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NeX [460]
3 years ago
13

Choose the correct conic section to fit the equation.

Mathematics
1 answer:
erik [133]3 years ago
8 0

Answer:

Circle

Step-by-step explanation:

The given equation is x^2+y^2=16

We know the standard equation of a circle is given by

(x-h)^2+(y-k)^2=r^2

Where, (h,k) is the center of the circle and r is the radius.

We can rewrite the given equation in this form

(x-0)^2+(y-0)^2=4^2

Hence, the center of the circle is (0,0) and radius is 4.

Thus, the given equation represents a circle.

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Simplify the following ,leaving your answer as a surd <br>4/√5+3√125​
julia-pushkina [17]

Step-by-step explanation:

it would be best if you snapped this question for better understanding, however

4/√5. +. 3√125

4/√5. +. 3(√25 x √5)

4/√5 + 3(5√5)

4/√5 + 15√5

7 0
3 years ago
Your friend shows you a coin collection. In​ it, StartFraction 32 Over 50 EndFraction of the coins are quarters. What percent of
ziro4ka [17]

Answer: The percent of the coins are​ quarters = 64%.

Step-by-step explanation:

According to the given question , we have

The fraction of coins are quarters in the coin collection  = \dfrac{32}{50}

We know that to convert a fraction into percent , we multiply it by 100 .

Then , the percent of the coins are​ quarters = \dfrac{32}{50}\times100

which is equal to 32\times2\%=64\%

Therefore , the percent of the coins are​ quarters = 64%.

7 0
3 years ago
Explain why you divide by 2 for triangles and why you divide by 3 for pyramids
Damm [24]

Answer:

triangles are half a rectangle/square. So thats why you divide by 2. diving by 2 is also multiply by 1/2.

pyramids are in 3 dimensions, so since they are like half, but in three dimensions, you divide by 3, in other words multiply by 1/3.

Step-by-step explanation:

8 0
3 years ago
When they give you a x intercept and y intercept how do you write the equation
garri49 [273]
Y=mx+b is the equation
4 0
3 years ago
–2x + 1 – (–7x + 3) = –4 + 3(x – 2)
natali 33 [55]

Answer:

x = -4

Step-by-step explanation:

–2x + 1 – (–7x + 3) = –4 + 3(x – 2)

-2x + 1 + 7x - 3 = -4 + 3x - 6

-2x + 7x - 3x = -4 - 6 - 1 + 3

2x = -8

x = -8/2

x = -4

8 0
3 years ago
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