3 years ago

9 430 000 000 000 km in standard form

Mathematics

1 answer:

mote1985 [20]3 years ago

8 0

9.43 x 10^12 is the answer

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if you know that 7 + 2i is a root of a polynomial function ,what is another root of that same function?

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The other root would be 7-2i

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3 years ago

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Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the

lesya692 [45]

Answer:

The correct option is 1.

Step-by-step explanation:

If a quadratic equation is defined as

$ax^2+bx+c=0$

then the quadratic formula is

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

The given equation is

$0=x^2-2x-3$

Here, a=1, b=-2 and c=-3.

Substitute these values in the above formula.

$x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-3)}}{2(1)}$

$x=\frac{2\pm \sqrt{(-2)^2-4(1)(-3)}}{2(1)}$

Therefore, the correct option is 1.

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4 years ago

A sequence is created from the function k(n) = 2n + 3, where n represents the position of the term of the sequence. The sequence

pashok25 [27]

Substitute the n value into the equation. The n repersents the 'nth' term.
K (1) = 2(1) + 3
K = 5
Therefore, when n = 1, K = 5
Same goes t any other term.

K (3) = 2(3) + 3
K = 9
So, when n = 3, K=9

Just keep applying the same rule. Also, make sure that you answer it with a sentence at the end. This should always help you and the marker see that you are confidence with your answer...

I hoped I helped out. Good luck. :)

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3 years ago

A set of high school student heights are normally distributed with a mean of 161 centimeters and a standard deviation of 15 cent

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Answer:

da/;vmd<>"d s

Step-by-step explanation:

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3 years ago

To graph y = -cosx, _____.

Lady bird [3.3K]

Answer:

reflect y = cos x over the x-axis

Step-by-step explanation:

When a function is reflected over the x-axis, the transformation is:

y = -f(x)

If it were reflected over the y-axis, the transformation would be:

y = f(-x)

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4 years ago