Because the cos theta < 0 then theta must be an obtuse angle
so a^2 + b^2 < a^2
C
Answer:
A
The correct option is B
B
C
D
The correct option is D
Step-by-step explanation:
From the question we are told that
The sample size is 
The number that developed nausea is X = 50
The population proportion is p = 0.20
The null hypothesis is 
The alternative hypothesis is 
Generally the sample proportion is mathematically represented as
Generally the test statistics is mathematically represented as
=> 
=> 
=>
The p-value obtained from the z-table is
Given that the 
then we fail to reject the null hypothesis
Answer:
sorry i don't know that
Step-by-step explanation:
Answer:
Jen ate 18 jujubes
Step-by-step explanation:
Start with Kim. She was given 10. There is no remainder.
Kyle kept 8 from the total he was given, so Kyle had 18.
Let the number of Jujubes given to Jen = x
(1/2) x = 18 Multiply both sides by 2
2(1/2)x = 18*2
x = 36
Jen ate 1/2 of 36 which was 18.
Though you are not asked, Sam must have begun this with 2*36 = 72 Jujubes.
9514 1404 393
Answer:
- P = 160x +220y
- cost: 50x +70y ≤ 7400
- labor: 20x +25y ≤ 3500
Step-by-step explanation:
As with all cost problems, the total cost is the sum of products of number of items and item unit cost. Here, the items are acres of crops, and their unit costs are the respective cost per acre.
cost: 50x +70y ≤ 7400
Labor hours are added in similar fashion. The unit costs for labor hours are hours per acre for the different crops
labor: 20x +25y ≤ 3500
The profit function follows the same pattern:
P = 160x +220y
