Answer:
<u>The fence need to be 144 feet length</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Radius (r) of the circular garden = 25 feet
Measurement of the angle to the garden = 30°
2. How long, to the nearest foot, does the fence need to be?
Let's recall that the formula of the circumference is:
c = 2πr
Upon saying that, let's also recall that the circumference of a circle is the length of the 360 degree arc of that circle. Since we know that the circumference of a 360 degree arc is 2Πr, we can calculate the length of various arcs of a circle, provided that we know the radius of such a circle. The length of an arc of n degrees equals (n/360) times the circumference. In our question, n = 330 because Ashley wants to maintain an opening of a central angle of 30 degrees.
x = Length of the fence
π = 3.1416
Now, we can solve for x, this way:
330/360 = x/50π
360x = 330 * 50π
360x = 330 * 157.08
360x = 51,836.4
x = 51,836.4/360
x = 143.99 or 144 (rounding to the nearest foot)
The fourth question is an independent event and that Leanna can choose from 3 choices. Only 1 of the 3 choices is right. Therefore, the probability of getting the correct answer is 1/3. The answer is letter C. 1/3.
Answer:
SA= 552.92
Step-by-step explanation:
You are solving for the surface area of a right cylinder. The equation for a right cylinder is:
SA=2πrh+2πr^2
The radius is 8 and the height is 3 so plug those in:
A=2π(8)(3)+ 2π(8)²
Solve this out using pie as 3.1415
The answer would be 552.92
Answer: B.) $1,383.53
Step-by-step explanation:
Given: The total number bricks required to make the wall= 830
The speed of crew= 300 bricks/hour
Total hours they take to make the wall= 
The cost of labour =$4,000 per eight-hour
⇒The cost of labour for 1 hour = 
Now, the cost of wall= 
Hence, B is the right answer, the cost of the new wall= $1383.53
Answer:
This one is hard but I think again think is A.
Step-by-step explanation:
