27.) Because the area is 60, we know that the two side lengths, x and x + 4 will multiply to equal that.
In other words,
x(x+4) = 60
Distribute the x
x^2 + 4x = 60
Complete the square:
1.) Take the middle term, 4, divide it by 2, then square it. You get 4 again.
2.) Add 4 on both sides of the equation:
x^2 + 4x + 4 = 64
3.) Factor the left side, you'll find that it is a perfect trinomial.
(x + 2)(x + 2)= 64
4.) Simplify (x + 2)^2 = 64
5.) Square root both sides:
(x + 2) = +/- 8
Because side lengths cannot be negative, it must be positive 8.
6.) x + 2 = 8
7.) Subtract 2 on both sides, you'll see that x = 6 :)
Answer:
-3
Step-by-step explanation:
6 yards because a yard equals 3 feet so if you do 18 feet divided by 3 you get 6 which is equivalent to 6 yards
Answer:
F
Step-by-step explanation:
The answer is 8.2
A is the first letter of the alphabet so
B is the second number 1 + 2 x 18 ÷ 5 = 8.2
S is the 18th letter
E is the 5th letter so... 1+2=3 x 18 = 36 <span>÷ 5 = 8.2</span>
