Answer:
B. 57
Step-by-step explanation:
You can solve the triangle using the Law of Cosines, then find the required angle using the Law of Sines. Or, you can estimate it based on the fact that the angle shown is very nearly 90°.
If ∠B were 90°, then the value of ∠C would be ...
∠C ≈ arctan(21/14) ≈ arctan(1.5) ≈ 56.3°
Since ∠B is slightly smaller, ∠C will be slightly larger. The nearest value slightly larger than 56.3° is choice B, 57°.
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Doing this the long way, you get ...
b² = a² + c² - 2ac·cos(B) = 14² +21² -2(14)(21)cos(89°) ≈ 626.738
b ≈ √626.738 ≈ 25.035
Then angle C is given by the law of sines as ...
sin(C)/c = sin(B)/b
C = arcsin(c/b·sin(B)) ≈ arcsin(0.838707) ≈ 57.004°
m∠C ≈ 57°
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Many graphing calculators can solve triangles, as can phone or tablet apps.
2x is the highest common factor of the expression
Answer:
The graph below models the value of a $20,000 car t years after it was purchased.
Value of Car
A graph titled Value of Car has years bbhvb ngc,jon the x-axis and Dollars on the y-axis. A line curves down and goes through points (0, 20,000), (4, 10,000), and (14, 2,000).
Which statement best describes why the value of the car is a function of the number of years since it was purchased?
Each car value, y, is associated with exactly one time, t.
Each time, t, is associated with exactly one car value, y.
The rate at which the car decreases in value is not constant.
There is no time, t, at which the value of the car is 0.
Step-by-step explanation:
Answer:
You need to take a screenshot or picture of the problem then I'll help you
Step-by-step explanation:
Lol I actually laughed at this silly much ?
