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Ipatiy [6.2K]
3 years ago
15

HELP PLEASE!!!!!!

Mathematics
1 answer:
Rudik [331]3 years ago
5 0
Assuming that when you wrote b2, you really meant b squared/ b to the second power, the correct answer should be the third one: 4a
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Find the center, vertices, and foci of the ellipse with equation 3x2 + 8y2 = 24
Sveta_85 [38]

Answer:

The center is at (0,0)

The vertices are at ( ( ±2 sqrt(2),0)

foci are  ( ±sqrt(5),0)

Step-by-step explanation:

3x^2 + 8y^2 = 24

Divide each side by 24

3x^2 /24 + 8y^2/24 = 24/24

x^2/8  + y^2 /3 = 1

The general equation of an ellipse is

(x-h)^2/  a^2  + (y-k)^2 / b^2  = 1

a>b   (h,k) is the center

the coordinates of the vertices are ( ±a,0)

the coordinates of the foci are  ( ±c,0), where  ^c2=a^2−b^ 2

The center is at (0,0)

a = sqrt(8) = 2sqrt(2)

The vertices are at ( ( ±2 sqrt(2),0)

c = 8 - 3 =5

foci are  ( ±sqrt(5),0)

3 0
4 years ago
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Find the quotient 8/1 ÷ 3/5
den301095 [7]
13 1/3 is the answer, or in mixed numbers should be 40/3
5 0
3 years ago
nick uses 8 dowels to make one birdhouse. if he bought 1,581 dowels, about how many birdhouses will he be able to make? (EXPLAIN
elixir [45]
If you take 1,581 divided by 8, you’ll get 197.625. Round, and you’ll receive about 198. If nick uses 8 dowels for one bird house, he’ll be able to make ABOUT 198 birdhouses.
8 0
3 years ago
If a number is not a whole number then it is not a natural number
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Natural numbers are our counting numbers. the numbers we see in nature. you can count 1,2,3,4 flowers. or 1,2,3,4,5,6,7,8 pedals on the flowers. etc they are our positive integers

whole numbers are numbers that can be written as an integer. 4/2 6/3 etc

so if it cant be written as an integer, it cant be a positive integer
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3 years ago
Which statement is true?
m_a_m_a [10]
D. All squares are quadrilaterals. Good luck!<span />
7 0
3 years ago
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