The answer is B)81.33 square units
Answer:
8) answer=5 9)answer=15
Step-by-step explanation:
all you have to do is replace in the following formula
![\sqrt{(x2-x1)^{2}+ (y2-y1)^{2}} =d](https://tex.z-dn.net/?f=%5Csqrt%7B%28x2-x1%29%5E%7B2%7D%2B%20%28y2-y1%29%5E%7B2%7D%7D%20%3Dd)
Where
X1: is the first number of the first point
Y1: is the second number of the first point
X2: is the first number of the second point
Y2: is the second number of the second point
you replace in the formula and solve
I attach solution
Answer:
(4,5 feet)³=4,5³ cubic feet
Step-by-step explanation:
Answer:
44
Step-by-step explanation:
you do 5x7 35 and 6x3 then divided by 2 is 9 and you add them up and you get 44.
Alternate solution. 5x3 divded 2 =7.5 plus 6x3 divided by 2 = 9 plus 7x ? = 27.5!
As we can see on the picture we have a rectangle and half of circle.
The areas for half circle and rectangle are:
![A_{rectangle}=a\cdot b \\A_{halfcircle}=\frac{A_{circle}}{2}=\frac{\pi r^2}{2}](https://tex.z-dn.net/?f=%3C%2Fp%3E%3Cp%3EA_%7Brectangle%7D%3Da%5Ccdot%20b%20%5C%5C%3C%2Fp%3E%3Cp%3EA_%7Bhalfcircle%7D%3D%5Cfrac%7BA_%7Bcircle%7D%7D%7B2%7D%3D%5Cfrac%7B%5Cpi%20r%5E2%7D%7B2%7D%3C%2Fp%3E%3Cp%3E)
The area of the figure is the sum of the area of half circle and rectangle. Also the height of a rectangle (6ft) is a diameter of a half circle therefore the radius of half circle is 6ft ÷ 2 = 3ft.
Now we calculate the areas.
![A_{rectangle}=10\cdot 6=\underline{60} \\A_{halfcircle}=\frac{3.14\cdot3^2}{2}=\underline{14.13} \\A_{total}=A_{rectangle}+A_{halfcircle} =60+14.13=\boxed{74.13\approx74}](https://tex.z-dn.net/?f=%3C%2Fp%3E%3Cp%3EA_%7Brectangle%7D%3D10%5Ccdot%206%3D%5Cunderline%7B60%7D%20%5C%5C%3C%2Fp%3E%3Cp%3EA_%7Bhalfcircle%7D%3D%5Cfrac%7B3.14%5Ccdot3%5E2%7D%7B2%7D%3D%5Cunderline%7B14.13%7D%20%5C%5C%3C%2Fp%3E%3Cp%3EA_%7Btotal%7D%3DA_%7Brectangle%7D%2BA_%7Bhalfcircle%7D%20%3D60%2B14.13%3D%5Cboxed%7B74.13%5Capprox74%7D%3C%2Fp%3E%3Cp%3E)
The area of the figure is approximately 74ft squared.
Hope this helps.
r3t40