In this problem, you're looking for the value of t, so that f(t) = 48. That means if you put t into 5t-7, you'll get 48. To do this set up and solve an equation for t by setting 48 equal to 5t-7:

Isolate the variable by adding 7 to both sides. 

Divide by 5 on both sides to find t.

The answer is 11.
 
        
        
        
Answer:
Step-by-step explanation:
EVEN THOUGH IT SHOWS A 1 DEGREE TEMPERATURE RISE AT 4PM TO 66
THAT SHOULD NOT MATTER IT FELL A TOTAL OF 5 DEGREES FROM 3 TO 6PM  
 
        
             
        
        
        
Answer:
18617.66 ft^2
Step-by-step explanation:
sides of triangular base
 a=  145ft  , 
b = 257ft ,
c =  290ft
<u>calculate the area of the base  </u>
The base is a scalene triangle hence the area is calculated as follows 
s = ( a + b + c ) / 2
   = ( 145 + 257 + 290 ) / 2 = 346 
Area of triangle = 
                           = 18617.66 ft^2
 
        
             
        
        
        
25365cm÷100=m
                          =253.65m
25365 is less than 30m 
        
             
        
        
        
Answer:
steps below
Step-by-step explanation:
2ⁿ⁺¹ +2ⁿ⁻¹ = 2ⁿ⁻¹ (2² + 1) = 5*2ⁿ⁻¹