Answer:
The fourth image
Step-by-step explanation:
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answer: </em></u>21 is 70% of 30
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Working out percentages
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We have, 70% × x = 21
or, 70100 × x = 21
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Multiplying both sides by 100 and dividing both sides by 70,
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we have x = 21 × 100
70
x = 30
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If you are using a calculator, simply enter 21×100÷70, which will give you the answer.</em></u></h2>
The correct equations of a parabola are z = 2(y-9)²-2 and y = 2(z-2)²-9.
This is a problem with coordinate geometry. We can solve this by following a few steps.
First of all we should know the ideal equation of a parabola. The equation is,
- where ( h, k ) is the vertex of the parabola.
From all those options only last two equations satisfy the conditions.
Where the coordinate of the vertex of this parabola is ( 9, 2 ).
Hence we can conclude that z = 2(y-9)²-2 and y = 2(z-2)²-9 are the correct equation of a parabola.
To know more about parabola visit,
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He didn't finish the trip, he walked for 5hrs and 41 minutes and 30 seconds, and walked 34.32km
