Which ratio is equivalent to 9 : 180? A. 5 : 200
B. 12 : 240
C. 10 : 400
D. 8 : 560

B

Step-by-step explanation:

9 : 180 = 1 : 20

5: 200 = 1:40

12:240 = 1 : 20

10 : 400 = 1 : 40

8 : 560 = 1 : 70

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step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b