There is not relationship between the size of a school building and the number of students who play an instrument because the scatterplot does not have a cluster.
Answer: Option A.
<u>Explanation:</u>
A scatterplot is a type of data display that shows the relationship between two variables. It makes use of the Cartesian coordinates to plot the values of the two variables for a set of data. This is used to show how much is one variable is affected by the other variable.
Since in the scatterplot which is being talked about in this question, it is scattered and is not clustered, this shows that there is no relationship between the size of the school and the number of the students who play instruments in the school.
Answer:
a) 
b) 
Step-by-step explanation:
Part a
Since the buoy oscillates in simple harmonic motion the equation to model this is given by:

For this case from the info given we know that:

"It returns to its high point every 10 seconds." That means period =10
, and the angular frequency can be founded like this:

Assuming that the value for the phase is
our model equation is given by:

Part b
From definition we can obtain the velocity with the derivate of the position function and if w calculate the derivate we got this:


Answer:
Its 1.85 x 10 to the 13th power
Step-by-step explanation:
Ans A
<span>look at the graph for x = 2.... </span>
<span>2^4 = 16 ..and the graph looks like it approx = 8 for x=2 </span>
<span>this suggests (1/2)x^4 </span>
<span>you can eliminate answers C and D straight off because the graph is never negative</span>
Answer: $58.50
Explanation: In order to find the sale price of the dress, we first need to find the discount. The formula for discount is shown below.
Original Price × Rate of Discount = Discount
So here, the original price is $78 and the
rate of discount is 25% off or .25.
So we multiply (78)(.25) to get 19.50 so the discount is $19.50.
Now we can find the sale price.
The formula for sale price is shown below.
Original Price - Discount = Sale Price
So here, the original price is $78 and the discount is $19.50.
So subtracting 78 - 19.50, we get 58.50.
So the sale price is $58.50.