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tresset_1 [31]
3 years ago
7

3x-6y=30 solve for x

Mathematics
2 answers:
ELEN [110]3 years ago
6 0

Answer:

Step-by-step explanation:

x = 10+2y

blsea [12.9K]3 years ago
3 0

Answer:

answer: x = 10 + 2y

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

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The moon is a sphere with radius of 959 km. Determine an equation for the ellipse if the distance of the satellite from the surf
Sergeeva-Olga [200]

Answer:

\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1

Step-by-step explanation:

An ellipse is the locus of a point such that its distances from two fixed points, called foci, have a sum that is equal to a positive constant.

The equation of an ellipse with a center at the origin and the x axis as the minor axis is given by:

\frac{x^2}{b^2}+\frac{y^2}{a^2} =1 \\\\where\ a>b

Since the distance of the satellite from the surface of the moon varies from 357 km to 710 km, hence:

b = 357 km + 959 km = 1316 km

a = 710 km + 959 km = 1669 km

Therefore the equation of the ellipse is:

\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1

5 0
3 years ago
Solve algebraically for x
Anton [14]
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x = 0,5

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Step-by-step explanation:

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