A field is a rectangle with a perimeter of 1120 feet. The length is 100 feet more than the width. Find the width and length of t
1 answer:
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So remember that area of a rectangle is a = bh. In this case, our sides are 2 and n - 3 (three less than unknown number) and our area is 22. Using our info, we can form the equation: . From here we can solve for n.
Firstly, foil 2(n-3):
Next, add 6 on both sides of the equation:
Next, divide both sides of the equation and your answer will be 14 = n. In context, the value of the unknown number is 14 in.
Answer:
The equation of ellipse centered at the origin
Step-by-step explanation:
given the foci of ellipse (±√8,0) and c0-vertices are (0,±√10)
The foci are (-C,0) and (C ,0)
Given data (±√8,0)
the focus has x-coordinates so the focus is lie on x- axis.
The major axis also lie on x-axis
The minor axis lies on y-axis so c0-vertices are (0,±√10)
given focus C = ae = √8
Given co-vertices ( minor axis) (0,±b) = (0,±√10)
b= √10
The relation between the focus and semi major axes and semi minor axes are
The equation of ellipse formula
we know that
<u>Final answer:</u>-
<u>The equation of ellipse centered at the origin</u>
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Answer:
7
Step-by-step explanation:
Using the definition
n =
where n! = n(n - 1)(n - 2)..... 3 × 2 × 1
Then
7 =
=
← cancel out the multiples 6 ×5 × 4 × 3 × 2 × 1 , then
7 = 7