The answer that would best tell the combination of shapes that could make a piano are: 3 cylinders and a rectangular prism
<h3>How to find the shape of a piano</h3>
The shape of a piano can be gotten from the way that the piano is built. A piano is known to have a shape that is like a chord, it also has the parts that is built like a rectangular prism.
In order to get the volume of the object, the different shapes that it has would be calculated individually using their formula.
Read more on volume
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Answer:
P = 0.688
Step-by-step explanation:
Since x= 1764, n = 2565
95%. CI= ( 0.670, 0.706)
a) P= x/n
P = 1764/2565
P = 0.688
Answer:
x = +5
Step-by-step explanation:
The triangles ADB and BDC are similar. Thus it is possible to write an equation of ratios and solve it for x:
x 10
----- = -------
10 4x
Cross-multipying, we get:
4x^2 = 100, which yields x = +5
<ADB = 90 degrees
hope it helps
Multiply 2/5 by 2 to get 4/10
4/10 + 3/10 = 7/10
