the answer is D
reason: ration of freshmen to sophmores is 17 to 19, for other way around, flip the num ber
Answer:
Step-by-step explanation:
Answer:
sin(2A) = (2√2 + √3) / 6
Step-by-step explanation:
2A = (A+B) + (A−B)
sin(2A) = sin((A+B) + (A−B))
Angle sum formula:
sin(2A) = sin(A+B) cos(A−B) + sin(A−B) cos(A+B)
sin(2A) = 1/2 cos(A−B) + 1/3 cos(A+B)
Pythagorean identity:
sin(2A) = 1/2 √[1 − sin²(A−B)] + 1/3 √[1 − sin²(A+B)]
sin(2A) = 1/2 √(1 − 1/9) + 1/3 √(1 − 1/4)
sin(2A) = 1/2 √(8/9) + 1/3 √(3/4)
sin(2A) = 1/3 √2 + 1/6 √3
sin(2A) = (2√2 + √3) / 6
Hello there!
28 recipes .......> 100%
15 recipes .......> x%
Cross multiply
28x = 15*100
28x = 1500
x= 1500/28
x ≈ 53.5%
She makes 53.5% of the recipes.
I hope that helps!
Answer: 25%
Step-by-step explanation: 100-75=25
