20%
1. 4 divided by 20 = 0.2
2. 0.2 times 100 = 20
3. And the final answer is 20%
Hope that helped:)
Answer:
2(29x5−127)
Step-by-step explanation:
Factor 58x5−254
58x5−254
=2(29x5−127)
Answer: the t-test statistic is - 1.77
Step-by-step explanation:
For the null hypothesis,
H 0: μ = 2600
For the alternative hypothesis,
H a: μ ≠ 2600
This is a two tailed test
Since no population standard deviation is given, the distribution is a student's t.
Since n = 50,
Degrees of freedom, df = n - 1 = 50 - 1 = 49
t = (x - µ)/(s/√n)
Where
x = sample mean = $2450
µ = population mean = $2600
s = samples standard deviation = $600
Therefore,
t = (2450 - 2600)/(600/√50) = - 1.77
Tan 18 = x/2
⇒ 0.3249 = x/2
⇒ x = 2 * 0.3249 =
⇒ x = 0.6498 ≈ 0.65
Hope it helps!
Answer:
x + 4 > 90
x = the greater portion of the plays he needs to learn.
4 = the plays he's already learned
90 = less than the plays he needs to learn.
I don't know why someone would need to learn more than 90 plays but whatever.
