What Is the perimeter of a=4 and b=2

Perimeter would be 12 because you add 2a+2b

Step-by-step explanation:

Since perimeter is adding all the sides you have to add 4+4+2+2

32

Step-by-step explanation: A=4, b=2

Top side  3b this means 3(2)=6

The bottom side measurement is the same 6

The left side 3a - b means 3(4) - 2 = 10

The right side measurement is the same as the left 10

Don't forget is a rectangle ( In a rectangle, all the angles are the same, and the opposite sides are the same length and are also parallel.)

The perimeter is the sum of all sides:

Therefore, 6 + 6 + 10 + 10 =32

Hope this help!

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c