A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales. Empty Scale Weight Displays Scale 1 –1 ounce Scale 2 –2 ounces Scale 3 0 ounces Scale 4 –1 ounce What is the average error in the scale displays? –4 ounces –1 ounces 0 ounces 1 ounce

1. perpendicular

2. parallel

3. perpendicular

h= 12 inches

step-by-step explanation:

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation: