Distance of Foci = c
Then,
c = 4
As c^2 + b^2 = a^2
And, b = 3
Then us will have:
a^2 = 4^2 + 3^2
a^2 = 16 + 9
a^2 = 25
a = 5
The equation of ellipse to this question is:
x^2 / a^2 + y^2/b^2 = 1
Then,
x^2 / 25 + y^2 / 9 = 1
-7x^2-2x^2 = -9x^2 yea yea yea
Take his age, subtract off 12 and you get the sister's age
(brother's age) - 12 = sister's age
x - 12 = 14
x - 12+12 = 14+12 ... add 12 to both sides to undo "minus 12"
x = 26
<h3>The brother is 26 years old</h3>
The width of the deck is 6.5 feet.
The perimeter of a two-dimensional shape is the total length of the outline. To find the perimeter of a rectangle, we add the lengths of all four sides. Since opposite sides of a rectangle are always equal, we need to find the dimensions of length and width to find the perimeter of a rectangle. We can write the perimeter of the rectangle as twice the sum of its length and width. The perimeter is a linear measure and has units as meters, centimeters, inches, feet, etc.
Assuming the deck is rectangle
Perimeter = 2(length + width)
33ft = 2 (10 + width)
16.5 = 10 + width
width = 6.5 ft
Thus the width of the deck is 6.5 feet.
Learn more about perimeter of rectangle here :
brainly.com/question/15287805
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Answer:
5 is the answer because there
