Answer:
H0:p=0.5
H1:p>0.5
Sample proportion=492/792=0.6276
Test statistic:
z=(0.6276-0.5)/sqrt(0.5*(1-0.5)/784)
z=7.14
p-value=P(z>7.14)=0
Step-by-step explanation:
Answer:
2x+3x2
+x3
−5
Step-by-step explanation:
Hope this helps
Distribute 6x into (x - 2y):
= 6x^2 - 12xy
Hope this helps.
Answer:
B
Step-by-step explanation:
Factor:
Turn roots into answers:
The correct answer choice is B. Hope this helps!
Jonathan's rate = 20/40 = 1/2 page per minute
Susan's rate = 20/30 = 2/3 page per minute
Jack's rate = 20/24 = 5/6 page per minute
Combined rate for the three = 1/2 + 2/3 + 5/6 = 2 pages per minute
Therefore, working together, the will type the document in 20/2 = 10 minutes.
