The number of cubes needed to fill the rectangular prism 4608 cubes.
<h3>How to find volume of rectangular prism and cube?</h3>
volume of rectangular prism = lwh
where
- l =length
- w = width
- h = height
Therefore,
volume of the rectangular prism = 8 × 4 × 9 / 4 = 72 inches³
volume of the cube = l³
where
Therefore,
volume = (1 / 4)³
volume of the cube = 1 / 64 inches³
Therefore,
The number of cubes needed to fill the rectangular prism = 72 ÷ 1 / 64
The number of cubes needed to fill the rectangular prism = 72 × 64 = 4608
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Answer:
cos 78⁰.
Step-by-step explanation:
Use cos 2A = cos^2 A - sin^2 A
so cos^2 39 - sin^2 39 = cos (2*39) = cos 78.
Answer:
16 workers are required to complete the work in 45 days...
Step-by-step explanation:
12 workers are required to complete the work in 60 days
so... 60*12=720 workers are required to complete the work in 1 day
Hence,
720/45 = 16 workers are required to complete the work in 45 days.
Divide both sides by 2 and rewrite too X^2 - x - 2 = 0. then factor and get x(x+1)-2(x+1)=0. separate them to (x+1)(x-2)=0 then you get x+1=0 and x-2=0 and solve and X equals -1 & 2
Answer:
Area of one piece of pizza ≈ 12.83 inches
Step-by-step explanation:
First of all let's calculate the area of the pizza.
Pizza is circular in shape, thus,
Area; A = πr²
We are given the radius;r = 7 inches
So, A = π(7²) = 153.94 in²
Now, since the area is divided into 12 equal sized pieces, thus we will divide the total area we got by 12 to get the area of one piece.
Area of one piece of pizza = 153.94/12 ≈ 12.83 inches
