Anyone, ? ? with those 3 questions?

#1: 7a-2

#2: 6 3/7

#3: -40/21

Step-by-step explanation:

For the first problem *the one for the perimeter of the triangle*, the perimeter of a triangle is just the three sides added up. If your problem wants us to write an equation, you'll have to add the three sides.

(2a-3)+(3a+1)+2a which is (when you simplify it even further), 2a-3+3a+1+2a, and the answer is 7a-2.

For the second problem *the one asking you for the value of x*, you know now that the perimeter of the triangle is 47 meters. This means, that a is an unknown number and you are solving for it. 7 times this unknown number plus 2 would be equal to 47.

Equation: 7a+2=47

7a=47-2

7a=45

a=45/7

a= 6 3/7

For the third problem, *the simplify fractions one*, you'll need to take the -4/3 out of the parentheses. If you do that, the + and the - will make a -. Now, the equation is: -4/7-4/3=?

You need to find an LCM. In this case, it can be 21.

You don't need to worry about the negative signs because when you have a negative minus a negative, the number increases. Now, your final answer will be -40/21.

I hope this helps :D

2? if not the correct answer you might need to provide more information

step-by-step explanation:

answer: e 9, 5.75

step-by-step explanation:

step 1

find the variation ab in the x coordinate

delta x=(x2-x1)=10-> 8 units

find the variation ab  in the y coordinate 

delta y=(y2-y1)=6-> 2 units

step 2

find the coordinates point c

  x coordinate 

cx=ax+delta x*2/> cx=2+8*(2/> cx=3

  y coordinate 

cy=ay+delta y*2/> cy=4+2*(2/> cy=4.25

the coordinates of point c are (3,4.25)

step 3

find the coordinates point d

  x  coordinate 

dx=ax+delta x*4/> dx=2+8*(4/> dx=4

  y  coordinate 

dy=ay+delta y*4/> dy=4+2*(4/> dy=4.5

the coordinates of point d are (4, 4.5)

step 4

find the coordinates point e

  x  coordinate 

ex=ax+delta x*4/> ex=2+8*(6/> ex=5

  y  coordinate 

ey=ay+delta y*4/> ey=4+2*(6/> ey=4.75

the coordinates of point e are (5, 4.75)

step 5

find the coordinates point f

  x  coordinate 

fx=ax+delta x*4/> fx=2+8*(8/> fx=6

  y  coordinate 

fy=ay+delta y*4/> fy=4+2*(8/> fy=5

the coordinates of point f are (6,5)

step 6

find the coordinates point g

  x  coordinate 

gx=ax+delta x*4/> gx=2+8*(10/> gx=7

  y  coordinate 

gy=ay+delta y*4/> gy=4+2*(10/> gy=5.25

the coordinates of point g are (7,5.25)

step 7

find the coordinates point h

  x  coordinate 

hx=ax+delta x*4/> hx=2+8*(12/> hx=8

  y  coordinate 

hy=ay+delta y*4/> hy=4+2*(12/> hy=5.5

the coordinates of point h are (8,5.5)

step 8

find the coordinates point i

  x  coordinate 

ix=ax+delta x*4/> ix=2+8*(14/> ix=9

  y  coordinate 

iy=ay+delta y*4/> iy=4+2*(14/> iy=5.75

the coordinates of point i are (9,5.75)

- r3ktforgood ☕