Answer:
4x-5=6 is the equation.
Step-by-step explanation:
What you do is look at the product part. That means multiplying.
Less than means subtraction.
Equals to means equals of course so the equation is
4x-5=6.
Answer:
-7
Step-by-step explanation:
Step-by-step explanation:
A baseball field is in the shape of a square (or diamond). Home plate and second base are opposite corners of each other. So the distance is equal to the diagonal of the square.
Use Pythagorean theorem to find the diagonal, or use properties of a 45-45-90 triangle.
Using Pythagorean theorem:
c² = a² + b²
c² = (90 ft)² + (90 ft)²
c = 90√2 ft
c ≈ 127 ft
First, lets create a equation for our situation. Let
![x](https://tex.z-dn.net/?f=x)
be the months. We know four our problem that <span>Eliza started her savings account with $100, and each month she deposits $25 into her account. We can use that information to create a model as follows:
</span>
![f(x)=25x+100](https://tex.z-dn.net/?f=f%28x%29%3D25x%2B100)
<span>
We want to find the average value of that function </span>from the 2nd month to the 10th month, so its average value in the interval [2,10]. Remember that the formula for finding the average of a function over an interval is:
![\frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1} }](https://tex.z-dn.net/?f=%20%5Cfrac%7Bf%28x_%7B2%7D%29-f%28x_%7B1%7D%29%7D%7Bx_%7B2%7D-x_%7B1%7D%20%7D%20)
. So lets replace the values in our formula to find the average of our function:
![\frac{25(10)+100-[25(2)+100]}{10-2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B25%2810%29%2B100-%5B25%282%29%2B100%5D%7D%7B10-2%7D%20)
![\frac{350-150}{8}](https://tex.z-dn.net/?f=%20%5Cfrac%7B350-150%7D%7B8%7D%20)
![\frac{200}{8}](https://tex.z-dn.net/?f=%20%5Cfrac%7B200%7D%7B8%7D%20)
![25](https://tex.z-dn.net/?f=25)
We can conclude that <span>the average rate of change in Eliza's account from the 2nd month to the 10th month is $25.</span>
Answer: a continuous random variable
Step-by-step explanation:
<u><em>Can you count the distance it traveled?</em></u> You can't, so it couldn't be discrete because you can count discrete variables.
<u><em>Can you measure the distance it traveled? </em></u>You sure can, that makes it a continuous random variable.
<u><em>Do you know the exact distance it's going to travel?</em></u><u> </u>You won't, therefore it's a random variable since you don't know the value beforehand.