(2x + 5) / (3x + 5) as ur answer
Answer:
a) 0.383
b) 0.375
Step-by-step explanation:
a) Calculate each z-score.
z = (x − μ) / σ
z₁ = (112 − 118) / 12 = -0.5
z₂ = (124 − 118) / 12 = 0.5
Use a calculator or z-score table to find the probability.
P(-0.5 < Z < 0.5) = 0.6915 − 0.3085 = 0.383
b) 0.383 × 16 ≈ 6. So the expected proportion would be 6/16 = 0.375.
30,60,90
45,45,90
Pretty much all angles that add up to be 180
Answer:
177.87
Explanation:
<u>162.75 * 100</u> = 177.87
91.5
177.87 * 0.915 = 162.75
