Actividad 7 Competencias a desarrollar: CD1, CG5, CG5.1, CG8, CG8.2
Resuelve los siguientes triángulos oblicuángulos y compara tus resulta-
dos con tus compañeros.

Usando ley de Senos Y COSenos.

A.
anguloB = 27°50'

ángulo C = 50°

a = 42

B.

a = 78
angulo A = 830

angulo B = 40°

C.

b = 50

angulo B = 58°

angulo C = 78.5°

D.
c = 24.8

angulo B = 52°21'

angulo C = 29°30'​

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

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d

step-by-step explanation:

the two points from this line are   (0,4)   & (2,-2)

we can call

now, lets find the slope (m):

now finding b (the y intercept). this is the point at the y-axis where the line cuts the axis. looking at the graph, it is y = 4. so the point is 4. hence b = 4

the slope-intercept form is given by  

putting the points, we have:

d is the correct answer.