You ask an employee to string holiday lights around the perimeter of a circular room. The room is 30 feet in diameter. How many
1 answer:
Answer: 94.24 feet.
Step-by-step explanation:
1. To solve this exercise you must apply the formula for calculate the perimeter of a circle, which is shown below:
Where is the radius of the circle.
2. You can calculate the radius of the circle by dividing the diameter by 2, as following:
3. Substitute this value into the formula. Then, you obtain that the result is:
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Answer:
the required matrix is can be given as
Answer:
The approximate probability is 0.7325.
Is not unlikely that a driver in that age bracket is involved in a car crash during a year, so there are reasons to be concerned.
Step-by-step explanation:
The approximate probability can be estimated using the sample proportion:
A probability of 0.7325 is high, so it is not unlikely that a driver in that age bracket is involved in a car crash during a year.
As this value is high, there is reasons to be concerned about it.
By angle addition postulate,
m(∠ABD) + m(∠DBC) = m(∠ABC)
Now substitute the values of each angle,
(5x + 5)° + (3x + 12)° = 153°
Combine like terms of the expression,
(5x + 3x) + (5 + 12) = 153
8x + 17 = 153
8x = 153 - 17
x =
x = 17
Substitute the value of 'x' to get the measure of each angle,
m(∠ABD) = (5x + 5)
= 5(17) + 5
= 90°
m(∠DBC) = (3x + 12)
= 3(17) + 12
= 63°
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