Which list gives the side lengths of the triangle in order from shortest to longest a. ∠r, ∠s, ∠t b. sr, rt, st c. st, tr, sr d. ∠t, ∠s, ∠r

Option C. (ST, TR, SR)

WORKINGS

Given,

m∠R = 37

m∠S = 50

m∠T = ?

m∠R + m∠S + m∠T = 180 (Sum of angles in a triangle)

37 + 50 + m∠T = 180

87 + m∠T = 180

Subtract 87 from both sides of the equation

87 – 87 + m∠T = 180 – 87

m∠T = 93

Therefore the angles of the triangle, in order from smallest to largest: ∠R, ∠S, ∠T

∠R is opposite ST

∠S is opposite TR

∠T is opposite SR

Therefore, the side lengths of the triangle in order from shortest to longest: ST, TR, SR (Option C)

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a