Answer:
Step-by-step explanation:
C=pi d, here d=4 so
C=pi X 4
Answer:
7
Step-by-step explanation:
If range is 6 then the difference between highest and lowest is 6 so 1 + 6 = 7 so b is equal to 7.
Hello!
First you have to list the data in both classes
Class A
41, 42, 45, 46, 47, 48, 52, 53, 54, 59, 61, 61, 64, 68, 71, 82, 85, 90
Class B
41, 42, 59, 62, 64, 69, 71, 75, 77, 78, 78, 80, 83, 84, 84, 86, 86, 87, 92, 92, 95
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First we are going to find the mode and mean of class A
The mode is the number that appears the most
The number that appears the most is 61
The mode is 61
To find the mean you add all the numbers together and divide the sum by the amount of numbers added
41 + 42 + 45 + 46 + 47 + 48 + 52 + 53 + 54 + 59 + 61 + 61 + 64 + 68 + 71 + 82 + 85 + 90 = 1069
Divide this by the amount of numbers added
1069 / 18 = 59.3888...
The mean is 59.3888
The mode is 61 and the mean is 59.39 for class A
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We are going to find the range and median for class B
To find the range you subtract the smallest number from the largest on
The smallest number is 41
The largest number is 95
Subtract these
95 - 41 = 54
The range is 54
To find the median you list the numbers from least to greatest and look for the number in the middle
41, 42, 59, 62, 64, 69, 71, 75, 77, 78, 78, 80, 83, 84, 84, 86, 86, 87, 92, 92, 95
The number in the middle is 78
The range is 54 and the median is 78
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Hope this helps!
Step-by-step explanation:
The first possibility
2(width) + 2(length) = perimeter
2(3x-3) + 2(length) = 10x+6
6x - 6 + 2(length) = 10x+6
2(length) = 4x + 12
length = 2x + 6
The second possibility.
rondhesha chodado in The width of a rectangle is 3x – 3. Its perimeter is 10x + 6. Find the length of the rectangle.
So you have the perimeter, P, can be found by doing u+u+v+v.
Simplifying gives:
P=2u+2v.
You are given the width is (3x-3). Choose this to be u or v but not both.
Perimeter is given a (10x+6).
Let's plug this in:
(10x+6)=2(3x-3)+2v
We are solving for v.
First step: Distribute where you can:
10x+6=6x-6+2v
Now we want to isolate v.
So we will need to subtract (6v-6) on both sides:
(10x+6)=2v
- (6x -6)
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4x+12 =2v
The right hand side contains a factor of 2.
The left hand side does too since 4x+12 can be factored as 2(2x+6).
2(2x+6)=2v
This implies v is 2x+6.
Let's check our work.
We have two sides with measurement 2x+6: (2x+6)+(2x+6)=4x+12
We have two sides with measurement 3x-3: (3x-3)+(3x-3)= 6x-6
Let's add those sums to find the perimeter: 10x+6
That is the intended
