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4 years ago

Which is the best estimate for written in scientific notation?

Mathematics

2 answers:

Amiraneli [1.4K]4 years ago

6 0

I'm assuming you mean which one is written properly? It would be either 3 x 10^4 or 6 x 10^4.

Hope it helps!

Ainat [17]4 years ago

5 0

For this case we have the following expression:

$\frac{8.9*10^8}{3.3*10^4}$

Rewriting the expression we have:

$\frac{8.9}{3.3} \frac{10^8}{10^4}$

For power properties we have:

In the division, Same base the exponents are subtracted

We have then:

$\frac{8.9}{3.3}*10^{8-4}$

$\frac{8.9}{3.3}*10^{4}$

$3*10^{4}$

Answer:

The best approach in scientific notation is given by:

$3*10^{4}$

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logb(x) = y is equivalent to b^y =x

y = 2

b = 5

x = 25

Substitute the values to get 5^2 = 25

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3 years ago

Consider the functionf:R→Rdefined viaf(x) =|x|.(a) Give a functiongwith domainRsuch thatg◦fis one-to-one, or describe why it is

yaroslaw [1]

Answer:

(a) Is not possible

(b) It is possible

(d) Is NOT possible.

Step-by-step explanation:

(a)

Is not possible, notice that for any function $g$ such that

$g : \mathbb{R} \rightarrow \mathbb{R}$

you would have that

$(g\circ f)(x) = g(f(x)) = g(|x|)$

And for, lets say -3,3 you have that

$g(|-3|) = g(|3|) = g(3)$ therefore is not possible to find a function that is one to one.

(b)

It is possible. Take the following function

$g(x) = x\sin(x)$ since $\sin$ is periodic it will take positive and negative numbers and if you multiply by $x$ each period will become bigger and bigger.

(c)

It is possible. Take the function

$g(x) = \sqrt{x}$

Then

$(f \circ g )(x) = | \sqrt{x} | = \sqrt{x}$ and $\sqrt{x}$ is one to one.

(d)

It is NOT possible because $(f\circ g)(x) = f(g(x)) = |g(x)|$ and that will always be positive.

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4 years ago

Into a bucket, 3.705 liters of water flowed in 7.8 minutes. Enter the number of liters that flowed into the bucket each minute a

alina1380 [7]

Just divide the numbers of liter by the number of mins to get the units liter/min.
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3 years ago

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Answer:

$4y = 5x - 14$

Step-by-step explanation:

Attached above

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3 years ago

Square PQRS is rotated 180° counterclockwise around the origin.

KiRa [710]

The side that is equivalent to side SR is side AB.

<h3>How to carry out Rotational Transformation?</h3>

When rotating a point 180 degrees counterclockwise about the origin, our point A(x, y) becomes A'(-x, -y). Thus, all we do is make both x and y negative.

The coordinates of the original square are;

P(2, 4); Q(5, 5); R(5, 1); S(2, 1)

Now, applying the transformation rule above gives us;

P(-2, -4); Q(-5, -5); R(-5, -1); S(-2, -1)

The side that is therefore equivalent to side SR is side AB.

Read more about Rotational Transformation at; brainly.com/question/26249005

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2 years ago