B. Complete the proportion to compare the first two triangles. b/c=

c. Cross-multiply the ratios in part b to get a simplified equation.

d. Complete the proportion to compare the first and third triangles.
c/a=

e. Cross multiply the ratios in part d to get a simplified equation.

f. Complete the steps to add the equations from parts c and e. This will make one side of the Pythagorean theorem.
part c: b^2= _
part e: a^2= _
a^2+b^2= _
g. Factor out a common factor from part f.
a^2+b^2=_(_)+(_)

g. Factor out a common factor from part f.

a^2 + b^2=__ (__+__)

h. Finally, replace the expression inside the parentheses with one variable and then simplify the equation to a familiar form. HINT: Look at the large triangle at the top of this problem.
a^2+b^2=___(___)
a^2+b^2=___

answer: the value of x is 7cm

step-by-step explanation:

it is not that hard all u have to do is plot the graph

step-by-step explanation:

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