3. The steps below"show" that 1 = 2. Find the error. Given: a = b
a= b
Given
ab = 62
Multiplication Property of Equality
ab - a2 = 62 - a2 Subtraction Property of Equality
alb - a) = (b + a)(b - a) Distributive Property
a = b + a
Division Property of Equality
a = a + a
Substitution Property of Equality
a = 2a
Simplify
1 = 2
Division Property of Equality

Use this data in the problem below. follow the steps carefully. round to the nearest tenth. lot 3: week 1: 345 week 2: 340 week 3: 400 week 4: 325 step 1. jim enters the data and calculates the average or mean. step 2. jim calculates the deviation from the mean by subtracting the mean from each value. step 3. jim squares each deviation to remove negative signs. step 4. jim sums the squares of each deviation and divides by the count for the variance. step 5. jim takes the square root of the variance to find the standard deviation.

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)