In the following square, fill in all angles and side lengths.

Step-by-step explanation:

the shape is a square (meaning all sides are equal)

CR = AR = CA=AT=AR=AT=RT=RS=ST=CS=4

the triangle in a square is an equilateral triangle meaning all sides are equal

the sum of angles in a triangle is 180°

all the angles in each triangle is 180/3 = 60°

the sum of angles in a square is 360

the angles at each angles ∠A =∠T=∠S= ∠C = 360/4 = 90°

entering that problem on the tube might get you an answer

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form