Answer:
Step-by-step explanation:
Quadratic formula: 
Hope this helps and God bless!
Answer:
Step-by-step explanation:
Let the length of the arc of the sector which subtend angle of 30°,2πrx°/360 where x°=30°, this can also be written as πrx°/180 .Perimeter of a sector
2r+ arc length.
Now let the arc length = 22/7 x r x 30/180; this gives, 11r/21cm. Therefore the perimeter = r + r + 11r/21 = 210.
Solving for r in the equation
2r + 11r/21 = 210, multiply through by 21, we now have 42r + 11r = 4410
53r = 4410; divide through by 53, r = 83.2cm. Therefore the length of the arc = 11r/21, 11 x 83.2/21 = 43.6cm.
Check: 2r + 11r/21, 2 x 83.2 + 43.6 = 210cm.
Therefore the radius of the sector
r = 83.2cm.
Answer:
800ft
Step-by-step explanation:
3000 - 2200 = 800
Chow,...!
Using the given table, it is found that the mean number of children per household for these families is of 2.33.
<h3>What is the mean?</h3>
The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.
Researching the problem on the internet, the table states that:
- 2 households have 4 children.
- 16 households have 2 children.
- 13 households have 3 children.
- 5 households have 1 children.
The total number of children is given by:
T = 2 x 4 + 16 x 2 + 13 x 3 + 5 x 1 = 84
Hence the mean number of children for the 36 households is given by:
M = 84/36 = 2.33.
More can be learned about the mean of a data-set at brainly.com/question/24628525
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AB = 2x + 3
Just subtract the 3x - 1 from 5x + 2 = 2x + 3 is AB
x = 2
AB = 12
MB = 7
AM = 5
Hope this helps.
