2 years ago

Check Up 2 (continued)

Mathematics

1 answer:

o-na [289]2 years ago

6 0

the answer is c.148 you welcome

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the volume of Cube A is 216 cubic inches. The length of each edge in Cube B is 2 inches longer then the length of each edge in C

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Answer:

I need points

Step-by-step explanation:

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2 years ago

Derive the equation of the parabola with a focus at (0, −4) and a directrix of y = 4.

CaHeK987 [17]

<u>Answer:</u>

$y=-\frac{1}{16} x^2$

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

Equation of parabola with focus at (0,-4) and directrix is $y=4$ .

We know that parabola is the locus of all the points such that the distance from fixed point on the parabola to fixed line directrix is the same.

The parabola is opening downwards.

Let any point on parabola is (x,y).

Distance from focus(0,-4) to (x,y) = $\sqrt{(x-0)^2+(y-(-4))^2}=|y-4|$

$\sqrt{(x-0)^2+(y-+4)^2}=|y-4|$

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

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

$x^2+(y^2+4y+4y+16)=y^2-4y-4y+16$

$x^2+y^2+8y+16=y^2-8y+16$

$x^2+16y^2=0$

$16y=-x^2$

$y=-\frac{1}{16} x^2$

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1 year ago

Determine the unknown angle measures of △DEF. Round to the nearest degree. m∠D = ° m∠F = °

Veseljchak [2.6K]

Angle D = 46
Angle F = 44

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3 years ago

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Find the distance between the points (1, 5) and (1, -4).

Ganezh [65]

Answer:

Step-by-step explanation:

$\tt distance=\sqrt{(1-1)^2+(-4-5)^2}=\sqrt{0^2+9^{2}}=\sqrt{9^2} =9$

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2 years ago

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The answer is 0.1 ❤️❤️❤️❤️ hope this helps

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2 years ago