Answer:
Step-by-step explanation:
Charges of birthday party:
A ship travels 200 miles due west, then adjusts its course 30° north of west. The ship continues on this course for 30 miles. Ap
1 answer:
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Answer:
4
Step-by-step explanation:
x - length of side of larger hexagon
y - length of side of smaller hexagon
We know that,
x/y =
y =
Hence,
perimeter of = * perimeter of smaller hexagon
larger hexagon
=
The area of a garden is the amount of space the garden occupies
<em>The area of the garden is (c) 375 ft^2</em>
The given parameters are:
<em /><em> --- Length equals 15 times width</em>
The perimeter of a rectangle is:
Substitute known values
Divide through by 2
Divide through by 16
Rewrite as:
The area of a rectangle is:
Substitute
Substitute
Hence, the area of the garden is <em>(c) 375 ft^2</em>
Read more about areas at:
9514 1404 393
Answer:
y = -x^2 +3x -4
Step-by-step explanation:
We are given two points with the same y-value, so we know the axis of symmetry lies halfway between their x-coordinates, at ...
x = (1 +2)/2 = 3/2
Then the vertex form of the equation can be written ...
y = a(x -3/2)^2 +k
__
We can use two of the points to find the values of 'a' and 'k'.
<u>For (x, y) = (1, -2)</u>
-2 = a(1 -3/2)^2 +k = a/4 +k
<u>For (x, y) = (3, -4)</u>
-4 = a(3 -3/2)^2 +k = 9a/4 +k
Subtracting the first of these equations from the second, we have ...
(9a/4 +k) -(a/4 +k) = (-4) -(-2)
2a = -2
a = -1
Then k can be found from the first equation.
-2 = -1/4 +k
k = -1 3/4
So, the vertex form equation is ...
y = -(x -3/2)^2 -7/4
__
Expanding this, we can find the standard form.
y = -(x^2 -3x +9/4) -7/4)
y = -x^2 +3x -4
