + 49 - 49 = 81 - 49
a² = 32
a = square root of 32
a = 5.6568 or 5.66 inches
I used the Pythagorean Theorem to solve this.
 
        
                    
             
        
        
        
What are your answer choices
        
                    
             
        
        
        
Answer:
<h2>Side YZ is 8 units long.</h2>
Step-by-step explanation:
We can deduct form the graph that segment WO is a radius of the circle and XY is its diameters.
By given, we know that  , which means
, which means  , by radius definition.
, by radius definition.
An important characteristic of tangents about circles is that the tangent is always is perpendicular to the radius, that means  and
 and  is a right triangle, that means we can use Pythagorean's Theorem to find the side YZ.
 is a right triangle, that means we can use Pythagorean's Theorem to find the side YZ.

Where  is the hypothenuse and
 is the hypothenuse and  ,
 ,  are legs of the triangle.
 are legs of the triangle.
Replacing all given values, we have

However, by sum of segments, we have
 , where
, where  and
 and 

Therefore, side YZ is 8 units long.