Answer:
x=-1±4√31/3 ft is the height
Step-by-step explanation:
let the height be x ft.
then the length would be 3x+2
area = L*H= x(3x+2)
165=3x²+2x
0= 3x²+2x -165
dividing the whole equation by 3
0=x²+2x/3-55
(x)²+2(x)(1/3) +(1/3)² -55 -(1/9)=0
(x+1/3)²- 495-1/9=0
(x+1/3)²= 496/9
taking square root on both sides
(x+1/3)= ±4√31/3
x= ±4√31/3-1/3
x=-1±4√31/3 ft is the height
Answer:
The pipe through which food and air passes through.
Step-by-step explanation:
Alimentary canal is also known as the food pipe and the trachea. Alimentary canal is connected to the mouth. After mechanical digestion occurs in the mouth by teeth and salivary glands, the food passes through the alimentary canal and it takes the food to other organs of the body.
Answer:
Below in bold.
Step-by-step explanation:
Circumference = π * diameter
= π * 7
= 20.99 cm to nearest hundredth.
Radius of the circle = 1/2 * diameter = 7/2
= 3.5cm.
Area = π r^2
= π * 3.5^2
= 38.48 cm^2 to nearest hundredth.
Answer:
Assuming you mean from $60 to $45, that would be 25%.
Step-by-step explanation:
We can use the simple formula: ![\frac{NEW-OLD}{OLD} *100](https://tex.z-dn.net/?f=%5Cfrac%7BNEW-OLD%7D%7BOLD%7D%20%2A100)
In this case:
Which means there is a 25% discount.
Answer:1.09090909091
Step-by-step explanation: