Answer:
The <em>z</em>-score for a a class with 21 students is <u>-1.33</u>.
Step-by-step explanation:
The <em>z</em>-score of a raw <em>X</em> is computed by subtracting the mean of a distribution from the raw score <em>X</em> and dividing the result by the standard deviation of the distribution.
The <em>z</em>-scores are standardized scores and follow a Standard normal distribution.
Given:
μ = 38.1
σ = 12.9
<em>X</em> = 21
Compute the <em>z</em>-score for the raw score <em>X</em> as follows:
Thus, the <em>z</em>-score for a a class with 21 students is <u>-1.33</u>.
Answer: C
Step-by-step explanation:
C because one x values cant have two y values
Answer:
When adding up the side lengths given, you get 35
Answer:
The answer to your question is There were sold 166 adult tickets and 294
children tickets.
Step-by-step explanation:
Data
Total number of seats = 460
cost for adults = a = $52
cost for children = c = $26
Total cost = $16276
Process
1.- Write equations to solve this problem
a + c = 460 Equation l
52a + 26c = 16276 Equation ll
2.- Solve the system of equation by substitution.
-Solve equation l for a
a = 460 - c
-Substitute a in equation ll
52(460 - c) + 26c = 16276
-Expand
23920 - 52c + 26c = 16276
-Simplify
-26c = 16276 - 23920
-26c = -7644
c= -7644/-26
c = 294
3.- Find a
a = 460 - 294
a = 166
Since simplify means multiply you would do
42 × 48 = 2,016
Your answer is 2,016
Hope I helped :)
