Answer:
P = 28 cm
Step-by-step explanation:
The area of a square is
A = s^2 where s is the side length
49 = s^2
Taking the square root of each side
sqrt(49) = sqrt(s^2)
7 =s
Now find the perimeter of the square
P = 4s
P = 4(7)
P = 28 cm
Answer:
y = -3
Step-by-step explanation:
2 - 4(y + 1) = 2y + 16
2 - 4y - 4 = 2y + 16
2 - 4 = 6y + 16
- 2 = 6y + 16
- 18 = 6y
-3 = y
Answer:
, n < -16
Step-by-step explanation:
To write this into an inequality you need to recognize keywords. The first keyword is "sum" this means the two numbers must be added; so the first part of the inequality is 4+n. Then, it says the sum is "divided by" 2; this means both numbers must be put over two like
. Finally, this is "less than" negative. Therefore, this must be an inequality with a sign opening towards -6. So the final answer is
.
To solve the inequality isolate the variable. Multiply both sides by 2, so the new inequality is
. Next, subtract 4 from both sides. The answer is n < -16.