Answer:
32.7°
Step-by-step explanation:
Use the formula for law of cosines, for this question we need so solve for angle B, so use...
b² = a² + c² - 2(a)(c)Cos B
We are given a, b, and c, so plug them in...
55² = 90² + 50² - 2(90)(50)Cos B
Now simplify...
3,025 = 8100 + 2500 - (9000)Cos B
-7,575 = -(9000)Cos B (subtract 8100 and 2500 from both sides)
0.841666667 = Cos B (divide both sides by -9000)
Cos^(-1) 0.841666667 = B (use cosine inverse function on calculator)
Answer:
900 miles
Step-by-step explanation:
Well, 200 miles is 1 inch. 100 miles is 1/2 an inch.
Answer:
a
Step-by-step explanation:
because i got it right
Answer:
see explanation
Step-by-step explanation:
5² = 25 and 6² = 36
(
)² = 30
Then
25 < 30 < 36
Thus lies between 5 and 6
Answer:
y = -8/9
Step-by-step explanation:
2 ×(7) - 9 y = 22
14 - 9y = 22
9 y = -8
y = -8/9
