54.01 x 10^-2 , 5401 x 10^-4 , 5.401 x 10^-1 , 540.1 x 10^-3
These are the possible choices you can use to make this answer to a scientific notation.
Hope that helped!!
10x+13
Step-by-step explanation:
Step 1:
1)
The perimeter of any given triangle is the sum of all its sides.
For example if we have a triangle with sides x,y,z then the perimeter of this triangle can be obtained by taking the sum of the sides. So in this case , the perimeter would be x+ y+ z
Step 2:
Given that the sides of the triangle are 2x+5 , x+8 , 7x
To find the perimeter of this triangle we need to sum the given sides.
This would be
2x+5+x+8+7x = 10x + 13
So the perimeter of the given triangle is 10 x + 13
I think r should equal 32/7
Step by step:
first you need to plug in the x into the equation
-5(4)-18-7(4)
now you solve
-20-18-28
which equals
-66