The fraction is 27/30. It is equivalent to 9/10 and 27 + 30 = 57.
<u>Answer</u>
C. 16 feet
<u>Explanation</u>
The area of a circle is given by the formula:
Area = πr² Where r is the radius of the circle and π = 3.1416
201.0624 = 3.1416 × r²
r² = 201.0624/3.1416
= 64
r = √64
= 8 feet
Diameter is twice the radius.
∴ diameter = 2r
= 2 × 8
= 16 feet
Answer:
7.7 km
Explanation:
Use cosine rule as here given two sides and one angle.
Cosine rule states:
a² = b² + c² - 2bc cos(A)
While solving, treat a = 7.5 km as to that opposite angle is given of 68°
then b = missing side, c = 5.2 km, A = 68°
Applying rule:
7.5² = b² + 5.2² - 2(b)(5.2) cos(68)
56.25 = b² + 27.04 - 3.8959b
56.25 - 27.04 = b² - 3.8959b
b² - 3.8959b = 29.21
b² - 3.8959b - 29.21 = 0
apply quadratic equation, Here [a = 1, b = - 3.8959, c = -29.21]




As length cannot be negative. Hence the value of b is only 7.7 km
The number of degrees in the first quadrant is 45 degrees.
<h3>Coordinates of a circle</h3>
The formula for calculating the angle in the first quadrant If the coordinates of point J are 

From the calculation above the number of degrees in the first quadrant is 45 degrees.
Learn more on circles here: brainly.com/question/24375372
According to the markings, BD = DC. From this fact
BD = DC
BD + DC = BC
18 + 18 = BC
BC = 36 <<<<<< Answer