Write out all steps.
Answers
Answer:
4/pi
Step-by-step explanation:
The area of the square is
A = s^2
The area of the circle is
A = pi r^2
The diameter of the circle is s, we need to find the radius
d = 2r
s =2r
Divide by 2
s/2 = r
A = pi *(s/2) ^2
A = pi (s^2/4)
We want the ratio of the A square/ A circle
s^2/ pi (s^2/4)
The s^2 cancels
1/ pi (1/4)
4/pi
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Simplify the expression below. 1/2 • 6+ 9 - (18÷6)
Answers
Answers
∴
Hi there!
To see which fraction is greater, I like to divide the numerator by the denominator of each of the fractions, and then see which decimal is larger. I'll show you what I mean. :)
9 ÷ 10 = 0.9, right? Set this answer aside.
5 ÷ 6 = 0.83
Now, we compare the two fractions. If you are having trouble setting them aside from one-another, multiply the decimals by 100 to see what your percent will be.
0.9 × 100 = 90
0.83 × 100 = 83
So, we now see that 9/10 was greater than 5/6. You were right!
Hope this helps! :D
Message me if you need anything else, I would be happy to help!
Answers
Steps to solve (Please note, steps will be in numerical order.)
1.To start off you have to find the lCD of
2. Now, rewrite the fraction
3. You only have to add
4. First, add the numerators 3+4 which is 7. Remember when adding fractions the denominator stays the same.
5. In conclusion, you're final answer should be
Hope This Helped :)
Answers
196a² is the square of 14a , and b² is the square of 'b' .
Is there something you need done with the expression ?
Answers
scale factor=0.4
Explanation
The scale factor for any transformation is the ration of the image distance to the object distance.
That is the ratio of distance from the origin to the image to the distance from the origin to the object.
In the case above, OR’is the image distance and OR is the object distance.
OR’ = √(〖1.2〗^2+〖3.6〗^2 )=√14.4=3.794733192
OR = √(3^2+9^2 )=√90=9.486832981
The scale factor = 3.794733192/9.486832981
=0.4
Answer: 0.4
Step-by-step explanation:
We know that the a scale factor for dilation about the origin, O is the ratio of the coordinates of the image to the coordinates of the pre-image.
Given : ΔRST is dilated about the origin, O, to create ΔR'S'T'. Point R is located at (3, 9), and point R' is located at (1.2, 3.6).
Then , the scale factor for dilation is given by :-
Therefore , the scale factor was used to perform the dilation= 0.4.
b.if the rectangular floor has dimension of 420" by 630"
c.how many big square tiles are needed to cove rthe rectangular floor?
d.if each small tile costs P15.00 and each big tile costs P60.00which which tile should emmanuel use to econimize in tiling his floor? why?
Answers
The 8" by 7" tile covers 49 square inches.
The 21" by 21" tile covers 441 square inches.
b).
The area of the floor is (420" x 630") = 264,600 square inches.
c).
It would take (264,600) / (441) = 600 large tiles to cover the floor.
d).
Emmanuel should use the big tiles to cover his floor.
-- A big tile costs 4 times as much as a small tile, but it has 9 times
as much area as a little tile has, so it is a better buy.
-- Plus, he would have to pay the floorman a lot more to glue down 5,400 tiles
than he will have to pay to glue down only 600 tiles.
-- Since he has hired my services to advise him, I will charge him only 15%
of the difference if he takes my advice, so he will still be money ahead.