Alisa's family planted 7 trees in their yard. the
park down the street has 147 trees. alisa guessed
that the park has either 11 or 31 times as many
trees as her yard has. is either of alisa's guesses
correct? use the equation 7n = 147 to justify
your answer.

Neither of Alisa's guesses were correct.

Step-by-step explanation:

7 × 11 = 77

7 × 31 = 217

To find how many times more trees the park has, you divide 147 by 7 and you get 21.

Hope this helps!

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1