Hello,

Let's to remember,

To the perfect square:

X^2 +12x = -6

We would have to add 6^2

Because,

X^2 + 2.(6X) = -6

As (x+k) = x^2 +2xk +k

And,

2xk = 2.6x

xk = 6x

K = 6

Then,

(X+k)^2 = x^2 + 2xk+k^2

= x^2+2.x.6+6^2

= x^2+6x+36

We would to add 36, and would stay:

X^2 + 6X = -6

x^2 +6x + 36 = -6 +36

X^2 +2.6x +6^2 = 30

(X+6)^2 = 30

Answer is the letter A)

5 0

4 years ago

Peter,Frank and dave had 15 play cars to share between themselves how many play toys would each person receive?

Luda [366]

Answer 5!

Explanation;;
your dividing 15 among 3 people. Since 3 x 5 is 15, then when you divide you should get 5. 5 + 5 + 5 is 15!

please bark brainlist!

6 0

2 years ago

An engineer would like to design a parking garage in the most cost-effective manner. He reads that the average height of pickup

pentagon [3]

The answer is: H0: μ = 76.4 versus Ha: μ > 76.4, where μ = the true mean height of all trucks.

4 0

2 years ago