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Answer:
<em>Hello there! This answer would be.. </em><em>It is one-half the area of a rectangle of length 4 units and width 5 units.</em>
 
        
                    
             
        
        
        
Answer:
0.3175
Step-by-step explanation:
z=-1.25 from table is .1056
z=.80 from table is .7881
subtract from each other =.6825
Subtract from the whole is 1-.6825=0.3175
 
        
             
        
        
        
7 * 0.5 + 3 * 0.8 = 3.5 + 2.4 = 5.9 
<span>5.9/10 X 100 = 59%
</span><span>59% concentration of new mixture</span>
        
             
        
        
        
Answer:
The length of AE is 20 units.
Step-by-step explanation:
Given two segments AD and BC intersect at point E to form two triangles ABE and DCE. Side AB is parallel to side DC. A E is labeled 2x+10. ED is labeled x+3. AB is 10 units long and DC is 4 units long.
we have to find the length of AE
AB||CD ⇒ ∠EAB=∠EDC and ∠EBA=∠ECD   
In ΔABE and ΔDCE
∠EAB=∠EDC      (∵Alternate angles)
∠EBA=∠ECD      (∵Alternate angles)
By AA similarity, ΔABE ≈ ΔDCE
therefore, 
⇒ 
⇒ 
⇒ 
Hence, AE=2x+10=2(5)+10=20 units
The length of AE is 20 units.