What is the integer closest to zero?

25

Step-by-step explanation:

We have 3 consecutive integers. Let's call the first one n.

The other two will then have the values of n+1 and n+2:

First number: n

Second number: n+1

Third number: n+2

Let's write the expression for the sum of these 3:

The sum, 3n+3, is equal to 78:

Subtracting 3 from both sides:

Dividing both sides by 3:

Now, let's find the values of our 3 numbers:

First number, n

n = 25, so our first number is 25.

Second number, n+1

n + 1 = 25 + 1 = 26, second number is 26

Third number, n+2

n + 2 = 25 + 2 = 27, third number is 27

Our 3 numbers are 25, 26, 27. The one closest to 0 is the smallest one, or 25.

25

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.