4th quadrant is positive x (cos) and negative y (sin)
Use the Pythagorean Theorem to calculate the value of y (sin).
x² + y² = c²
5² + y² = 13²
25 + y² = 169
y² = 144
y = 12
Since the y-value is negative in the 4th quadrant, then y = -12
It will take JJ 4 hours to mow all of the yards in his block alone
Answer:
130°
Step-by-step explanation:
180-50=130°
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