Simplify: 1(-3.86 + 6.82)| + |(4.02 - 12.45)||

11.39

Step-by-step explanation:

-3.86+6.82=2.96

abs(2.96)=2.96

4.02-12.45=-8.43

abs(-8.43)=8.43

1(2.96)+8.43=2.96+8.43=11.39

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)