Answer:
7.73cm^2
Step-by-step explanation:
The equation for area of a circle is a= pie r^2. Now plug in pie as 3.14 and you radius which would be 3 because the image is showing the diameter as 6 and radius is half the diameter. The equation is now a=3.14 x3x3. The area of the circle would be 28.27cm^2.
Now we must find the area of the square. To do this multiple the diameter which is 6 times itself. 6x6=36. The area of the square is 36cm^2.
Now subtract the square area from the circle area. 36 - 28.27 = 7.73. The left over plywood would be 7.73cm^2.
I hope this helps! If you have anymore questions feel free to ask! :D
Answer:
4.333 meters
Step-by-step explanation:
Given:
We are told that the rope is cut into two pieces and that one (longer) piece is twice the length of the other (short) piece
let the length of the short piece = x meters
hence the length of the longer piece = 2x meters
we are also given that the total length of the two pieces is 6.5m
hence,
length of short piece + length of long piece = 6.5 m
in equation form:
x + 2x = 6.5
3x = 6.5 (divide both sides by 3)
x = 6.5/3 meters
we are asked to find the length of the long piece (i.e 2x)
hence
2x = 2 (6.5/3) = 4.333 meters (answer)
Answer:
Yes because they are both in the hundredths place
Step-by-step explanation:
Step-by-step explanation:
but that is the easiest of all 4 questions (by far) :
3g(x) + h(x) = 3×(5x² + 3) + 9x² = 15x² + 9 + 9x² = 24x² + 9
which is exactly f(x) = 24x² + 9
so, yes, they are equal.
I really have to wonder, since you correctly solved 1-3, what was the issue with 4. ?
Number of rooms left excluding a quarter of 140 is: 105 rooms.
<h3>What is a Quarter of a Number?</h3>
A quarter is one-fourth. A quarter of a number is therefore, one-fourth of that number or 1/4 part of the number.
Therefore, number of rooms cleaned = 1/4(140) = 35.
A quarter of the 140 rooms is: 35.
Number of rooms left for cleaning in the afternoon = 140 - 35
Number of rooms left for cleaning in the afternoon = 105 rooms.
Learn more about a quarter on:
brainly.com/question/334801
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