An equivalent ratio would be 4/10, and the number of cattle would be 136,000.Explanation:The question asks for an equivalent ratio. This means a fraction that is equivalent to the fraction between 700-799, which is 2/5.To create an equivalent fraction, we multiply the numerator and denominator by the same number. Multiplying both by 2, we get (2*2)/(5*2) = 4/10.Tenths are useful when dealing with thousands, because taking a tenth involves getting rid of a zero. This means that 1/10 would be 34000; 4/10 would be 4 times that: 4(34000) = 136000.
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Answer:  see proof below
<u>Step-by-step explanation:</u>
Given: A + B + C = π    and         cos A = cos B · cos C
scratchwork:
   A + B + C = π
                A = π - (B + C)
          cos A = cos [π - (B + C)]                              Apply cos
                     = - cos (B + C)                                    Simplify
                     = -(cos B · cos C - sin B · sin C)          Sum Identity
                     = sin B · sin C - cos B · cos C               Simplify 
cos B · cos C = sin B · sin C - cos B · cos C               Substitution
2cos B · cos C = sin B · sin C                                        Addition 
                       Division
                                     Division
                      2 = tan B · tan C 

<u>Proof LHS → RHS</u>
Given:                              A + B + C = π
Subtraction:                     A = π - (B + C)
Apply tan:                  tan A = tan(π - (B + C))
Simplify:                               = - tan (B + C)

Substitution:                        = -(tan B + tan C)/(1 - 2)
Simplify:                               = -(tan B + tan C)/-1
                                             = tan B + tan C
LHS = RHS:   tan B + tan C = tan B + tan C  
 
        
             
        
        
        
Answer:
$.65 (sixty five cents)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
y= -1+- i √79/4
Step-by-step explanation: Here is the answer ^^