The answer will be D. 7/10 because you have 10 numbers and you want to have a number greater than 3 so it would be 10-3=7 and 7 would go over 10 because there are 7 numbers greater than 3 but less than 10.
 
        
                    
             
        
        
        
1. Given any triangle ABC with sides BC=a, AC=b and AB=c, the following are true :
       i) the larger the angle, the larger the side in front of it, and the other way around as well. (Sine Law) Let a=20 in, then the largest angle is angle A.
       ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:       

2. 

3. m(A) = Arccos(-0.641)≈130°, 
4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc
 
        
        
        
Answer:
84°
Step-by-step explanation:
m∠TRV=2*m∠TUV;
m∠TRV=42*2=84°.
 
        
             
        
        
        
Answer:
Part A:
P(x)=15x^4+30x^3-50
Part B:
P(4)=$4270
Step-by-step explanation:
Part A:
In order to find the profit function P(x) we have to integrate the P'(x)
P'(x)=x(60x^2+90x)
P'(x)=60x^3+90x^2

P(x)=15x^4+30x^3+C
when x=0, C=-50
P(x)=15x^4+30x^3-50
Part B:
x=4
P(x)=15x^4+30x^3-50
P(4)=15*4^4+30*4^3-50
P(4)=$4270
Profit from selling 400 pounds is $4270
 
        
             
        
        
        
Answer:
Rotation 180° counterclockwise about the origin