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alukav5142 [94]
4 years ago
10

What is 247,000,000 in scientific notation

Mathematics
1 answer:
zavuch27 [327]4 years ago
6 0

Answer:

2.47 * 10^8

Step-by-step explanation:

When you convert a number to scientific notation, it is always important to remember that the whole number can never be greater than 10.

2.47000000

Then count the number of values after the decimal point.

2. 4 7 0 0 0 0 0 0

There are 8 values after the decimal point.

Meaning that 10 has to be to a power of 8 to get back to the original number.

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F(x) = x + 3<br> g(x) = 2x2 - 4<br> Find (f ·g)(x).
umka21 [38]

Answer:

2x^3+6x^2-4x-12

Step-by-step explanation:

3 0
3 years ago
Find the limit............​
liubo4ka [24]

Answer: -\frac{9}{x^2}

====================================================

Work Shown:

\displaystyle \lim_{\Delta x \to 0^{+}} \frac{\frac{9}{x+\Delta x} - \frac{9}{x}}{\Delta x}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{\frac{9x}{x(x+\Delta x)} - \frac{9(x+\Delta x)}{x(x+\Delta x)}}{\Delta x}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{\frac{9x-9(x+\Delta x)}{x(x+\Delta x)}}{\Delta x}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{9x-9x-9\Delta x}{x\Delta x(x+\Delta x)}\\\\\\

\displaystyle \lim_{\Delta x \to 0^{+}} \frac{-9\Delta x}{x\Delta x(x+\Delta x)}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{-9}{x(x+\Delta x)}\\\\\\\displaystyle \frac{-9}{x(x+0)}\\\\\\\displaystyle -\frac{9}{x^2}\\\\\\

The trick here is to first simplify the expression so that the \Delta x term in the very lower denominator cancels out. This is to avoid dividing by zero. Once this division by zero error is avoided, we can replace the delta x term with 0 and evaluate the limit as \Delta x approaches 0 from the right or positive direction.

5 0
3 years ago
Can someone please explain how to do this? Thanks!!
nataly862011 [7]

Answer:

hope it's correct and I helped

Step-by-step explanation:

3x + 6 = 18

4 0
3 years ago
A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a
Stella [2.4K]

Answer:

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Step-by-step explanation:

Confidence interval:

Confidence level of x%

We build from a sample.

Between a and b.

Intepretation: We are x% sure that the population mean is between a and b.

In this question:

90%

45 CEO's

Between ($139,048, $154,144).

So

We are 90% sure that the mean salary of all CEO's falls within this interval.

The correct answer is:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

4 0
3 years ago
After an 8% increase in your wages you receive $0.94 more per hour. About how much did you receive per hour before the increase
frez [133]
$0.87 your wages initially
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