Answer:

Step-by-step explanation:
Given
See attachment for number line
Required
Determine the model
From the attachment, we can see that each partition is 1/3
The gray rectangle covers 11 partitions.
So:


Express as a mixed number

The black rectangle covers 8 partitions
So:


Express as a mixed number

So, the model is:

Where Total is the point where the black rectangle stops

A=LW, we are told that the dimensions are 42 and 48 so:
A=42*48
A=2016in^2
Answer:
-2 + 5 = 3
Step-by-step explanation:
The arrow represents an addition, you start with -2 and add 5, so you end up at +3.
Answer:
We conclude that the Pennsylvania school district have an IQ higher than the average of 101.5
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 101.5
Sample mean,
= 106.4
Sample size, n = 30
Alpha, α = 0.05
Population standard deviation, σ = 15
First, we design the null and the alternate hypothesis
We use one-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis.
Thus, we conclude that the Pennsylvania school district have an IQ higher than the average of 101.5
Answer:
<h2>1005.12</h2>
Step-by-step explanation:
<u>first</u><u> </u><u>we </u><u>need</u><u> to</u><u> </u><u>know</u><u> that</u><u> </u><u>r</u><u>edious</u><u> </u><u>isn't</u><u> </u><u>gien</u>
so we have to find redious
according to Pythagoras theorem
a²+b²=c²
a=√c²-b²
a=17²-15²
a=√(17+15)(17-15)
a=√64
a=8






