Answer:
She will need to practice 6.5 hours during Tuesday, Wednesday, and Thursday or 2.2 hours on each of the days she will practice.
Step-by-step explanation:
Answer:
15 teams, 4 girls and 3 boys on each team.
Step-by-step explanation:
What's the greatest common multiple of 60 and 45? It's 15.
This is the greatest number of teams that can be formed.
60/15 = 4; thus, there will be 4 girls on each team.
45/15 = 3; thus, 3 boys on each team
Answer: the answer is C. 80°
Step-by-step explanation:
= 360 - 110 - 90
=160°
b=1/2 (160)
b=80°
Answer:8•4 √4
Step-by-step explanation:
Answer:
The 95% confidence interval for the difference between the Route B and Route A commuting times is -3.771808 to 1.771808
Step-by-step explanation:
Here we have the confidence interval is given by the following equation;

= 49 Minutes
σ₁ = 2 Minutes
= 50 Minutes
σ₂ = 4 Minutes
n₁ = n₂ = 10 days
α = 0.05
At 95%, from the z score table , z
=
1.959964 ≈ ± 1.96
Plugging in the values Solving we get
Δμ Min = -3.771808 and Δμ Max = 1.771808.