Answer: 
Step-by-step explanation:
Slope of two lines that are perpendicular to each other is 1.
If one line is
, then its slope = 3 [by comparing to the linear equation y= mx+c, here m=3]
Let n be the slope of the required line, then

Equation of line with slope n and passers through (a,b) is

Equation of line with slope n=
and passes through point ( 0,-4) :

Hence, Required equation : 
Answer:
C. 5/7
Step-by-step explanation:
Answer:
m∠J = m∠Z = 46°
Step-by-step explanation:
m∠J = m∠Z = 46°
Answer:

Step-by-step explanation:
Given

Required
Solve
First, convert 180lb to kg


-- to 1dp
Next, convert 12oz to kg


--- to 1 dp
So, the expression becomes:



Hence:

Answer: 138
Step-by-step explanation: