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frozen [14]
3 years ago
14

Please help me with this problem​

Mathematics
1 answer:
maksim [4K]3 years ago
6 0

Answer:

A

Step-by-step explanation:

In standard form, an ellipse's major axis is indicated by the a^{2}, b^{2} terms like this:

\frac{{(y-k)}^{2}}{a^{2}}+\frac{(x-h)^{2}}{b^{2}}, a>b

\frac{{(x-h)}^{2}}{a^{2}}+\frac{(y-k)^{2}}{b^{2}}, a>b

In the top equation, the vertical axis is primary and in the second the horizontal axis is primary. That's a bit more info than the question asked, but I thought it may be helpful to understand the answer.

Now, a co-vertex is the intersection point between an ellipse and its minor axis. On the graph of the ellipse, the b is the distance from the center to where the ellipse intersects its minor axis, so our answer is A.

If a graphical representation would be helpful, I would take a look at the Math Warehouse article on the Equation of an Ellipse in Standard Form.

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Please help!!
timofeeve [1]

Answer:

y = 2/3x

Step-by-step explanation:

So we know, when lines are perpendicular that they share the same slope. The slope in the equation of y = 2/3x + 7 is 2/3x. So, we have our slope. Now, we just need to find our b. We plug in the point that you gave us into the equation y = mx + b.

3 = 2/3(2) + b

we multiply the denominator 3 by 2, then divide that by the numerator 2.

3 = 3 + b

subtract 3 from itself and from the opposite side of the equal side 3.

0 = b

in the end, there is no b for this equation. Our answer is

y = 2/3x

6 0
3 years ago
Janet has a square piece of cloth. She cuts 3 inches off of the length of the square and 3 inches off of the width. The area of
kolezko [41]
24
3+3=6
6×4=24
24 inches
8 0
3 years ago
The difference between 31 and a number is 7
astra-53 [7]

Answer:

thirty-eight

Step-by-step explanation:

31+7= answer

5 0
3 years ago
Read 2 more answers
Find the volume of the cube 1/3 km 1/3 km 1/3 km
guapka [62]

Answer:

  • The volume of cube=1/27 km^3

Step-by-step explanation:

As The volume of cube =the cube(^3) of the sides.

7 0
3 years ago
Marine biologists have been studying the effects of acidification of the oceans on weights of male baluga whales in the Arctic O
PSYCHO15rus [73]

Answer:

c. 61.25 kg

Step-by-step explanation:

The margin of error in estimating the true mean weight of male baluga whales in the Artic Ocean.

a. 15.31 kg

b. 51.40 kg

c. 61.25 kg

d. 80.49 kg

Margin of Error Formula= z × Standard deviation/√n

95% confidence interval = 1.96

Standard deviation = 125kg

n = 16 samples

Margin of error= 1.96 × 125/√16

= 1.96 × 125/4

= 245/4

= 61.25kg

The margin of error in estimating the true mean weight of male baluga whales in the Artic Ocean is 61.25kg

6 0
3 years ago
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