I think the correct answer is C. because each if forming a right triangle when you trace it.
If i'm correct brainliest please
You can first use the fundamental trigonometric identity:
sin(x) ^2 + cos(x) ^2 = 1
=> cos(x) ^2 = 1 - sin(x) ^2
=> cos(x) ^2 = 1 - (-4/5)^2 = 1 - 16/25 = (25 - 16) / 25 = 9 /25
=> cos (x) = +/ - √ (9/25) = +/- 3/5
Now, analyze the sign.
In the fhird quadrant the cosine is negative, so the answer is cos(x) = - 3/5.
Answer: option C. - 3/5
Answer: 240 km
Step-by-step explanation:
From the graph :
50 miles = 80km
1 miles = 80/50 km
Therefore :
150 miles = 80/50 x 150
150 miles = 240 km
Answer:
11
Step-by-step explanation:
Basically count each doubt that is on the number line with a value <u>greater </u>than 450
