Estimate . then find the difference 4.23-2.51

1.72

Step-by-step explanation:

1.5 estimate

difference = 1.72

Step-by-step explanation:

Estimate  4.23 as 4  and 2.51 as 2.5

estimate is  4 - 2.5  = 1.5.

Find difference

4.23 - 2.51 = 1.72

54.864 meters

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