Answer:
The answer is A because the base has to be positive.
Step-by-step explanation:
Answer:
0.105 or 21/200
Step-by-step explanation:
2/8= 0.375 cups
0.375x0.72= 0.27 cups or 27/100
0.375-0.27= 0.105
The total surface area of the given pyramid is:
A = 39ft²
<h3>
How to get the surface area of the given figure?</h3>
The total surface area will be equal to the sum of the areas of the square and the 4 triangles.
Remember that for a square of side length S, the area is:
A = S².
In this case, S = 3ft, then:
A = (3ft)² = 9ft².
Now, the area of a triangle of base B and height H is:
A = B*H/2.
Here we can see that the triangles have a base of 3ft (the sides of the square) and a height of 5ft, then the area of each triangle is:
A = (3ft)*(5ft)/2 = 7.5 ft²
Then the total area of the figure is:
A = 4*(7.5 ft²) + 9ft² = 39ft²
If you want to learn more about pyramids:
brainly.com/question/10042135
#SPJ1
Answer:
each car travel in one revolution in terms of π .
270.04 feet each car travel in one revolution .
Step-by-step explanation:
Formula
![Circumference\ of\ a\ circle = 2\pi r](https://tex.z-dn.net/?f=Circumference%5C%20of%5C%20a%5C%20circle%20%3D%202%5Cpi%20r)
Where r is the radius of the circle .
As given
A Ferris wheel has a diameter of 86 ft.
![Radius = \frac{Diameter}{2}](https://tex.z-dn.net/?f=Radius%20%3D%20%5Cfrac%7BDiameter%7D%7B2%7D)
![Radius = \frac{86}{2}](https://tex.z-dn.net/?f=Radius%20%3D%20%5Cfrac%7B86%7D%7B2%7D)
= 43 feet
Thus
![Circumference\ of\ a\ circle = 2\times 43 \pi](https://tex.z-dn.net/?f=Circumference%5C%20of%5C%20a%5C%20circle%20%3D%202%5Ctimes%2043%20%5Cpi)
Therefore
each car travel in one revolution in terms of π .
Now
π = 3.14
= 270.04 feet
Therefore 270.04 feet each car travel in one revolution .
Answer:
11.1 =x
Step-by-step explanation:
Since we have a right triangle, we can use trig functions
cos theta = adjacent side/ hypotenuse
cos 42 = x/15
Multiply each side by 15
15 cos 42 = x
11.14717238 =x
Rounding to the nearest tenth
11.1 =x