Please Help!
The area of a rectangle is x^2 + 7x + 6. What is the perimeter of this rectangle?

  4x +14

Step-by-step explanation:

We presume the intention is that you factor the expression, then consider those factors to be the side lengths of the rectangle. The perimeter will be double the sum of those side lengths.

  x^2 +7x +6 = (x +1)(x +6)

for side lengths (x+1) and (x+6), the rectangle will have a perimeter of ...

  P = 2((x +1) +(x +6)) = 2(2x +7)

  P = 4x +14

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is