Step-by-step explanation:
please type the question correctly, it's confusing. thanks
Answer:
P(z>1.3) = 0.9032
Step-by-step explanation:
We are given:
Mean = 5000
Standard deviation = 1000
x = 6300
P(x>6300)=?
z-score =?
z-score = x- mean/standard deviation
z-score = 6300 - 5000/1000
z- score = 1300/1000
z-score = 1.3
So, P(x>6300) = P(z>1.3)
Looking at the z-probability distribution table and finding value:
P(z>1.3) = 0.9032
So, P(z>1.3) = 0.9032
Sec t (theta) - 2 = 0
sec t = 2
1/ cos t = 2
cos t = 1/2
Answer:
t = π / 3 + 2 k π , or : t = 5 π / 3 + 2 kπ,
k ∈ Z
<h2>Required Answer:</h2>

<h2 /><h2>Question:</h2>
- There are 20 classrooms in the high school with 30 students in each class. How many students are in the school?
<h2>To find:</h2>
<h2>Given:</h2>
- Total no. of classrooms = 20
- students in each class= 30
<h2>Answer:</h2>
- Total no. of students in school= Total no. of classrooms×students in each class
- Total no. of students in school=20×30
- Total no. of students in school=600
best of luck! ^_^
It would be 7.45 since the -3.05 and the -9.5 together would equal -12.55 which subtracted from 20 would equal 7.45