Jessica and Noel record the number of pictures they posted on their social media sites each month over the last year. The results are shown in the box plots below. Which statement is true?
The median number of pictures posted by Noel each month is greater than the median number of pictures posted by Jessica each month.
The median number of pictures posted by Jessica each month is equal to the median number of pictures posted by Noel each month.
Jessica's data has a larger overall spread than Noel's data.
The interquartile range of Noel's data is greater than the interquartile range of Jessica's data.

answer: (1,3) and (-2,0) i think.

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

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50