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3 years ago

What is the equation of the axis of symmetry for the parabola y= 1/4(x+2)^2-7

1 answer:

7 0

Your answer is -2 as the axis of symmetry is at -b/2a. So if you were to expand the equation, you would get y= x^2/4 +x -6 where b is 1 and 2a is ½ . Therefore -1 / ½ gives you -2

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vesna_86 [32]

He could have 30 dimes and 13 quartars

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2 years ago

Can i please get help with this geometry test?

RoseWind [281]

Answer:

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Step-by-step explanation:

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2 years ago

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Suppose an opaque jar contains 3 red marbles and 10 green marbles. The following exercise refers to the experiment of picking tw

kow [346]

Answer:

$\frac{5}{13}$

Step-by-step explanation:

Given,

Red marbles = 3,

Green marbles = 10,

So, the total marbles = 3 + 10 = 13,

$\because \text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

Since, here replacement is not allowed,

Thus, the probability of getting a green marble and a red marble

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$=\frac{30}{78}$

$=\frac{5}{13}$

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$=\frac{30}{156}$

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3 years ago

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2 years ago

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Points

liq [111]

Answer:

[x-h]^2 + [y-k]^2 =r^2

Step-by-step explanation:

Let x and y be an arbitrary point along the circle

The equation of the circle is given as:

[x-h]^2 + [y-k]^2 =r^2

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