Answer:
n = 600(1.2)^t
Step-by-step explanation:
edge
 
        
             
        
        
        
Answer:
60°
please look into the solution down here. 
Step-by-step explanation:
since BD bisects it, then the angles should be bisected symmetrically, or in other words, ANGLE ABD = angle DBC, 
hence,
4x = 2x +30
2x = 30
x = 15
therefore, angle DBC = 2x + 30 = 2(15) + 30 = 60°.
 
        
             
        
        
        
12 cm:102 ft
--------  ------
12        12
1 cm:8.5 ft
The scale is 1 cm equals 8.5 ft.
        
             
        
        
        
Answer:
∠XDQ : 41° 
∠UXD: 139 °
Step-by-step explanation:
Allow me to rewrite your answer for a better understanding and please have a look at the attached photo. 
<em>A segment XD is drawn in rectangle QUAD as shown  below.
</em>
<em>What are the measures of ∠XDQ and ∠UXD ?
</em>
My answer: 
As we can see in the photo, ∠ADX = 49° and ∠ADU =90° 
=>  ∠XDQ = ∠ADU - ∠ADX
= 90°  - 49°  = 41°
In the triangle ADX, we can find out the angle of ∠DXA 
= 180° - ∠DAX - ∠ADX 
= 180° - 90° - 49°
= 41° 
=> <em>∠UXD = </em>180° - ∠DXA  (Because UA is a straight line) 
 =180° - 41°  
= 139 °