By the , the sum of the angles in a triangle is equal to 180°. therefore, m? a+m? b+m? c=180° . using the , (5x)°+90°+(x+10)°=180° . to solve for x, first combine like terms to get 6x + 100 = 180. using the , 6x = 80. then, using the division property of equality, x = 1313 . to find the measure of angle a, use the substitution property to get m? a=5(13113)° . finally, simplifying the expression gets m? a=6623° .

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

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

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )