Answer:
![5 {x}^{2} + 10](https://tex.z-dn.net/?f=5%20%7Bx%7D%5E%7B2%7D%20%20%2B%2010)
Step-by-step explanation:
The area of a rectangle is
![length \times width](https://tex.z-dn.net/?f=length%20%5Ctimes%20width)
The width of the rectangle is given in terms of x as
![w = {x}^{2} + 2](https://tex.z-dn.net/?f=w%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%202)
The length of the rectangle is given as:
![l = 5](https://tex.z-dn.net/?f=l%20%3D%205)
To find the area of the rectangle we multiply the two expressions to get:
![5 \times ( {x}^{2} + 2)](https://tex.z-dn.net/?f=5%20%5Ctimes%20%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%202%29)
We expand to get:
![5 {x}^{2} + 10](https://tex.z-dn.net/?f=5%20%7Bx%7D%5E%7B2%7D%20%20%2B%2010)
Answer:
Step-by-step explanation:
id like to help but i cant see the attachment :(
Answer:
See below.
Step-by-step explanation:
Pi ( written as the Geek letter π) is a universal constant found by dividing the circumference of a circle by it's diameter. So if you measure the diameter of a circle you can calculate it's circumference by multiplying by π.
Circumference = π * diameter.
It's value to the nearest hundredth is 3.14 but its actual value is a decimal number that goes on without bounds. That is in Maths it is irrational and can't be written accurately as a fraction.
Answer:
Original cost = $16.40
Tax=9℅
Tip=20℅
Total cost is,
=16.40+ 16.40×9℅+ 16.40×20℅
=16.40 +16.40×9 /100+16.40×20 /100
= 16.40+1.476+3.28
=$21.156
You would have to set the equation to the profit Jennifer got, which you know to be 63 dollars:
63=0.5e-5
To begin solving for e, which represents the number of erasers sold, add five to each side to get e alone.
68=0.5e
Multiply each side by two to get a whole x value on the right side
136=e
Jennifer sold 136 erasers