Answer:
The student got 90% correct and 10% incorrect.
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y =
x - 6 ← is in slope- intercept form
with slope m = 
Parallel lines have equal slopes , then
y =
x + c ← is the partial equation
To find c substitute (9, 2) into the partial equation
2 = 6 + c ⇒ c = 2 - 6 = - 4
y =
x - 4 ← equation of parallel line
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Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= -
, then
y = -
x + c ← is the partial equation
To find c substitute (9, 2) into the partial equation
2 = -
+ c ⇒ c = 2 +
= 
y = -
x +
← equation of perpendicular line
business cycle is defined as an "up and down movement"- this corresponds to expansion and contraction. This expansion and contraction is measured for example in the Gross Domestic Product (GDP) of a country.
Answer:
The skirt would be $12.00
Step-by-step explanation:
you take the original price ($30) and divide by 100, then you are going to get 0.3. After you have divided you are going to multiply the 0.3 to the 40% then you should get your total of 12.00 dollars!