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hram777 [196]
3 years ago
15

Solve the following system of equations via elimination. 12x – 9y = 30 6x+15y=54

Mathematics
1 answer:
sesenic [268]3 years ago
3 0

Answer:

x=4,y=2

Step-by-step explanation:

solve one of the equations for x/y and then plug it into the other

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UNO [17]

Answer:

D. 2*10^{27} kg

Step-by-step explanation:

Mass of Jupiter is given as 1,898,000,000,000,000,000,000,000,000 kg

Estimating this to the nearest whole number would be = 2,000,000,000,000,000,000,000,000,000 kg (rounding up the the "1,898")

To express this in scientific notation form, simply count how many zeros we have to the nearest whole number, 2.

We have 27 zeros there.

Therefore, we would multiply the whole number, 2, by 10 raise to the power of 27.

An estimate of the mass of Jupiter = 2*10^{27} kg

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What are the x intercepts of the quadratic function? Y=-x^2+2x-1
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Step-by-step explanation:

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x = -b ± √b²-4ac / 2a

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   = -2 / -2

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3 years ago
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