The depth of the bottom of the hole after the second day is 36 feet using addition operation.
<h3>What is addition?</h3>
In math, addition is the process of adding two or more integers together. Addends are the numbers that are added, while the sum refers to the outcome of the operation.
Given the depth on the first day is 26 ½ feet.
Depth on the second day = 9½ feet more than on the first day i.e. 9½ feet + depth on the first day
This implies, depth on the second day = 9½ + 26 ½
= 36 feet
Therefore, the depth of the bottom of the hole after the second day is 36 feet.
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Answer:
Multiply it like a normal number. 
Step-by-step explanation:
Take the point away in both numbers
line the numbers up and add the zero at the end of 28
multiply
add the decimal point back after solved (3 decimal points) 
  818
x280
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Answer:
1.) n-10
2.) 4 / x=x (dont trust me on this)
3.) -8n+1
4.) 1/2 - 19 ( dont trust me on this)
5.)3/5-21 or 3/5>21
6.)x^+15
Step-by-step explanation:
I tried double check  it 
its been awhile 
 
        
             
        
        
        
9514 1404 393
Answer:
   nπ -π/6 . . . for any integer n
Step-by-step explanation:
   tan(x) +√3 = -2tan(x) . . . . . given
   3tan(x) = -√3 . . . . . . . . . . . add 2tan(x)-√3
   tan(x) = -√3/3 . . . . . . . . . . divide by 3
   x = arctan(-√3/3) = -π/6 . . . . use the inverse tangent function to find x
This is the value in the range (-π/2, π/2). The tangent function repeats with period π, so the set of values of x that will satisfy this equation is ...
   x = n·π -π/6 . . . . for any integer n