Answer: -2.12°C
Step-by-step explanation:
Let x denotes the reading of the thermometers .
We assume that the readings on the thermometers are normally distributed.
Let a be the reading that separates the rejected thermometers from the others.
Given: Population mean : 
Standard deviation: 
Also, 
By using the z-table , the z-value corresponds to the p-value (one -tailed)0.017 is 
.
Now, 
i.e. 
i.e. 
For left tailed , 
It means the reading that separates the rejected thermometers from the others = -2.12°C.
Answer:
Each student sold 9 balloons
Step-by-step explanation:
In this question, we are asked to calculate the number of balloons sold by each student in each group at a carnival for the students. We proceed as follows.
Firstly, to calculate the total number of balloons sold by each group, we divide the total number of balloons by the number of groups.
Mathematically, this is equal to 162 balloons/6 = 27 balloons
This means that each of the groups sold equal number of balloons and that is equal to 27 balloons
And, we are made to know that there are 3 students per group. And the question asks to know the total number of balloons sold by individual students. To get the value of this, what we do is to divide the number of balloons in each group by the number of students in each group.
Mathematically, this is equal to 27/3 = 9 balloons per student
Okay so
16:4 is your starting ratio. Start by finding your GCF, which for this set, is 4.
Divide both sides by 4.
This gives you 4:1 (4 squares to 1 circle)
Hope this helps!
Answer: he answer is c
Step-by-step explanation:
the line doesn't pass through 1 it passes through the origin
Answer:
25
Step-by-step explanation:
7² + 24² = c²
(7 x 7) + ( 24 x 24) = c²
49 + 576 = c²
625 = c²
25 = c
