Let see...
So we know that × is less than 14.3 subtract by 9.
We can figure out what × is is by subtracting 14.3 with 9 and then find the answer less than it.
So now we know that the answer can be 5.3 or more. This means that we can cross out 5.3, 6.4, and 7.5.
So it would be 3.1 and 4.2.
Answer:
<h2>C (-2, 4)</h2>Step-by-step explanation:
The point-slope equation of a line:
m - slope
(x₁, y₁) - point
We have the equation
Therefore
m = 3
(x₁, y₁) = (-2, 4)
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Work Shown:
Use law of cosines to find angle B
b^2 = a^2 + c^2 - 2*a*c*cos(B)
9^2 = 6^2 + 12^2 - 2*6*12*cos(B)
81 = 36 + 144 - 144*cos(B)
81 = 180 - 144*cos(B)
81 - 180 = -144*cos(B)
-99 = -144*cos(B)
-144*cos(B) = -99
cos(B) = (-99)/(-144)
cos(B) = 0.6875
B = arccos(0.6875)
B = 46.5674634422102
B = 47 when rounding to the nearest whole number
Make sure your calculator is in degree mode.
arccos is the same as inverse cosine often labeled on calculators.