A cattle train left Washington and traveled toward Johannesburg. Six hours later a
passenger train left traveling at 70 km/h in
an effort to catch up to the cattle train. After traveling for four hours the
passenger train finally caught up. What
was the cattle train's average speed?
A) 28 km/h B) 25 km/h
C) 35 km/h D) 45 km/h

21

step-by-step explanation:

11279

(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

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: