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3 years ago

13

What is the order of these numbers in least to greatest

1 answer:

omeli [17]3 years ago

4 0

Answer:

1.7 x 10^-9

2.4 x 10^-7

3.1 x 10^4

4.2 x 10^4

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The ratio of the number of left-handed batters to the number of right handed batters is 5:8. There are 45 left-handed batters. f

Anuta_ua [19.1K]

Answer=15:39

Step1(find the number of right handed batters)

Left-handed batters=45

5 45
__=___
8 x

Cross multiply
5x=360
divide both sides by 5
x=72
Right-handed batters=72

Step 2 (find the number of total batters)
total batters=45+72=117

Step3 (find the ratio of left handed batters to total batters)

Left-handed batters to total batters= 45/117
45/117 can be shortened to 15/39

Answer=15:39

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3 years ago

Find the coefficient of the x^3 in the expansion of (2x-9)^5

il63 [147K]

Use the binomial theorem:

$\displaystyle (2x-9)^5 = \sum_{k=0}^5 \binom5k (2x)^{5-k}(-9)^k = \sum_{k=0}^5 \frac{5!}{k!(5-k)!} 2^5 \left(-\frac92\right)^k x^{5-k}$

The <em>x</em> ³ terms occurs for 5 - <em>k</em> = 3, or <em>k</em> = 2, and its coefficient would be

$\dfrac{5!}{2!(5-2)!} 2^5 \left(-\dfrac92\right)^2 = \boxed{6480}$

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2 years ago

David is buying a new car for $21,349 he plans to make a down payment of $3000 if he makes monthly payments of $352 for the next

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He has paid 22 500 meanign that he says more than the car cost

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A circuit shows that the impedance of a component is −56i−56i. Is the component a resistor, a capacitor, or an inductor? Select

AlekseyPX

Answer:

c

Step-by-step explanation:

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2 years ago

Lin counts 5 bacteria under a microscope. She counts them again each day for four days, and finds that the number of bacteria do

Liula [17]

Answer:

The population of bacteria can be expressed as a function of number of days.

Population = $5*2^{n-1}$ where n is the number of days since the beginning.

Step-by-step explanation:

Number of bacteria on the first day= $5 * 2^{0} = 5$

Number of bacteria on the second day = $5 * 2^{1} = 10$

Number of bacteria on the third day = $5*2^{2} = 20$

Number of bacteria on the fourth day = $5*2^{3} = 40$

As we can see , the number of bacteria on any given day is a function of the number of days n.

This expression can be expressed generally as $5*2^{n-1}$ where n is the number of days since the beginning.

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3 years ago