Step-by-step explanation:
sina = -√3/2




=±1/2
Since, π<a<3π/2
cos a = -1/2


OptionB
Step-by-step explanation:
13.8564064606
hope it helps
The ratio of rise to run between points B and C is the same as the slope of line AB
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Slope of a line = ratio of rise to run = rise / run
Hence:
The ratio of rise to run between points B and C is the same as the slope of line AB
Find out more on equation at: brainly.com/question/2972832
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Answer:
I think the answer would be Y= 2X+9
Answer:(10/13,185/13)
Step-by-step explanation:
x+y=15
y=12x+5
----------
x+12x+5=15
13x=10
x=10/13
y=15-x
y=(15*13-10)/13
y=185/13