How did newton know that 1%of 80 is 0.8

1 answer:

8 0

So,

Newton knows that 1% of anything really just means moving the decimal point two places to the left.

Examples:
1% of 10 = 0.1

1% of 389,092,192 = 3,890,921.92

1% of 3.1415926 = 0.031415926

Knowing this, Newton figures that all he has to do is move the decimal place two places to the left.

1% of 80 = 0.8

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The ellipse with x-intercepts (2, 0) and (-2, 0); y-intercepts (0, 4) and (0, -4).

masya89 [10]

Answer:

$\dfrac{x^2}{4}+\dfrac{y^2}{16}=1$

Step-by-step explanation:

If the ellipse has its x-intercepts at points (2, 0) and (-2, 0) and y-intercepts at points (0, 4) and (0, -4), then its symmetric across the y-axis and across the x-axis.

Moreover,

$a=2\\ \\b=4$

The equation of such ellipse is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

Hence, the equation of the ellipse is

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3 years ago

Consider a game in which you flip a coin. If it comes up heads, you earn 1 point; if it comes up tails, you earn 0 points. What

Sergeeva-Olga [200]

Answer:

C. 0.5

Step-by-step explanation:

Since a coin has 2 sides and there is the same probability of getting either side, then each side has a 50% or 0.5 probability. Therefore, in order to calculate the expected value of one coin flip we need to multiply the value of each side by its probability and add those values together like so...

1 * 0.5 = 0.5

0 * 0.5 = 0

Now we add these values together...

0.5 + 0 = 0.5

Finally, we can see that the expected value of one coin flip is 0.5

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A bag of corn tortilla chips costs 2.89 after a 15% discount. What is the original price?

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Answer:

3.4

Step-by-step explanation: