The depth d centimeters of a river was recorded each day during a period of one year (365 days) when the frequency curve
300
frequency 200
100
ie
20
30
40
SO
60
70
depth, d (cm)
(a) Use the cumulative frequency curve to find
the median depth
(i) the inter-quartile range.
(1) the depth at the 40 percentile,
(iv) the number of days when the depth of the river was at least 25 cm.

no one knows lol

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

assuming this is from a math graphing problem.

7 would be on the x-axis which is the horizontal line on the graph

84 would be on the y-axis which is the vertical line on the graph