The statement " <span>y </span><span>varies directly as </span><span>x </span><span>," means that then </span><span>x </span>increases,<span>y </span><span>increases </span><span>by the same factor so we have: y/x=k
for question 1 then: 15/5=3
so the direct variation equation is y=3x
Now if x=9 you only have to replace x in your equation and you get:
y=3*9=27</span>
You would use the Volume equation L*W*H=V
2 1/2* 3 1/2* 4 1/2= 39 3/8
Considering the given area of the square, it is found that it's side length is an irrational number.
<h3>What is the missing information?</h3>
This problem is incomplete, but researching it on a search engine, it asks if the side length of the square of area 89 cm² is rational or irrational.
<h3>What is the formula for the area of a square?</h3>
The area of an square of side length s is given by s squared, as follows:
A = s².
In this problem, the area is of 89 cm², hence:
s² = 89.
s = sqrt(89).
The square root of 89 is a non-exact root, hence it cannot be represented by fraction and is an irrational number.
More can be learned about the area of a square at brainly.com/question/10489198
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Answer:
x-axis is for the independent variable
Step-by-step explanation:
She needs to have 4 hours a week for the next 7 weeks.
To make this true we know need 4x, x as for week (time).
We also need to have it done with 7 weeks, so we will need 7 weeks x 7 days which would be 49 days total.
Now to put it together,4(x) and place the number of weeks to get the total number of hours. Example on week 7 hour number of hours she played is (4*7)=28 hours total.
f(x) = 4x + 14 is the function.
14 is from the first week. Therefore, that's the function of the total hours she played.
