2 years ago

Help me pls I'm stuck......

1 answer:

Volgvan2 years ago

6 0

subtracting the smaller number from the larger number

ex. 1+ -5 becomes 5-1 = 4, since the larger number is the negative, the answer is negatives oit is -4

ex2. -5+7 = 7-5 = 2, since the larger number is positive, the answer is positive 2

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Yuri [45]

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Sunny_sXe [5.5K]

$\bold{\text{Answer: b.}\quad \dfrac{y^2}{100}+\dfrac{x^2}{49}=1}$

<u>Step-by-step explanation:</u>

The ellipse is vertical so y has the biggest radius.

Major axis (y) = 20 so the y-radius is 20/2 = 10

Minor axis (x) = 14 so the x-radius is 14/2 = 7

The equation of an ellipse is: $\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1$ where

Given: a = 7, b = 10

Assume: (h, k) = (0, 0)

$\dfrac{(x-0)^2}{7^2}+\dfrac{(y-0)^2}{10^2}=1\\\\\\\dfrac{x^2}{49}+\dfrac{y^2}{100}=1\\\\\\\longrightarrow \dfrac{y^2}{100}+\dfrac{x^2}{49}=1$

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Zielflug [23.3K]

Mitochondria, therefore D

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podryga [215]

Number 1 a and d are true

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SVEN [57.7K]

Answer:

Step-by-step explanation:

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