Answer:
hey! This was the only part of mathematics I ever enjoyed! So consider this both of our lucky days: Answer is : (2,7)
Step-by-step explanation:
basically plug in Y to the first equation as sox + 4(-x + 9) = 30
x - 4x + 36 = 30- 3x = - 6
x = 2
then plug that in to Y!
Y = -(2) + 9
so Y = 7
and our answer is : (2,7)
Steve's original temperature - 102
2 hours later it dropped 3 degrees
102 - 3 = 99
Steve's current temperature is 99.
Answer:
Step-by-step explanation:
Given that:
for 
That means, angle 
is in the 3rd quadrant.
To find:
Value of cot(t)
Solution:
First of all, let us recall what trigonometric ratios are positive and what trigonometric ratios are negative in 3rd quadrant.
In 3rd quadrant, tangent and cotangent are positive.
All other trigonometric ratios are negative.
Let us have a look at the following identity:
here, 
So, 
But, angle is in 3rd quadrant, so value of
Answer:
after 6 years
Step-by-step explanation:
thats when the lines intersect, (6,300)
