Answer:
Answer: 21 inches
Step-by-step explanation:
I got it right so this should help
if you want the explanation i can give that to u just comment
I'm pretty sure the answer is the top right one because it looks really messed up. i mean, mi/hr*min doesn't equal mi, but im not too sure about the conversion part.
To create a perfect square trinomial, halve the x coefficient, square it, and then add that value.
In the case of x² + 6x, we would have 6 to get 3, then square 3 to get 9.
We would add 9 to make a perfect square trinomial.
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</u><u>Why this works</u>
A perfect square trinomial is designed to factor to some value (x+n)².
When you FOIL this you get x² + 2nx + n².
As you can see, if you wanted to find the value of that n², you could take that x coefficient 2n, halve it to get n, and then square it to get n²!
Area of a triangle = (bh)/2
a = bh/2
a * 2 = bh
(a * 2)/b = h
(27 * 2)/6 = h
54/6 = h
9 = h
I think the first on is A the second one D and the third one B