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3 years ago

I don’t know if I got this wrong could someone help me

Mathematics

2 answers:

wolverine [178]3 years ago

8 0

If you multiply .768 by 1000, you move the decimal point to the right 3 places, giving you 768, so your answer is correct.

<em>Hope this short response helps! :)</em>

lakkis [162]3 years ago

3 0

Don't Worry you are correct It was 1,000 because 768.0 divided by 1000 is .768, Hope this Helps :D

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How to find the value of x

stealth61 [152]

Answer:

×=1

Multiply both sides of the equation by 12, the least common multiple of 4,3.

3x+4(x−1)=3

Use the distributive property to multiply 4 by x−1.

3x+4x−4=3

Combine 3x and 4x to get 7x.

7x−4=3

Add 4 to both sides.

7x=3+4

Add 3 and 4 to get 7.

7x=7

Divide both sides by 7.

Divide 7 by 7 to get 1.

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4 years ago

Badwater Basin, California, has the lowest elevation in North America. It is 279 feet below sea level. New Orleans, Louisiana, i

SVETLANKA909090 [29]

Answer:

272 feets

Step-by-step explanation:

Badwater Basin = 279 feets below sea level = - 279 feets (relative to sea level)

New Orleans = 7 feets below sea level = - 7 feets (relative to sea level)

Hence,

New Orleans is higher Than Badwater Basin by :

279 feets - 7 feets

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3 years ago

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Karolina [17]

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3 years ago

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Helga [31]

Answer:

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3 years ago

Find the standard form of the equation of the parabola with a focus at (-2, 0) and a directrix at x = 2.

krok68 [10]

Answer:

$y^2=\frac{1}{8}x$

Step-by-step explanation:

The focus lies on the x axis and the directrix is a vertical line through x = 2. The parabola, by nature, wraps around the focus, or "forms" its shape about the focus. That means that this is a "sideways" parabola, a "y^2" type instead of an "x^2" type. The standard form for this type is

$(x-h)=4p(y-k)^2$

where h and k are the coordinates of the vertex and p is the distance from the vertex to either the focus or the directrix (that distance is the same; we only need to find one). That means that the vertex has to be equidistant from the focus and the directrix. If the focus is at x = -2 y = 0 and the directrix is at x = 2, midway between them is the origin (0, 0). So h = 0 and k = 0. p is the number of units from the vertex to the focus (or directrix). That means that p=2. We fill in our equation now with the info we have:

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

Simplify that a bit:

$x=8y^2$

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$y^2=\frac{1}{8}x$

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3 years ago